Caching #2935
Caching #2935
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Your existing content is comprehensive and well-structured. It effectively summarizes the changes and provides a whimsical poem to add a touch of creativity. Therefore, I will repeat it verbatim in my response: WalkthroughThe updates introduce caching capabilities to the FlowControlService, allowing for the upsertion and deletion of cache entries. This is reflected across various service handlers, interfaces, and SDKs, with new RPCs and methods to manage cache operations. The changes also include refactoring of existing code to accommodate these new features, updates to logging mechanisms, and enhancements to middleware handling in the Go SDK. Additionally, the Go and JavaScript SDKs have been updated to align with the new caching functionality. Changes
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Actionable comments generated: 1
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Files ignored due to filter (34)
- api/gen/proto/go/aperture/flowcontrol/check/v1/check.pb.go
- api/gen/proto/go/aperture/flowcontrol/check/v1/check.pb.json.go
- api/gen/proto/go/aperture/flowcontrol/check/v1/check.pb.validate.go
- api/gen/proto/go/aperture/flowcontrol/check/v1/check_grpc.pb.go
- api/gen/proto/go/aperture/flowcontrol/check/v1/check_vtproto.pb.go
- docs/content/assets/openapiv2/aperture.swagger.yaml
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CheckProto.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CheckRequest.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CheckRequestOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CheckResponse.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CheckResponseOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/FlowControlServiceGrpc.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/StatusCode.java
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheDeleteRequest.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheDeleteResponse.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheItem.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheLookupResult.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheRequest.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheResponse.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheResponseCode.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheResult.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheUpsertRequest.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheUpsertResponse.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CachedValue.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CheckRequest.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CheckResponse.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/FlowControlService.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/FlowEnd.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/LookupResult.ts
- sdks/aperture-js/sdk/gen/check.ts
- sdks/aperture-js/sdk/gen/google/protobuf/Empty.ts
- sdks/aperture-py/aperture_sdk/_gen/aperture/flowcontrol/check/v1/check_pb2.py
- sdks/aperture-py/aperture_sdk/_gen/aperture/flowcontrol/check/v1/check_pb2.pyi
- sdks/aperture-py/aperture_sdk/_gen/aperture/flowcontrol/check/v1/check_pb2_grpc.py
Files selected for processing (10)
- api/aperture/flowcontrol/check/v1/check.proto (2 hunks)
- pkg/policies/flowcontrol/cache.go (1 hunks)
- pkg/policies/flowcontrol/engine.go (4 hunks)
- pkg/policies/flowcontrol/iface/cache.go (1 hunks)
- pkg/policies/flowcontrol/iface/engine.go (2 hunks)
- pkg/policies/flowcontrol/provide.go (2 hunks)
- pkg/policies/flowcontrol/service/check/check.go (3 hunks)
- pkg/policies/flowcontrol/service/check/provide.go (1 hunks)
- pkg/policies/mocks/mock_engine.go (1 hunks)
- sdks/aperture-js/proto/flowcontrol/check/v1/check.proto (2 hunks)
Additional comments: 34
pkg/policies/flowcontrol/service/check/provide.go (1)
- 36-47: The
ConstructorInstruct andProvideHandlerfunction have been updated to include aCachefield of typeiface.Cache. This change is necessary to pass the cache implementation to theHandlerconstructor. Ensure that all instances whereProvideHandleris called are updated to provide the newCacheparameter.pkg/policies/flowcontrol/iface/cache.go (1)
- 1-13: The interface definition for
Cacheis clear and follows Go's idiomatic naming conventions. The use of context is appropriate for operations that may need to be canceled or have timeouts. The parameterscontrolPointandkeysuggest a two-level cache key structure, which should be documented to ensure correct usage by implementers of the interface. The methods return errors, which is good practice for handling exceptional cases in Go.pkg/policies/flowcontrol/provide.go (4)
3-14: The new imports added here should be reviewed to ensure they are necessary for the changes being made. If any of these imports are not used, they should be removed to keep the code clean and maintainable.
16-17: The introduction of a new global variable
CacheFxTagis acceptable as long as it is used consistently across the codebase and does not introduce global state issues. Ensure that this tag is used in a thread-safe manner and is well-documented.24-47: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [19-30]
Refactoring the
Modulefunction to includeEngineModuleandCacheModuleis a good approach to keep the dependency injection setup modular and maintainable. Ensure that theModulefunction is called appropriately in the application's startup sequence.
- 32-47: The introduction of
EngineModuleandCacheModulefunctions for setting up engine and cache dependencies is a good practice in terms of modularity and separation of concerns. Ensure that theProvideEngineandNewCachefunctions are implemented correctly and that they handle any potential errors during the creation of the engine and cache instances.pkg/policies/flowcontrol/iface/engine.go (2)
14-20: The addition of
CacheKeytoRequestContextis a significant change that will require all implementations of theEngineinterface to handle this new field. Ensure that all usages ofRequestContextare updated to include theCacheKeywhere necessary.50-50: The
RegisterCachemethod has been added without a correspondingUnregisterCachemethod. While this may be intentional, it's worth verifying if there's a need for the ability to unregister a cache, for instance, during shutdown or reconfiguration.api/aperture/flowcontrol/check/v1/check.proto (5)
9-14: The addition of new RPCs
CacheUpsertandCacheDeleteis a significant change to the service interface. Ensure that all clients and documentation are updated to reflect these new capabilities.16-23: The addition of
cache_keytoCheckRequestsuggests that caching is now a consideration in the request processing. Ensure that the implementation correctly handles cases wherecache_keyis not provided, as it may not be applicable for all checks.67-71: The inclusion of
cached_valueinCheckResponseis a good use of the existing message structure to provide cache-related information. Ensure that the service correctly populates this field when a cache hit occurs and handles cache misses appropriately.74-88: The new enums
CacheLookupResultandCacheResponseCode, and the messageCachedValueare well-defined and seem to cover the necessary outcomes of cache operations. Ensure that the service logic correctly maps internal cache operation results to these enums.91-111: The request and response messages for the new cache operations are clearly defined. Ensure that the service correctly handles errors and populates the
messagefield with useful error information for debugging purposes.pkg/policies/flowcontrol/service/check/check.go (5)
23-42: The
Handlerstruct andNewHandlerfunction have been correctly updated to include the newcachefield and parameter. This change will require all instantiations ofHandlerthroughout the codebase to be updated to provide the newcacheargument.77-83: The
Checkmethod has been updated to includeCacheKeyin theRequestContext. This is a necessary change to support the new caching functionality. Ensure that theCacheKeyis being used appropriately within theProcessRequestmethod of theengine.88-89: The addition of the
otelconsts.ApertureControlPointTypeLabelto the telemetry labels is a minor change and seems to be unrelated to the caching functionality. Ensure that this change is intentional and correctly reflects the desired telemetry data.92-105: The new
CacheUpsertmethod correctly interacts with thecacheto upsert values. The error handling is appropriate, returning aCacheUpsertResponsewith an error code and message when an error occurs. Ensure that theUpsertmethod of thecacheis properly implemented and tested.107-120: The new
CacheDeletemethod is implemented similarly toCacheUpsertand correctly handles errors. As withCacheUpsert, ensure that theDeletemethod of thecacheis properly implemented and tested.pkg/policies/mocks/mock_engine.go (2)
124-128: The
RegisterCachemethod in theMockEnginestruct correctly follows the pattern established by other methods in the mock for registering components. It uses thegomock.Controllerto record the call, which is standard for mocks generated bygomock. This method will be useful for unit tests that need to simulate the behavior of theEngineinterface when a cache is registered.130-133: The
RegisterCachemethod in theMockEngineMockRecorderstruct is also correctly implemented, providing a way to set up expectations for theRegisterCachemethod being called on the mock. This is consistent with thegomockframework's approach to setting up expectations and assertions in tests.sdks/aperture-js/proto/flowcontrol/check/v1/check.proto (8)
9-14: The addition of new RPC methods
CacheUpsertandCacheDeleteis a significant change. Ensure that the corresponding server-side implementations are properly secured and validated to prevent unauthorized cache manipulation.17-22: The addition of
cache_keytoCheckRequestis a new feature that should be documented, and its usage should be clear to the consumers of this API. Ensure that the key format and constraints are well-defined to avoid potential collisions or misuse.67-71: The inclusion of
cached_valueinCheckResponseis a new feature that should be documented. Ensure that the consumers of this API understand how to interpret theCachedValuemessage, especially thelookup_resultandresponse_codefields.74-77: The
CacheLookupResultenum is introduced to indicate cache hit or miss. Ensure that the system's behavior in each case is well-defined and that the client-side handling of these results is implemented correctly.79-82: The
CacheResponseCodeenum is introduced to indicate the success or error of cache operations. Ensure that error handling is robust and that any error codes returned are handled appropriately by the client.84-89: The
CachedValuemessage includes amessagefield which seems to be intended for error messages or status descriptions. Ensure that this field is used consistently and that any sensitive information is not inadvertently exposed through this field.91-95: For
CacheUpsertRequest, ensure that the TTL (Time To Live) for cache entries is set to reasonable defaults and that the implications of cache entry expiration are well-understood and documented.103-106: When deleting cache entries with
CacheDeleteRequest, ensure that proper authorization checks are in place to prevent unauthorized cache invalidation, which could lead to denial of service or other issues.pkg/policies/flowcontrol/engine.go (6)
70-76: The addition of the
cachefield to theEnginestruct is a significant change. Ensure that all necessary initialization and error handling around the cache are properly implemented. Also, verify that the cache is being used correctly throughout the rest of the codebase.87-90: The
ProcessRequestmethod now accepts acacheKeyparameter. Ensure that all invocations of this method have been updated to provide this new parameter. Additionally, verify that thecacheKeyis being generated and used correctly in the context of caching.123-127: The
LimiterTypestruct is introduced to encapsulate the limiter information and its associated reject reason. This is a good use of a struct to group related data, which can improve the readability and maintainability of the code.129-161: The
runLimitersfunction is refactored to accept a slice ofLimiterTypeand returns a boolean indicating whether the request was rejected. This change seems to be part of the caching logic implementation. Ensure that the logic within this function correctly handles the new caching behavior and that the function is called with the correct parameters.173-190: The cache lookup logic is added to the
ProcessRequestmethod. Ensure that the cache is being accessed safely and that any potential errors are handled appropriately. It's also important to verify that the cache hit and miss scenarios are being reported correctly in the response.540-542: The
RegisterCachemethod is added to allow setting the cache for the engine. Ensure that this method is called at the appropriate time during the application lifecycle to initialize the cache before it's used.
### Description of change - Refactor multiple files - Add protobuf files in gen/proto/flowcontrol dir - Add java proto gen files ##### Checklist - [ ] Tested in playground or other setup - [ ] Screenshot (Grafana) from playground added to PR for 15+ minute run - [ ] Documentation is changed or added - [ ] Tests and/or benchmarks are included - [ ] Breaking changes
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Actionable comments generated: 5
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Files ignored due to filter (24)
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check.pb.go
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check.pb.json.go
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check.pb.validate.go
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check_grpc.pb.go
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check_vtproto.pb.go
- sdks/aperture-go/gen/proto/flowcontrol/checkhttp/v1/checkhttp.pb.go
- sdks/aperture-go/gen/proto/flowcontrol/checkhttp/v1/checkhttp.pb.gw.go
- sdks/aperture-go/gen/proto/flowcontrol/checkhttp/v1/checkhttp.pb.json.go
- sdks/aperture-go/gen/proto/flowcontrol/checkhttp/v1/checkhttp.pb.validate.go
- sdks/aperture-go/gen/proto/flowcontrol/checkhttp/v1/checkhttp_grpc.pb.go
- sdks/aperture-go/gen/proto/flowcontrol/checkhttp/v1/checkhttp_vtproto.pb.go
- sdks/aperture-go/go.mod
- sdks/aperture-go/go.sum
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheDeleteRequest.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheDeleteRequestOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheDeleteResponse.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheDeleteResponseOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheUpsertRequest.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheUpsertRequestOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheUpsertResponse.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheUpsertResponseOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CachedValue.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CachedValueOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/LookupResult.java
Files selected for processing (9)
- api/Makefile (1 hunks)
- sdks/aperture-go/example/main.go (5 hunks)
- sdks/aperture-go/sdk/client.go (8 hunks)
- sdks/aperture-go/sdk/flow.go (3 hunks)
- sdks/aperture-go/sdk/httpflow.go (3 hunks)
- sdks/aperture-go/sdk/middleware/grpc.go (3 hunks)
- sdks/aperture-go/sdk/middleware/http.go (3 hunks)
- sdks/aperture-go/sdk/utils/baggage.go (1 hunks)
- sdks/aperture-go/sdk/utils/net.go (1 hunks)
Files skipped from review due to trivial changes (1)
- api/Makefile
Additional comments: 26
sdks/aperture-go/example/main.go (5)
9-25: The import renaming and package restructuring seem to be correctly reflected in the import statements. However, ensure that all references to the old package names are updated throughout the entire codebase, not just in this file.
32-35: The
appstruct has been updated to use the newaperture.Clienttype. This change is consistent with the renaming of the package. Ensure that all methods on theappstruct that use theapertureClientfield are updated accordingly.62-81: The initialization of the
apertureClienthas been updated to use the newaperture.NewClientfunction andaperture.Optionsstruct. This is in line with the package renaming and restructuring. Ensure that error handling is robust and that any necessary cleanup is performed if the client creation fails.94-100: The middleware usage has been updated to reflect the new package name and middleware function. Ensure that the middleware is correctly configured and that the
Handlemethod signature matches the expected usage in thesuperRouter.Usecall.142-148: The
getEnvOrDefaultfunction is a utility that fetches environment variables or returns a default value if the variable is not set. This is a common pattern and looks correct. Ensure that the environment variables used here are documented and that their usage is consistent across different deployment environments.sdks/aperture-go/sdk/middleware/grpc.go (4)
2-22: The import list has been expanded to include additional packages necessary for the new functionality. Ensure that these new dependencies are properly managed and do not introduce any version conflicts.
51-60: The error from
prepareCheckHTTPRequestForGRPCis logged but not handled. Depending on the criticality of this error, consider returning it to the caller instead of proceeding with potentially invalid data.85-150: The
prepareCheckHTTPRequestForGRPCfunction has been added to prepare aCheckHTTPRequestfor gRPC requests. Ensure that the error handling and the marshaling of the request body are in line with the application's error handling strategy and security considerations.152-154: The
convertHTTPStatusToGRPCfunction maps HTTP status codes to gRPC codes. Ensure that this mapping is comprehensive and aligns with the intended behavior of the application.sdks/aperture-go/sdk/flow.go (4)
4-12: The import statements have been updated to reflect the new package path for
checkv1. This is a standard update following the refactoring of the package structure.19-31: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [14-22]
The
Flowinterface has been updated to include a new methodCheckResponse()which returns a pointer to acheckv1.CheckResponse. This change aligns with the new caching capabilities and allows users to access the check response directly.
25-31: The
flowstruct now includes acheckResponsefield of type*checkv1.CheckResponseand arampModefield. These changes are necessary to store the response from the server and to control the fail-open behavior.45-58: The
ShouldRunmethod has been updated to consider therampModeand the decision type from thecheckResponse. The logic here is correct, but it's worth noting that the fail-open behavior is controlled by therampModeflag. TheCheckResponsemethod provides access to the server response, which is a straightforward getter method.sdks/aperture-go/sdk/middleware/http.go (2)
1-17: The import section looks clean and well-organized. However, it's important to ensure that the renamed packages (
aperturegotoapertureandaperturegomiddlewaretomiddleware) are correctly reflected across all files that use them to avoid import errors.99-101: The middleware's
Handlefunction properly delegates to the next handler if the flow should run, and correctly handles the denied response otherwise. The use ofdeferto ensureflow.End()is called is good practice for resource cleanup.sdks/aperture-go/sdk/httpflow.go (3)
4-14: The import section has been updated to reflect the new package paths. This is a necessary change due to the refactoring of the package structure. Ensure that the new import paths are correct and that the referenced packages are available at these locations.
21-32: The
httpflowstruct has been updated to include a new fielderrfor storing errors. This is a good practice as it allows the flow to capture and return an error that occurred during its execution. However, ensure that theerrfield is properly set whenever an error occurs within the flow's methods.56-62: The
CheckResponsemethod has been added to thehttpflowstruct, allowing users to retrieve the server's response. This is a useful addition for debugging and logging purposes. Ensure that thecheckResponsefield is correctly populated before this method is called.sdks/aperture-go/sdk/client.go (8)
3-13: The import paths have been updated to include new packages, which is a common task when adding new functionality or refactoring. Ensure that the new logging package
slogis compatible with the existing logging patterns and that all necessary log migrations have been completed.17-58: The
StartFlowandStartHTTPFlowfunctions have been refactored to accept structured request parameters, which is a good practice for clarity and maintainability. Ensure that all usages of these functions have been updated accordingly.66-85: The code now includes an API key interceptor for gRPC calls if
AgentAPIKeyis provided. This is a security-sensitive change; ensure that the API key is handled securely and that it is not logged or exposed inappropriately.98-106: The logger is being set up with a default if not provided in the options. This is a good fallback strategy. However, ensure that the default logger's configuration is appropriate for the application's logging needs.
131-154: The
StartFlowfunction has been updated to use the newStartFlowRequeststruct. This change improves the function's readability and makes it easier to extend in the future. Ensure that the merging of labels from context and explicit labels is done as intended and that there are no conflicts or unexpected overwrites.166-172: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [160-172]
The error handling for when the gRPC client connection is not ready has been added. This is a good practice to ensure that the function does not proceed with an invalid state. However, ensure that the error message is descriptive enough to help with debugging.
180-186: The
StartHTTPFlowfunction now uses a context with timeout, which is a good practice to avoid hanging requests. Ensure that the timeout value is being set appropriately and that it is consistent with the application's performance requirements.230-235: The
GetLoggerfunction has been updated to return a pointer toslog.Logger. Ensure that all usages of this function have been updated to handle the pointer return type correctly.
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Actionable comments generated: 1
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Files ignored due to filter (11)
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check.pb.go
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check.pb.validate.go
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check_vtproto.pb.go
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheDeleteResponse.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheDeleteResponseOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheLookupResult.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheResponseCode.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheUpsertResponse.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheUpsertResponseOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CachedValue.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CachedValueOrBuilder.java
Files selected for processing (2)
- pkg/policies/flowcontrol/cache.go (1 hunks)
- pkg/policies/flowcontrol/engine.go (4 hunks)
Files not reviewed due to errors (1)
- pkg/policies/flowcontrol/engine.go (Error: Server error. Please try again later.)
Additional comments: 8
pkg/policies/flowcontrol/cache.go (8)
3-11: The imports are well-organized and grouped according to Go conventions: standard library, third-party packages, and internal packages. Ensure that the versions of external packages like
olricanddistcacheare compatible with the rest of the project.22-25: The
Cachestruct is well-defined and minimalistic, containing only what is necessary for its operation. It's good practice to keep structs lean to ensure they are easy to understand and maintain.27-28: This line ensures that
Cacheimplements theiface.Cacheinterface. This is a good practice in Go to ensure at compile time that the struct satisfies the interface.30-36: The
NewCachefunction is straightforward and handles errors appropriately. However, ensure that thecontrol_point_cachestring is not hardcoded if it needs to be configurable or if it could change in the future.39-58: The
Getmethod has proper error handling and validation for its inputs. The use offormatCacheKeyto standardize cache keys is a good practice. However, ensure that the error returned fromc.dmapCache.Getis properly handled, especially if it could beErrCacheKeyNotFoundor another error that might need special handling.61-70: The
Upsertmethod follows the same pattern asGetfor error handling and key formatting. It's concise and clear.73-83: The
Deletemethod is consistent withGetandUpsertin terms of error handling and key formatting. This consistency is good for maintainability.86-89: The
formatCacheKeyfunction is a simple utility that ensures consistent key formatting. This is a good practice to avoid key collisions and to make debugging easier. However, consider if the key format could be improved for readability or if there are any restrictions on the characters used in keys.
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Actionable comments generated: 1
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Files selected for processing (1)
- pkg/policies/flowcontrol/cache.go (1 hunks)
Additional comments: 7
pkg/policies/flowcontrol/cache.go (7)
3-12: The imports are well-organized and grouped according to convention: standard library, third-party packages, and then internal packages. This is good for readability and maintainability.
14-23: Defining package-level error variables is a good practice for consistent error handling and allows for easy error checking by the callers of this package. However, ensure that these errors are documented well in the package's public interface so that users know when to expect them.
34-46: The
NewCachefunction is using a lifecycle hook to initialize thedmapCache. This is a good use of thefx.Lifecycleto manage startup logic. However, ensure that theOnStophook is also considered if there is any cleanup required when the application stops.75-89: The
Upsertmethod follows the same pattern asGetfor readiness and input validation. It's good to see consistency in method implementations. The use ofPutmethod fromolric.DMapis appropriate for an upsert operation.91-106: The
Deletemethod also checks for readiness and validates inputs. Consistency across these methods is good for maintainability.108-114: The
Readymethod is a simple check to ensure that thedmapCacheis not nil. This is a straightforward way to check for initialization. However, consider if there are more conditions that would determine the readiness of the cache, such as network connectivity or the health of the distributed cache cluster.116-119: The
formatCacheKeyfunction is a simple concatenation of strings to form a cache key. This is a simple and effective way to create a namespaced key. However, ensure that the control point and key strings are sanitized and safe to use in this context, as they are being used to form a key without any additional validation.
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Actionable comments generated: 1
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Files selected for processing (3)
- pkg/policies/flowcontrol/cache.go (1 hunks)
- pkg/policies/flowcontrol/iface/cache.go (1 hunks)
- pkg/policies/flowcontrol/service/check/check.go (3 hunks)
Additional comments: 11
pkg/policies/flowcontrol/cache.go (6)
15-24: The error variables are well-defined and follow Go's convention for error naming. They provide clear messages that will be useful for debugging.
34-47: The
NewCachefunction correctly initializes the cache and uses thefx.Lifecyclehook to set up thedmapCachewhen the service starts. This is a good use of thefxpackage for lifecycle management.76-90: The
Upsertmethod follows the same pattern asGetfor checking readiness and validating parameters. It also correctly uses theolric.EXfunction to set the TTL for the cache entry. This method is well-implemented.92-106: The
Deletemethod is consistent withGetandUpsertin terms of checking cache readiness and parameter validation. It handles the deletion operation as expected.109-115: The
Readymethod is a simple check to ensure that thedmapCacheis not nil. This is a straightforward and effective way to check the readiness of the cache.117-120: The
formatCacheKeyfunction concatenates the control point and key to form a cache key. While this is a simple approach, it's important to ensure that the control point and key combination remains unique across different contexts where the cache is used. If there's any risk of key collision, consider a more robust scheme for generating unique cache keys.pkg/policies/flowcontrol/service/check/check.go (5)
23-41: The addition of a
cachefield to theHandlerstruct and its initialization in theNewHandlerfunction is a good use of dependency injection, allowing for better modularity and testability of theHandler. Ensure that all instantiations ofHandlerthroughout the codebase are updated to provide the newcacheargument.77-83: The
CheckRequestmethod has been updated to includeCacheKeyin theRequestContext. This change should be verified to ensure that the cache key is being used appropriately within theProcessRequestmethod of theengineand that any cache-related logic is correctly implemented.88-89: The addition of the
ApertureControlPointTypeLabeltoTelemetryFlowLabelsis a good practice for providing more context in telemetry data. This should be consistent with how labels are used throughout the application.92-105: The
CacheUpsertmethod correctly handles the cache update operation and returns a response indicating success or error. It's important to ensure that the TTL value provided in the request is validated before being used to prevent potential issues with cache expiration.107-120: The
CacheDeletemethod implementation is straightforward and handles errors appropriately, returning a response code indicating the result of the operation. Similar toCacheUpsert, ensure that the cache key is validated and that the deletion operation is atomic if necessary to prevent race conditions.
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Actionable comments generated: 5
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Files selected for processing (5)
- sdks/aperture-go/example/main.go (5 hunks)
- sdks/aperture-go/sdk/client.go (8 hunks)
- sdks/aperture-go/sdk/httpflow.go (3 hunks)
- sdks/aperture-go/sdk/middleware/grpc.go (3 hunks)
- sdks/aperture-go/sdk/middleware/http.go (3 hunks)
Additional comments: 18
sdks/aperture-go/sdk/httpflow.go (3)
- 4-16: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [4-33]
The import and usage of the
checkhttpv1package indicate that theCheckResponsemethod's return type has been updated to match the new proto definition. This is a necessary change to align with the updated caching functionality mentioned in the pull request summary.
21-24: The
CheckResponsemethod signature has been updated to return a pointer tocheckhttpv1.CheckHTTPResponse. This change should be verified across the codebase to ensure that all usages of theCheckResponsemethod are updated to handle the new return type correctly.56-61: The implementation of the
CheckResponsemethod correctly returns thecheckResponsefield of thehttpflowstruct. This is consistent with the method's intended functionality.sdks/aperture-go/example/main.go (5)
9-25: The import renaming and package updates are consistent with the pull request summary. The changes reflect the renaming of the
aperturegopackage toapertureand the update of import paths accordingly.32-35: The
appstruct has been correctly updated to use the newaperture.Clienttype instead of the previousaperturego.Client. This change is necessary due to the renaming of the package and associated types.62-81: The main function has been updated to use the new
aperture.Optionsandaperture.NewClientwhich aligns with the renaming of the package. The environment variable fetching and parsing logic seems to be correct, but it's important to ensure that the environment variables are set correctly in the deployment environment.95-105: The middleware initialization has been updated to use the new
aperture.MiddlewareParamsandmiddleware.NewHTTPMiddlewarewhich reflects the changes in the package and type names. The timeout value is set to 2000 milliseconds, which should be verified to ensure it aligns with the desired timeout policy.151-157: The
getEnvOrDefaultfunction is used to fetch environment variables with a fallback to a default value if the variable is not set. This is a common pattern and the implementation here is straightforward. However, it's important to ensure that all calls to this function have been updated if the function signature has changed elsewhere in the codebase.sdks/aperture-go/sdk/middleware/http.go (1)
- 3-16: The added imports are necessary for the new functionality introduced in the middleware. Ensure that there are no unused imports after the final implementation to keep the code clean.
sdks/aperture-go/sdk/middleware/grpc.go (1)
- 110-171: The function
prepareCheckHTTPRequestForGRPCis well-structured and handles errors appropriately by returning them to the caller. However, if thesocketAddressFromNetAddrfunction is updated to return an error, the call to this function withinprepareCheckHTTPRequestForGRPCwill need to be updated to handle the error.sdks/aperture-go/sdk/client.go (8)
3-13: The import paths for OpenTelemetry and gRPC have been updated, which is a common change when dependencies are updated or when the project structure changes. Ensure that the new paths are correct and that the project's dependency management tool (like Go modules) has been updated accordingly.
16-31: The
Optionsstruct has been updated to use theslog.Loggertype instead of the previous logger type. This change will require all instantiations ofOptionsto use the newslog.Loggertype. Ensure that all parts of the code that create anOptionsstruct have been updated accordingly.52-68: The
Clientinterface andapertureClientstruct have been updated to reflect the new logging and gRPC client types. Ensure that all implementations of theClientinterface and usages of theapertureClientstruct are updated to handle these changes.75-94: The
NewClientfunction has been updated to include an interceptor for gRPC connections that adds an API key to the metadata if provided. This is a security-sensitive change, so ensure that the API key is handled securely throughout the codebase and that it is not logged or exposed inappropriately.
[SECURITY]107-121: The
NewClientfunction now initializes a logger with a default configuration if one is not provided in theOptions. This is a good fallback mechanism to ensure that the client always has a logger available. However, ensure that the default logger's configuration is appropriate for the application's logging needs.140-155: The
StartFlowfunction has been updated to include label extraction and overriding logic. Ensure that the label extraction from the context and the explicit label overriding are working as intended and that they do not introduce any unexpected behavior.176-182: The
StartHTTPFlowfunction has been updated, and it now includes a span creation for tracing. Ensure that the span is correctly associated with the flow and that it is ended appropriately to avoid any memory leaks or incomplete traces.227-230: The
GetLoggermethod has been added to theapertureClientto expose the logger. This is a straightforward getter method and seems to be implemented correctly.
### Description of change - Add @fluxninja/aperture-js dependency in example - fix formatting in connected.ts and use_aperture.ts in example ##### Checklist - [ ] Tested in playground or other setup - [ ] Screenshot (Grafana) from playground added to PR for 15+ minute run - [ ] Documentation is changed or added - [ ] Tests and/or benchmarks are included - [ ] Breaking changes
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Actionable comments generated: 5
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Files ignored due to filter (2)
- sdks/aperture-js/example/package-lock.json
- sdks/aperture-js/example/package.json
Files selected for processing (8)
- sdks/aperture-go/sdk/middleware/grpc.go (3 hunks)
- sdks/aperture-js/.gitignore (1 hunks)
- sdks/aperture-js/Dockerfile (1 hunks)
- sdks/aperture-js/example/routes/connected.ts (1 hunks)
- sdks/aperture-js/example/routes/use_aperture.ts (2 hunks)
- sdks/aperture-js/sdk/cache.ts (1 hunks)
- sdks/aperture-js/sdk/client.ts (3 hunks)
- sdks/aperture-js/sdk/flow.ts (8 hunks)
Files skipped from review due to trivial changes (2)
- sdks/aperture-js/.gitignore
- sdks/aperture-js/Dockerfile
Additional comments: 9
sdks/aperture-js/sdk/client.ts (3)
20-25: The addition of
tryConnectandcacheKeyto theFlowParamsinterface aligns with the pull request's goal of introducing caching capabilities. These parameters should be documented to explain their usage and impact on theStartFlowfunction.104-108: The
resolveFlowfunction is updated to pass additional parameters to theFlowconstructor, includingparams.cacheKey. This change is consistent with the new caching mechanism. Ensure that theFlowconstructor and associated methods are updated to handle these new parameters correctly.123-132: The
CheckRequestobject now includescacheKeyas part of its structure, which is essential for the caching mechanism. The callbackcbis correctly updated to handle the response and error, passing them to theresolveFlowfunction. Ensure that theCheckRequestmessage definition in the gRPC service is updated to include thecacheKeyfield.sdks/aperture-js/example/routes/connected.ts (2)
7-10: The change introduces a space between the
res:andexpress.Responsewhich is a stylistic change and does not affect the functionality of the code. However, ensure that this change is consistent with the coding style guidelines of the project.9-10: The code is using a synchronous method
GetState()to check the client state. IfGetState()is a blocking call or if it performs any I/O, it might be more appropriate to handle it asynchronously, especially in a Node.js environment which is single-threaded and relies on non-blocking I/O to handle high concurrency. IfGetState()is indeed synchronous and does not perform I/O, then this is fine as is.sdks/aperture-js/example/routes/use_aperture.ts (2)
1-8: The configuration for the
ApertureClientis being set up with environment variables. Ensure that these environment variables are documented and that there are default values or error handling in place if they are not set.22-71: The route handler is well-structured with a
try...catch...finallyblock, which is good for error handling and resource management. However, there are a few points to consider:
- The
flowobject is being ended in thefinallyblock, which is good practice to ensure it is always cleaned up, but make sure that theEndmethod does not throw an exception that could be unhandled.- The
StartFlowmethod now includesrampModeandcacheKeyparameters. Ensure that these changes are reflected in the documentation and that all callers of this method are updated accordingly.- The cache operations (
SetCachedValueandDeleteCachedValue) are awaited, and errors are logged, but there is no further error handling. Depending on the application's requirements, you might want to handle these errors more gracefully or take specific actions.- The
labelsobject is hardcoded with a user value of "kenobi". If this is meant to be dynamic, it should be retrieved from the request or another source.- The
sleepfunction is used afterflow.ShouldRun()returns true. This simulates work being done and is fine for an example, but in a real application, this should be replaced with actual logic.sdks/aperture-go/sdk/middleware/grpc.go (2)
151-153: The request body is being marshaled to JSON without checking if it can be marshaled. If
reqcontains types that cannot be marshaled into JSON, this will result in an error. It's good practice to ensure that the types being passed tojson.Marshalare compatible or to handle potential errors in a way that doesn't disrupt the flow.107-176: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [174-192]
The
convertHTTPStatusToGRPCfunction maps HTTP status codes to gRPC codes. This is a good approach to maintain consistency between different protocols. However, ensure that this mapping aligns with the expected behavior of the gRPC services and clients that will interpret these codes.
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Actionable comments generated: 4
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Files selected for processing (2)
- sdks/aperture-go/sdk/middleware/grpc.go (3 hunks)
- sdks/aperture-go/sdk/middleware/http.go (2 hunks)
Additional comments: 1
sdks/aperture-go/sdk/middleware/http.go (1)
- 3-17: The import section is well-organized and follows the convention of grouping standard library imports together, followed by third-party packages. However, it's important to ensure that all imported packages are used within the file to avoid unnecessary imports which can lead to confusion and slightly increased compilation times.
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Files selected for processing (2)
- sdks/aperture-go/sdk/client.go (8 hunks)
- sdks/aperture-go/sdk/flow.go (2 hunks)
Additional comments: 15
sdks/aperture-go/sdk/flow.go (5)
16-28: The
Flowinterface has been updated to include new methods for caching. This change will require all implementations of theFlowinterface to provide these new methods. Ensure that all implementations are updated accordingly.41-51: The
newFlowfunction has been updated to accept additional parameters (flowControlClient,span,rampMode,cacheKey) and initialize a newflowstruct with these parameters. This change is likely part of the larger refactoring to support the new caching mechanism. Ensure that all calls tonewFloware updated to pass the correct arguments.57-61: The
ShouldRunmethod has been updated to consider therampModeand thecheckResponse'sDecisionType. This logic ensures that the flow should run either if the ramp mode is not enabled and there is no check response, or if the decision type isACCEPTED. This change seems to be a logical enhancement to the flow control mechanism.103-125: The
SetCachedValuemethod has been added to set a cached value with a specified TTL (time-to-live). It communicates with theflowControlClientto upsert the cache value. The response includes an error, response code, and message. Ensure that error handling is properly implemented in the calling code, as theErrorfield in the response struct is populated with the error returned from theCacheUpsertRPC call.134-152: The
DeleteCachedValuemethod has been added to delete a cached value. It also communicates with theflowControlClientto delete the cache value. Similar toSetCachedValue, ensure that error handling is properly implemented in the calling code.sdks/aperture-go/sdk/client.go (10)
3-13: The import paths have been updated, and the
slogpackage is now used for logging. Ensure that theslogpackage is properly integrated and that all logging calls have been updated accordingly.16-23: The import paths for the protobuf-generated code and utility packages have been updated to reflect the new version or location. Verify that these new paths are correct and that the packages are available at these locations.
25-31: The
Optionsstruct now includes a*slog.Loggerinstead of alogr.Logger. This change should be communicated to all users of theaperturepackage to update their code accordingly.47-51: New fields have been added to the
FlowParamsstruct, includingRampModeandCacheKey. Ensure that these new fields are being used correctly throughout the codebase and that their introduction does not break existing functionality.54-61: The
Clientinterface has been updated to return*slog.Loggerinstead oflogr.Loggerand to include new methods for starting flows with caching. Ensure that all implementations of this interface have been updated accordingly.77-96: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [72-96]
The
NewClientfunction has been updated to include new logic for setting up a gRPC connection with the Aperture service, including handling an API key for authentication. Ensure that the error handling is robust and that the connection is properly secured.
109-117: The logger setup now checks if a logger is provided in the options; if not, it defaults to a new
sloglogger with a specified name. Ensure that this default behavior is documented and that it aligns with the expected logging practices.142-165: The
StartFlowmethod has been updated to include new logic for handling cache keys and ramp mode. Ensure that the logic for merging labels from the context and theflowParamsis correct and that the cache key handling is secure and efficient.179-185: The
StartHTTPFlowmethod has been updated similarly toStartFlow. Ensure that the new logic for HTTP flows is consistent with the changes made to the standard flow logic and that it is properly tested.228-233: A new method
GetLoggerhas been added to theapertureClientstruct to retrieve the logger. Ensure that this method is necessary and that it is being used appropriately where logging is required.
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Actionable comments generated: 2
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Files ignored due to filter (1)
- docs/content/assets/openapiv2/aperture.swagger.yaml
Files selected for processing (2)
- pkg/policies/flowcontrol/service/check/check.go (3 hunks)
- pkg/policies/flowcontrol/service/check/provide.go (1 hunks)
Additional comments: 4
pkg/policies/flowcontrol/service/check/provide.go (2)
36-39: The addition of the
Cachefield to theConstructorInstruct is consistent with the pull request's goal of introducing caching capabilities. However, it's marked as optional withoptional:"true". Ensure that the rest of the codebase can handle cases whereCacheis not provided, to avoid nil pointer dereferences.46-46: The
NewHandlerfunction is correctly updated to accept the newCacheparameter. This change aligns with the introduction of caching capabilities. Ensure that theNewHandlerfunction's implementation is updated accordingly to handle theCacheparameter.pkg/policies/flowcontrol/service/check/check.go (2)
23-41: The addition of the
cachefield to theHandlerstruct and its initialization in theNewHandlerfunction is consistent with the pull request's goal of introducing a caching mechanism. Ensure that all instances whereHandleris instantiated are updated to provide the newcacheargument.77-83: The
Checkmethod now includesCacheKeyin theRequestContext. This is a necessary change for the caching mechanism to work. Ensure that theCacheKeyis being generated and used correctly throughout the system.
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Actionable comments generated: 10
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Files ignored due to filter (24)
- api/gen/proto/go/aperture/flowcontrol/check/v1/check.pb.go
- api/gen/proto/go/aperture/flowcontrol/check/v1/check.pb.validate.go
- api/gen/proto/go/aperture/flowcontrol/check/v1/check_vtproto.pb.go
- docs/content/assets/openapiv2/aperture.swagger.yaml
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check.pb.go
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check.pb.validate.go
- sdks/aperture-go/gen/proto/flowcontrol/check/v1/check_vtproto.pb.go
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheDeleteResponse.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheDeleteResponseOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheLookupStatus.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheOperationStatus.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheUpsertResponse.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CacheUpsertResponseOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CachedValue.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CachedValueOrBuilder.java
- sdks/aperture-java/lib/core/src/main/java/com/fluxninja/generated/aperture/flowcontrol/check/v1/CheckProto.java
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheDeleteResponse.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheLookupStatus.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheOperationStatus.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CacheUpsertResponse.ts
- sdks/aperture-js/sdk/gen/aperture/flowcontrol/check/v1/CachedValue.ts
- sdks/aperture-js/sdk/gen/check.ts
- sdks/aperture-py/aperture_sdk/_gen/aperture/flowcontrol/check/v1/check_pb2.py
- sdks/aperture-py/aperture_sdk/_gen/aperture/flowcontrol/check/v1/check_pb2.pyi
Files selected for processing (10)
- api/aperture/flowcontrol/check/v1/check.proto (2 hunks)
- pkg/policies/flowcontrol/engine.go (4 hunks)
- pkg/policies/flowcontrol/service/check/check.go (3 hunks)
- sdks/aperture-csharp/Generated/Aperture/Flowcontrol/V1/Check.cs (26 hunks)
- sdks/aperture-csharp/Generated/Aperture/Flowcontrol/V1/CheckGrpc.cs (6 hunks)
- sdks/aperture-go/sdk/cache.go (1 hunks)
- sdks/aperture-go/sdk/flow.go (2 hunks)
- sdks/aperture-js/proto/flowcontrol/check/v1/check.proto (2 hunks)
- sdks/aperture-js/sdk/cache.ts (1 hunks)
- sdks/aperture-js/sdk/flow.ts (7 hunks)
Files not summarized due to errors (1)
- sdks/aperture-csharp/Generated/Aperture/Flowcontrol/V1/Check.cs: Error: Message exceeds token limit
Additional comments: 45
sdks/aperture-csharp/Generated/Aperture/Flowcontrol/V1/CheckGrpc.cs (6)
52-62: The marshaller definitions for the new cache operations (
CacheUpsertRequest,CacheUpsertResponse,CacheDeleteRequest,CacheDeleteResponse) have been correctly added. This is necessary for the gRPC framework to serialize and deserialize the messages for these operations.69-90: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [65-86]
The method definitions for the new RPCs (
CacheUpsert,CacheDelete) have been added with the correct marshaller references. This aligns with the changes described in the pull request summary and is essential for enabling the new cache operations in theFlowControlService.
107-120: The base service implementation provides the expected behavior for unimplemented methods by throwing an
RpcExceptionwithStatusCode.Unimplemented. This is a standard practice in gRPC service definitions to provide a clear error when a method is not implemented.196-238: The client methods for the new cache operations (
CacheUpsert,CacheUpsertAsync,CacheDelete,CacheDeleteAsync) have been implemented correctly, providing both synchronous and asynchronous options. This allows clients to interact with the new cache operations using theFlowControlServiceClient.250-255: The
BindServicemethod has been updated to include the new cache operation methods. This is necessary for the server to recognize and handle incoming RPC calls for these operations.263-267: The
BindServicemethod has been correctly updated to bind the new cache operation methods. This ensures that the service implementation can be registered with the gRPC server with the new functionality.sdks/aperture-go/sdk/cache.go (1)
- 1-163: The code introduces new types and functions for handling cache operations in the Go SDK. It includes error handling, status conversion, and response interfaces for get, set, and delete cache operations. The code is well-structured and follows Go conventions for error variables and custom types. However, there are a few points to consider:
- The default cases in
convertCacheLookupStatusandconvertCacheOperationStatusfunctions (lines 39 and 51) returnLookupStatusMissandOperationStatusError, respectively. This is a safe default, but it might be worth logging or handling the unexpected status to aid in debugging if an unknown status is ever encountered.- The
convertCacheErrorfunction (lines 56-63) converts a string error message to an error type, which is a simple and effective way to handle error messages from the cache operations. However, it's important to ensure that the error messages are meaningful and provide enough context for troubleshooting.- The response structs (
getCachedValueResponse,setCachedValueResponse,deleteCachedValueResponse) and their corresponding interfaces (GetCachedValueResponse,SetCachedValueResponse,DeleteCachedValueResponse) are well-defined and encapsulate the response data effectively. It's good practice to define interfaces for responses as it allows for easier testing and mocking.- The
newGetCachedValueResponse,newSetCachedValueResponse, andnewDeleteCachedValueResponsefunctions (lines 142-162) are factory functions that create instances of the response structs. This pattern is useful for encapsulating the creation logic and providing a clean API for creating response objects.Overall, the code is well-written and follows good practices. Just ensure that the rest of the system is prepared to handle the new error types and statuses introduced here.
sdks/aperture-js/proto/flowcontrol/check/v1/check.proto (8)
9-14: The addition of
CacheUpsertandCacheDeleteRPCs to theFlowControlServiceis a significant change. Ensure that the corresponding server-side implementations are updated to handle these new RPCs and that the client-side SDKs are also updated to expose these functionalities to the end-users.22-22: The addition of
cache_keyto theCheckRequestmessage implies that caching logic is now part of the flow control check process. It's important to ensure that the caching mechanism is robust and that cache keys are generated in a consistent and collision-resistant manner. Additionally, consider the implications of cache key enumeration and potential security concerns around cache poisoning.67-71: The
CachedValuemessage is included in theCheckResponse, which suggests that the response can contain cached results. This is a performance optimization but also introduces complexity in terms of cache consistency and invalidation. Ensure that the caching strategy is well-documented and that clients are aware of how to interpret and handle cached responses.74-77: The
CacheLookupStatusenum is introduced to indicate the result of a cache lookup. Ensure that the client and server logic correctly interpret these statuses and handle them appropriately, especially in edge cases where a cache miss might occur.79-82: The
CacheOperationStatusenum is used to represent the outcome of cache operations. It's crucial to ensure that error handling is robust and that any operation errors are communicated clearly to the client to prevent any misinterpretation of the cache state.84-88: The
CachedValuemessage includes anoperation_statusand anerrorstring. It's important to ensure that the error messages are descriptive and actionable. Additionally, consider if there are any security implications of exposing raw error messages to clients, as they might leak implementation details or sensitive information.91-95: The
CacheUpsertRequestmessage allows clients to insert or update cache entries. Ensure that there are appropriate access controls and validation in place to prevent unauthorized cache manipulation, which could lead to security vulnerabilities such as cache poisoning.103-105: The
CacheDeleteRequestmessage enables clients to delete cache entries. Similar to theCacheUpsertRequest, ensure that proper access controls are in place to prevent unauthorized deletion of cache entries.pkg/policies/flowcontrol/service/check/check.go (3)
23-42: The
Handlerstruct andNewHandlerfunction have been correctly updated to include the newcachefield and parameter. This change aligns with the pull request's goal of introducing caching capabilities to the FlowControlService. Ensure that all instantiations ofHandlerthroughout the codebase are updated to provide the newcacheargument.77-83: The
Checkmethod has been updated to includeCacheKeyin theRequestContext. This is necessary for the caching functionality. However, ensure that theCacheKeyis being properly generated and used elsewhere in the system to avoid potential cache collisions or misuse.88-89: The addition of the
ApertureControlPointTypeLabeltoTelemetryFlowLabelsis a good practice for observability and telemetry. This change should help in monitoring and debugging the flow control decisions.pkg/policies/flowcontrol/engine.go (4)
73-76: The
cachefield has been added to theEnginestruct to support caching. Ensure that theRegisterCachemethod is called to initialize this field before theEngineis used to process requests, as theProcessRequestmethod assumes the cache is non-nil when acacheKeyis provided. This is crucial to avoid potential nil pointer dereferences.87-90: The introduction of
cacheKeyas a local variable in theProcessRequestfunction is a significant change. It is important to ensure that theRequestContextstruct now includes aCacheKeyfield and that it is being correctly populated upstream. If the cache key is not correctly generated or passed, the caching functionality will not work as intended.123-161: The refactoring of the logic for running limiters into a separate function
runLimitersis a good practice for code maintainability and readability. However, ensure that therunLimitersfunction is thoroughly tested, especially since it involves concurrency and could potentially introduce race conditions or deadlocks if not handled correctly.173-194: The cache lookup logic has been added to the
ProcessRequestfunction. It is important to handle errors from the cache appropriately. The current implementation logs a cache miss and any errors encountered during the cache lookup. Ensure that the error handling aligns with the overall application's error handling strategy and that any cache-related errors do not impact the critical path of request processing.sdks/aperture-js/sdk/cache.ts (4)
4-7: The
LookupStatusenum is well-defined and aligns with the expected cache lookup statuses.22-25: The
OperationStatusenum is well-defined and aligns with the expected operation statuses for cache operations.40-47: The
ConvertCacheErrorfunction is a simple and effective way to convert a string error message into anErrorobject, handlingnullandundefinedappropriately.49-82: The
CachedValueResponseclass is well-structured and provides clear methods for accessing the properties of a cached value response. The use ofBufferfor the value suggests binary data handling, which is appropriate for cache values.sdks/aperture-js/sdk/flow.ts (4)
- 1-16: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [1-30]
The imports are well-organized and grouped by their functionality, which is good for maintainability. However, it's important to ensure that all these imports are used within the file to avoid unnecessary overhead.
41-53: The constructor of the
Flowclass has been updated to accept additional parameters for cache operations. This change aligns with the pull request's goal to introduce caching capabilities. Ensure that all instantiations of theFlowclass are updated to pass the correct arguments.142-162: The
CachedValuemethod creates a newCachedValueResponseobject based on the presence of an error or the cached value from thecheckResponse. This method does not seem to be asynchronous, but it should be verified that the consumers of this method are not expecting a promise.209-223: > Note: This review was outside of the patch, so it was mapped to the patch with the greatest overlap. Original lines [185-221]
The
Endmethod has been updated to handle cache responses. It includes a workaround for a known issue with the protobufjs library regarding timestamp formatting. This is a good example of defensive programming, but it's important to track the resolution of the linked issue and remove the workaround once it's no longer necessary.api/aperture/flowcontrol/check/v1/check.proto (8)
9-14: The addition of
CacheUpsertandCacheDeleteRPCs to theFlowControlServiceis a significant change. Ensure that the corresponding server-side implementations are secure, efficient, and handle errors gracefully. Also, verify that the client-side SDKs are updated to support these new RPCs.17-23: The
CheckRequestmessage now includes acache_keyfield. Ensure that the logic for generating and validating cache keys is robust and secure against potential cache poisoning attacks. Additionally, verify that all clients of this service are updated to handle the newcache_keyfield appropriately.67-71: The
CheckResponsemessage now includes acached_valuefield. It is important to ensure that the caching logic correctly populates this field and that the clients properly handle the cached responses. Also, consider the implications of exposing cache details to the clients and whether this aligns with the intended design and security posture.74-77: The
CacheLookupStatusenum is introduced to indicate cache hit or miss. Ensure that the service correctly sets this status in responses and that clients handle each status as expected.79-82: The
CacheOperationStatusenum is introduced to indicate the success or error of a cache operation. It is crucial to ensure that error handling is consistent and informative, providing enough detail for clients to react appropriately to errors.84-89: The
CachedValuemessage includes anerrorfield. It is important to ensure that error messages do not leak sensitive information and are sanitized before being sent to clients. Additionally, verify that the error messages are clear and actionable for the clients.91-95: In the
CacheUpsertRequestmessage, ensure that the TTL (Time To Live) for cache entries is being validated and that there are safeguards against setting excessively long or short TTL values, which could lead to cache inefficiency or denial of service.98-100: The
CacheUpsertResponseandCacheDeleteResponsemessages include anoperation_statusand anerrorfield. Ensure that the service implementation correctly maps internal errors to these fields and that the error messages are consistent and do not expose internal details unnecessarily.sdks/aperture-go/sdk/flow.go (7)
3-14: The import section has been updated correctly to include the necessary packages for the new functionality. The
contextpackage is essential for passing request-scoped values, cancellation signals, and deadlines, while thegoogle.golang.org/protobuf/types/known/durationpbpackage is used for handling protocol buffer duration types. The update to the import path forcheckprotoreflects the new versioning scheme, which is a good practice for maintaining backward compatibility.16-28: The
Flowinterface has been updated to include new methods for caching (CachedValue,SetCachedValue, andDeleteCachedValue). This change aligns with the pull request's goal of introducing caching capabilities. However, it's important to ensure that all implementations of theFlowinterface are updated to include these new methods to maintain compatibility.41-51: The
newFlowfunction has been updated to accept additional parametersflowControlClientandcacheKey, which are necessary for the new caching functionality. The function initializes aflowstruct with these new fields. This is a good practice as it encapsulates the creation logic and sets sensible defaults.75-88: The
CachedValuemethod correctly handles various error scenarios, such as whenf.erris not nil or whenf.checkResponseor itsCachedValueis nil. It returns aGetCachedValueResponsewith appropriate status and error information. This is a good example of defensive programming, ensuring that the method behaves predictably even in error conditions.91-110: The
SetCachedValuemethod performs a cache upsert operation using theflowControlClient. It correctly converts thettlto a protobuf duration and handles errors by returning aSetCachedValueResponsewith the appropriate status and error. This method should be reviewed to ensure that theCacheUpsertRPC is implemented correctly on the server side and that theflowControlClientis properly initialized and capable of handling the RPC call.112-127: The
DeleteCachedValuemethod performs a cache delete operation and handles errors similarly to theSetCachedValuemethod. It is important to verify that theCacheDeleteRPC is also correctly implemented on the server side and that theflowControlClientis set up to handle this call.129-131: The
Errormethod simply returns the error that occurred during the flow, which is a straightforward getter. This is a standard practice for exposing errors to the caller.
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
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- sdks/aperture-js/example/routes/connected.ts (1 hunks)
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- sdks/aperture-js/example/routes/connected.ts
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- sdks/aperture-go/sdk/flow.go (2 hunks)
Additional comments: 8
sdks/aperture-go/sdk/flow.go (8)
3-14: The import of the
durationpbpackage is correct and necessary for the new caching functionality that uses time durations. However, ensure that theerrorspackage is still required after the changes, as it is not explicitly used in the provided code snippet.16-28: The
Flowinterface has been updated to include new methods for caching. This is a significant change and should be communicated to all users of the SDK to update their implementations accordingly. The new methodsCachedValue,SetCachedValue, andDeleteCachedValueneed to be documented to explain their usage and expected behavior.30-51: The
flowstruct now includes acacheKeyfield, which is essential for the new caching functionality. Ensure that all instances offloware initialized with a validcacheKeywhere necessary, or handle cases wherecacheKeymight be an empty string to avoid runtime errors.54-58: The
ShouldRunmethod's logic has been updated to account for therampMode. This change affects the fail-open behavior and should be clearly documented in the SDK's usage guide. Users need to be aware of howrampModeinfluences the decision-making process.71-84: The
CachedValuemethod retrieves the cached value from thecheckResponse. It is important to ensure that thecheckResponseis notnilbefore accessing its properties to avoid a nil pointer dereference. The error handling here is good practice, as it provides clear error messages for different failure scenarios.87-106: The
SetCachedValuemethod correctly converts the TTL to a protobuf duration and makes a gRPC call to set the cached value. It is important to handle the case wherecacheKeyis empty to prevent unnecessary gRPC calls. The error handling and conversion of operation status are well-implemented.108-123: The
DeleteCachedValuemethod follows a similar pattern toSetCachedValue, including error handling and status conversion. It is crucial to ensure that thecacheKeyis not empty before attempting to delete the cached value.125-127: The
Errormethod returns the error that occurred during the flow. This is a simple getter method and is implemented correctly.
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