-
Notifications
You must be signed in to change notification settings - Fork 57
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #359 from blair55/add-aws-lambda-support
Add aws lambda support
- Loading branch information
Showing
6 changed files
with
232 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
||
| <PropertyGroup> | ||
| <TargetFramework>net5.0</TargetFramework> | ||
| <Description>AWS Lambda-Fable adapter that generates routes for shared server spec with a Fable client. Client must use Fable.Remoting.Client</Description> | ||
| <PackageProjectUrl>https://github.com/Zaid-Ajaj/Fable.Remoting</PackageProjectUrl> | ||
| <RepositoryUrl>https://github.com/Zaid-Ajaj/Fable.Remoting.git</RepositoryUrl> | ||
| <PackageLicenseUrl>https://github.com/Zaid-Ajaj/Fable.Remoting/blob/master/LICENSE</PackageLicenseUrl> | ||
| <PackageIconUrl></PackageIconUrl> | ||
| <PackageTags>fsharp;fable;remoting;rpc;webserver;serverless;azure functions</PackageTags> | ||
| <Authors>Zaid Ajaj;Roman Provaznik</Authors> | ||
| <Version>1.11.0</Version> | ||
| <GenerateDocumentationFile>true</GenerateDocumentationFile> | ||
| <PackageReleaseNotes>Update Microsoft.IO.RecyclableMemoryStream to v3.0</PackageReleaseNotes> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <Compile Include="FableLambdaAdapter.fs" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <ProjectReference Include="..\Fable.Remoting.Server\Fable.Remoting.Server.fsproj" /> | ||
| </ItemGroup> | ||
| <Import Project="..\.paket\Paket.Restore.targets" /> | ||
|
|
||
| </Project> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| namespace Fable.Remoting.AwsLambda.Worker | ||
|
|
||
| open System | ||
| open System.Net | ||
| open System.Text | ||
| open System.Threading.Tasks | ||
| open System.IO | ||
| open Fable.Remoting.Server | ||
| open Fable.Remoting.Server.Proxy | ||
| open Amazon.Lambda.APIGatewayEvents | ||
| open Newtonsoft.Json | ||
|
|
||
| type HttpRequestData = APIGatewayHttpApiV2ProxyRequest | ||
| type HttpResponseData = APIGatewayHttpApiV2ProxyResponse | ||
|
|
||
| module private FuncsUtil = | ||
|
|
||
| let private htmlString (html: string) (req: HttpRequestData) : Task<HttpResponseData option> = | ||
| task { | ||
| let resp = HttpResponseData(StatusCode = int HttpStatusCode.OK, Body = html) | ||
| resp.SetHeaderValues("Content-Type", "text/html; charset=utf-8", false) | ||
|
|
||
| return Some resp | ||
| } | ||
|
|
||
| let text (str: string) (req: HttpRequestData) : Task<HttpResponseData option> = | ||
| task { | ||
| let resp = HttpResponseData(StatusCode = int HttpStatusCode.OK, Body = str) | ||
| resp.SetHeaderValues("Content-Type", "text/plain; charset=utf-8", false) | ||
| return Some resp | ||
| } | ||
|
|
||
| let private path (r: HttpRequestData) = r.RawPath | ||
|
|
||
| let setJsonBody | ||
| (res: HttpResponseData) | ||
| (response: obj) | ||
| (logger: Option<string -> unit>) | ||
| (req: HttpRequestData) | ||
| : Task<HttpResponseData option> = | ||
| task { | ||
| use ms = new MemoryStream() | ||
| jsonSerialize response ms | ||
| let responseBody = System.Text.Encoding.UTF8.GetString(ms.ToArray()) | ||
| Diagnostics.outputPhase logger responseBody | ||
| res.SetHeaderValues("Content-Type", "application/json; charset=utf-8", false) | ||
| res.Body <- responseBody | ||
| return Some res | ||
| } | ||
|
|
||
| /// Handles thrown exceptions | ||
| let fail | ||
| (ex: exn) | ||
| (routeInfo: RouteInfo<HttpRequestData>) | ||
| (options: RemotingOptions<HttpRequestData, 't>) | ||
| (req: HttpRequestData) | ||
| : Task<HttpResponseData option> = | ||
| let resp = HttpResponseData(StatusCode = int HttpStatusCode.InternalServerError) | ||
| let logger = options.DiagnosticsLogger | ||
|
|
||
| match options.ErrorHandler with | ||
| | None -> setJsonBody resp (Errors.unhandled routeInfo.methodName) logger req | ||
| | Some errorHandler -> | ||
| match errorHandler ex routeInfo with | ||
| | Ignore -> setJsonBody resp (Errors.ignored routeInfo.methodName) logger req | ||
| | Propagate error -> setJsonBody resp (Errors.propagated error) logger req | ||
|
|
||
| let halt: HttpResponseData option = None | ||
|
|
||
| let buildFromImplementation<'impl> | ||
| (implBuilder: HttpRequestData -> 'impl) | ||
| (options: RemotingOptions<HttpRequestData, 'impl>) | ||
| = | ||
| let proxy = makeApiProxy options | ||
|
|
||
| let rmsManager = | ||
| options.RmsManager | ||
| |> Option.defaultWith (fun _ -> recyclableMemoryStreamManager.Value) | ||
|
|
||
| fun (req: HttpRequestData) -> | ||
| task { | ||
| let isProxyHeaderPresent = req.Headers.Keys.Contains "x-remoting-proxy" | ||
| use output = rmsManager.GetStream "remoting-output-stream" | ||
|
|
||
| let isBinaryEncoded = | ||
| match req.Headers.TryGetValue "Content-Type" with | ||
| | true, "application/octet-stream" -> true | ||
| | _ -> false | ||
|
|
||
| let bodyAsStream = | ||
| if String.IsNullOrEmpty req.Body then | ||
| new MemoryStream() | ||
| else | ||
| new MemoryStream(Encoding.UTF8.GetBytes(req.Body)) | ||
|
|
||
| let props = | ||
| { ImplementationBuilder = (fun () -> implBuilder req) | ||
| EndpointName = path req | ||
| Input = bodyAsStream | ||
| IsProxyHeaderPresent = isProxyHeaderPresent | ||
| HttpVerb = req.RequestContext.Http.Method.ToUpper() | ||
| IsContentBinaryEncoded = isBinaryEncoded | ||
| Output = output } | ||
|
|
||
| match! proxy props with | ||
| | Success isBinaryOutput -> | ||
| let resp = HttpResponseData(StatusCode = int HttpStatusCode.OK) | ||
|
|
||
| if isBinaryOutput && isProxyHeaderPresent then | ||
| resp.SetHeaderValues("Content-Type", "application/octet-stream", false) | ||
| elif options.ResponseSerialization = SerializationType.Json then | ||
| resp.SetHeaderValues("Content-Type", "application/json; charset=utf-8", false) | ||
| else | ||
| resp.SetHeaderValues("Content-Type", "application/msgpack", false) | ||
|
|
||
| let result = Encoding.UTF8.GetString(output.ToArray()) | ||
| resp.Body <- result | ||
|
|
||
| return Some resp | ||
| | Exception(e, functionName, requestBodyText) -> | ||
| let routeInfo = | ||
| { methodName = functionName | ||
| path = path req | ||
| httpContext = req | ||
| requestBodyText = requestBodyText } | ||
|
|
||
| return! fail e routeInfo options req | ||
| | InvalidHttpVerb -> return halt | ||
| | EndpointNotFound -> | ||
| match req.RequestContext.Http.Method.ToUpper(), options.Docs with | ||
| | "GET", (Some docsUrl, Some docs) when docsUrl = (path req) -> | ||
| let (Documentation(docsName, docsRoutes)) = docs | ||
| let schema = Docs.makeDocsSchema typeof<'impl> docs options.RouteBuilder | ||
| let docsApp = DocsApp.embedded docsName docsUrl schema | ||
| return! htmlString docsApp req | ||
| | "OPTIONS", (Some docsUrl, Some docs) when | ||
| sprintf "/%s/$schema" docsUrl = (path req) | ||
| || sprintf "%s/$schema" docsUrl = (path req) | ||
| -> | ||
| let schema = Docs.makeDocsSchema typeof<'impl> docs options.RouteBuilder | ||
| let serializedSchema = schema.ToString(Formatting.None) | ||
| return! text serializedSchema req | ||
| | _ -> return halt | ||
| } | ||
|
|
||
| module Remoting = | ||
|
|
||
| /// Builds a HttpRequestData -> HttpResponseData option function from the given implementation and options | ||
| /// Please see HttpResponseData.fromRequestHandler for using output of this function | ||
| let buildRequestHandler (options: RemotingOptions<HttpRequestData, 't>) = | ||
| match options.Implementation with | ||
| | StaticValue impl -> FuncsUtil.buildFromImplementation (fun _ -> impl) options | ||
| | FromContext createImplementationFrom -> FuncsUtil.buildFromImplementation createImplementationFrom options | ||
| | Empty -> fun _ -> Task.FromResult None | ||
|
|
||
| module FunctionsRouteBuilder = | ||
| /// Default RouteBuilder for Azure Functions running HttpTrigger on /api prefix | ||
| let apiPrefix = sprintf "/api/%s/%s" | ||
| /// RouteBuilder for Azure Functions running HttpTrigger without any prefix | ||
| let noPrefix = sprintf "/%s/%s" | ||
|
|
||
| module HttpResponseData = | ||
|
|
||
| /// Build HttpResponseData from single builder function and HttpRequestData | ||
| let fromRequestHandler | ||
| (req: HttpRequestData) | ||
| (fn: HttpRequestData -> Task<HttpResponseData option>) | ||
| : Task<HttpResponseData> = | ||
| task { | ||
| match! fn req with | ||
| | Some r -> return r | ||
| | None -> return HttpResponseData(StatusCode = int HttpStatusCode.NotFound, Body = "") | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| group AwsLambda | ||
|
|
||
| FSharp.Core | ||
| Amazon.Lambda.APIGatewayEvents |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters