💥 prefer constant union over enum in APIs

reasoning: make APIs easier to use with TypeScript by using directly constants instead of importing our enums
DataDog · Nov 23, 2020 · 3c1c9c4 · 3c1c9c4
1 parent cdf9af0
commit 3c1c9c4
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Showing 6 changed files with 15 additions and 23 deletions.
diff --git a/packages/core/src/domain/configuration.ts b/packages/core/src/domain/configuration.ts
@@ -44,7 +44,7 @@ export interface UserConfiguration {
   allowedTracingOrigins?: Array<string | RegExp>
   sampleRate?: number
   resourceSampleRate?: number
-  datacenter?: Datacenter // deprecated
+  datacenter?: 'us' | 'eu' // deprecated
   site?: string
   enableExperimentalFeatures?: string[]
   silentMultipleInit?: boolean

diff --git a/packages/logs/src/boot/logs.entry.ts b/packages/logs/src/boot/logs.entry.ts
@@ -19,13 +19,11 @@ export interface LogsUserConfiguration extends UserConfiguration {
 }
 
 export interface LoggerConfiguration {
-  level?: StatusType
-  handler?: HandlerType
+  level?: 'debug' | 'info' | 'warn' | 'error'
+  handler?: 'http' | 'console' | 'silent'
   context?: Context
 }
 
-export type Status = keyof typeof StatusType
-
 export type LogsGlobal = ReturnType<typeof makeLogsGlobal>
 
 export const datadogLogs = makeLogsGlobal(startLogs)
@@ -77,7 +75,7 @@ export function makeLogsGlobal(startLogsImpl: StartLogs) {
     removeLoggerGlobalContext: monitor(globalContextManager.remove),
 
     createLogger: monitor((name: string, conf: LoggerConfiguration = {}) => {
-      customLoggers[name] = new Logger(sendLog, conf.handler, conf.level, {
+      customLoggers[name] = new Logger(sendLog, conf.handler as HandlerType, conf.level as StatusType, {
         ...conf.context,
         logger: { name },
       })

diff --git a/packages/logs/src/domain/logger.ts b/packages/logs/src/domain/logger.ts
@@ -7,7 +7,7 @@ export enum StatusType {
   error = 'error',
 }
 
-export const STATUS_PRIORITIES: { [key in StatusType]: number } = {
+const STATUS_PRIORITIES: { [key in StatusType]: number } = {
   [StatusType.debug]: 0,
   [StatusType.info]: 1,
   [StatusType.warn]: 2,
@@ -41,13 +41,13 @@ export class Logger {
   }
 
   @monitored
-  log(message: string, messageContext?: Context, status = StatusType.info) {
+  log(message: string, messageContext?: Context, status: 'debug' | 'info' | 'warn' | 'error' = 'info') {
     if (STATUS_PRIORITIES[status] >= STATUS_PRIORITIES[this.level]) {
       switch (this.handlerType) {
         case HandlerType.http:
           this.sendLog({
             message,
-            status,
+            status: status as StatusType,
             ...combine(this.contextManager.get(), messageContext),
           })
           break
@@ -93,11 +93,11 @@ export class Logger {
     this.contextManager.remove(key)
   }
 
-  setHandler(handler: HandlerType) {
-    this.handlerType = handler
+  setHandler(handler: 'http' | 'console' | 'silent') {
+    this.handlerType = handler as HandlerType
   }
 
-  setLevel(level: StatusType) {
-    this.level = level
+  setLevel(level: 'debug' | 'info' | 'warn' | 'error') {
+    this.level = level as StatusType
   }
 }
diff --git a/packages/logs/src/index.ts b/packages/logs/src/index.ts
@@ -1,3 +1,2 @@
-export { Datacenter } from '@datadog/browser-core'
-export { StatusType, HandlerType, Logger, LogsMessage } from './domain/logger'
-export { LogsUserConfiguration, Status, LoggerConfiguration, LogsGlobal, datadogLogs } from './boot/logs.entry'
+export { Logger, LogsMessage } from './domain/logger'
+export { LogsUserConfiguration, LoggerConfiguration, LogsGlobal, datadogLogs } from './boot/logs.entry'
diff --git a/packages/rum/src/boot/rum.entry.ts b/packages/rum/src/boot/rum.entry.ts
@@ -105,14 +105,10 @@ export function makeRumGlobal(startRumImpl: StartRum) {
     },
 
     addError: monitor(
-      (
-        error: unknown,
-        context?: Context,
-        source: ErrorSource.CUSTOM | ErrorSource.NETWORK | ErrorSource.SOURCE = ErrorSource.CUSTOM
-      ) => {
+      (error: unknown, context?: Context, source: 'custom' | 'network' | 'source' = ErrorSource.CUSTOM) => {
         let checkedSource
         if (source === ErrorSource.CUSTOM || source === ErrorSource.NETWORK || source === ErrorSource.SOURCE) {
-          checkedSource = source
+          checkedSource = source as ErrorSource
         } else {
           console.error(`DD_RUM.addError: Invalid source '${source}'`)
           checkedSource = ErrorSource.CUSTOM

diff --git a/packages/rum/src/index.ts b/packages/rum/src/index.ts
@@ -1,2 +1 @@
-export { Datacenter, ErrorSource } from '@datadog/browser-core'
 export { RumUserConfiguration, RumGlobal, datadogRum } from './boot/rum.entry'