feat(instrumentation-http)!: reduce public API surface by removing exports and making protected methods private

experimental/CHANGELOG.md

@@ -7,6 +7,41 @@ All notable changes to experimental packages in this project will be documented
 
 ### :boom: Breaking Change
 
+* feat(instrumentation-http)!: reduce public API surface by removing exports and making protected methods private [#5124](https://github.com/open-telemetry/opentelemetry-js/pull/5124) @pichlermarc
+  * (user-facing) the following exports were intended for internal use only and have been removed without replacement
+    * extractHostnameAndPort
+    * getAbsoluteUrl
+    * getIncomingRequestAttributes
+    * getIncomingRequestAttributesOnResponse
+    * getIncomingRequestMetricAttributes
+    * getIncomingRequestMetricAttributesOnResponse
+    * getOutgoingRequestAttributes
+    * getOutgoingRequestAttributesOnResponse
+    * getOutgoingRequestMetricAttributes
+    * getOutgoingRequestMetricAttributesOnResponse
+    * getRequestInfo
+    * headerCapture
+    * isCompressed
+    * isValidOptionsType
+    * parseResponseStatus
+    * satisfiesPattern
+    * setAttributesFromHttpKind
+    * setRequestContentLengthAttribute
+    * setResponseContentLengthAttribute
+    * setSpanWithError
+    * RequestSignature
+    * RequestFunction
+    * ParsedRequestOptions
+    * IgnoreMatcher
+    * Https
+    * HttpRequestArgs
+    * HttpCallbackOptional
+    * HttpCallback
+    * Http
+    * GetFunction
+    * Func
+    * Err
+
 ### :rocket: (Enhancement)
 
 ### :bug: (Bug Fix)

experimental/packages/opentelemetry-instrumentation-http/src/http.ts

@@ -40,15 +40,7 @@ import type * as https from 'https';
 import { Socket } from 'net';
 import * as semver from 'semver';
 import * as url from 'url';
-import {
-  Err,
-  Func,
-  Http,
-  HttpInstrumentationConfig,
-  HttpRequestArgs,
-  Https,
-  SemconvStability,
-} from './types';
+import { HttpInstrumentationConfig } from './types';
 import { VERSION } from './version';
 import {
   InstrumentationBase,
@@ -90,6 +82,14 @@ import {
   parseResponseStatus,
   setSpanWithError,
 } from './utils';
+import {
+  Err,
+  Func,
+  Http,
+  HttpRequestArgs,
+  Https,
+  SemconvStability,
+} from './internal-types';
 
 /**
  * `node:http` and `node:https` instrumentation for OpenTelemetry
@@ -326,7 +326,7 @@ export class HttpInstrumentation extends InstrumentationBase<HttpInstrumentation
   /**
    * Creates spans for incoming requests, restoring spans' context if applied.
    */
-  protected _getPatchIncomingRequestFunction(component: 'http' | 'https') {
+  private _getPatchIncomingRequestFunction(component: 'http' | 'https') {
     return (
       original: (event: string, ...args: unknown[]) => boolean
     ): ((this: unknown, event: string, ...args: unknown[]) => boolean) => {
@@ -338,13 +338,13 @@ export class HttpInstrumentation extends InstrumentationBase<HttpInstrumentation
    * Creates spans for outgoing requests, sending spans' context for distributed
    * tracing.
    */
-  protected _getPatchOutgoingRequestFunction(component: 'http' | 'https') {
+  private _getPatchOutgoingRequestFunction(component: 'http' | 'https') {
     return (original: Func<http.ClientRequest>): Func<http.ClientRequest> => {
       return this._outgoingRequestFunction(component, original);
     };
   }
 
-  protected _getPatchOutgoingGetFunction(
+  private _getPatchOutgoingGetFunction(
     clientRequest: (
       options: http.RequestOptions | string | url.URL,
       ...args: HttpRequestArgs

experimental/packages/opentelemetry-instrumentation-http/src/index.ts

@@ -16,46 +16,12 @@
 
 export { HttpInstrumentation } from './http';
 export {
-  Err,
-  Func,
-  GetFunction,
-  Http,
-  HttpCallback,
-  HttpCallbackOptional,
   HttpCustomAttributeFunction,
   HttpInstrumentationConfig,
-  HttpRequestArgs,
   HttpRequestCustomAttributeFunction,
   HttpResponseCustomAttributeFunction,
-  Https,
   IgnoreIncomingRequestFunction,
-  IgnoreMatcher,
   IgnoreOutgoingRequestFunction,
-  ParsedRequestOptions,
-  RequestFunction,
-  RequestSignature,
   StartIncomingSpanCustomAttributeFunction,
   StartOutgoingSpanCustomAttributeFunction,
 } from './types';
-export {
-  extractHostnameAndPort,
-  getAbsoluteUrl,
-  getIncomingRequestAttributes,
-  getIncomingRequestAttributesOnResponse,
-  getIncomingRequestMetricAttributes,
-  getIncomingRequestMetricAttributesOnResponse,
-  getOutgoingRequestAttributes,
-  getOutgoingRequestAttributesOnResponse,
-  getOutgoingRequestMetricAttributes,
-  getOutgoingRequestMetricAttributesOnResponse,
-  getRequestInfo,
-  headerCapture,
-  isCompressed,
-  isValidOptionsType,
-  parseResponseStatus,
-  satisfiesPattern,
-  setAttributesFromHttpKind,
-  setRequestContentLengthAttribute,
-  setResponseContentLengthAttribute,
-  setSpanWithError,
-} from './utils';

experimental/packages/opentelemetry-instrumentation-http/src/internal-types.ts

@@ -0,0 +1,64 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import type * as http from 'http';
+import type * as https from 'https';
+import { get, IncomingMessage, request } from 'http';
+import * as url from 'url';
+
+export type IgnoreMatcher = string | RegExp | ((url: string) => boolean);
+export type HttpCallback = (res: IncomingMessage) => void;
+export type RequestFunction = typeof request;
+export type GetFunction = typeof get;
+
+export type HttpCallbackOptional = HttpCallback | undefined;
+
+// from node 10+
+export type RequestSignature = [http.RequestOptions, HttpCallbackOptional] &
+  HttpCallback;
+
+export type HttpRequestArgs = Array<HttpCallbackOptional | RequestSignature>;
+
+export type ParsedRequestOptions =
+  | (http.RequestOptions & Partial<url.UrlWithParsedQuery>)
+  | http.RequestOptions;
+export type Http = typeof http;
+export type Https = typeof https;
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export type Func<T> = (...args: any[]) => T;
+
+export interface Err extends Error {
+  errno?: number;
+  code?: string;
+  path?: string;
+  syscall?: string;
+  stack?: string;
+}
+
+/**
+ * Tracks whether this instrumentation emits old experimental,
+ * new stable, or both semantic conventions.
+ *
+ * Enum values chosen such that the enum may be used as a bitmask.
+ */
+export const enum SemconvStability {
+  /** Emit only stable semantic conventions */
+  STABLE = 0x1,
+  /** Emit only old semantic convetions */
+  OLD = 0x2,
+  /** Emit both stable and old semantic convetions */
+  DUPLICATE = 0x1 | 0x2,
+}

experimental/packages/opentelemetry-instrumentation-http/src/types.ts

@@ -14,40 +14,14 @@
  * limitations under the License.
  */
 import { Span, Attributes } from '@opentelemetry/api';
-import type * as http from 'http';
-import type * as https from 'https';
 import {
   ClientRequest,
-  get,
   IncomingMessage,
-  request,
   ServerResponse,
   RequestOptions,
 } from 'http';
-import * as url from 'url';
 import { InstrumentationConfig } from '@opentelemetry/instrumentation';
 
-export type IgnoreMatcher = string | RegExp | ((url: string) => boolean);
-export type HttpCallback = (res: IncomingMessage) => void;
-export type RequestFunction = typeof request;
-export type GetFunction = typeof get;
-
-export type HttpCallbackOptional = HttpCallback | undefined;
-
-// from node 10+
-export type RequestSignature = [http.RequestOptions, HttpCallbackOptional] &
-  HttpCallback;
-
-export type HttpRequestArgs = Array<HttpCallbackOptional | RequestSignature>;
-
-export type ParsedRequestOptions =
-  | (http.RequestOptions & Partial<url.UrlWithParsedQuery>)
-  | http.RequestOptions;
-export type Http = typeof http;
-export type Https = typeof https;
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-export type Func<T> = (...args: any[]) => T;
-
 export interface HttpCustomAttributeFunction {
   (
     span: Span,
@@ -114,26 +88,3 @@ export interface HttpInstrumentationConfig extends InstrumentationConfig {
     server?: { requestHeaders?: string[]; responseHeaders?: string[] };
   };
 }
-
-export interface Err extends Error {
-  errno?: number;
-  code?: string;
-  path?: string;
-  syscall?: string;
-  stack?: string;
-}
-
-/**
- * Tracks whether this instrumentation emits old experimental,
- * new stable, or both semantic conventions.
- *
- * Enum values chosen such that the enum may be used as a bitmask.
- */
-export const enum SemconvStability {
-  /** Emit only stable semantic conventions */
-  STABLE = 0x1,
-  /** Emit only old semantic convetions */
-  OLD = 0x2,
-  /** Emit both stable and old semantic convetions */
-  DUPLICATE = 0x1 | 0x2,
-}

experimental/packages/opentelemetry-instrumentation-http/src/utils.ts

@@ -76,7 +76,7 @@ import {
   IgnoreMatcher,
   ParsedRequestOptions,
   SemconvStability,
-} from './types';
+} from './internal-types';
 import forwardedParse = require('forwarded-parse');
 
 /**

experimental/packages/opentelemetry-instrumentation-http/test/functionals/http-enable.test.ts

@@ -66,7 +66,7 @@ import * as assert from 'assert';
 import * as nock from 'nock';
 import * as path from 'path';
 import { HttpInstrumentation } from '../../src/http';
-import { HttpInstrumentationConfig, SemconvStability } from '../../src/types';
+import { HttpInstrumentationConfig } from '../../src/types';
 import { assertSpan } from '../utils/assertSpan';
 import { DummyPropagation } from '../utils/DummyPropagation';
 import { httpRequest } from '../utils/httpRequest';
@@ -88,6 +88,7 @@ instrumentation.disable();
 import * as http from 'http';
 import { AttributeNames } from '../../src/enums/AttributeNames';
 import { getRemoteClientAddress } from '../../src/utils';
+import { SemconvStability } from '../../src/internal-types';
 
 const applyCustomAttributesOnSpanErrorMessage =
   'bad applyCustomAttributesOnSpan function';

experimental/packages/opentelemetry-instrumentation-http/test/functionals/http-metrics.test.ts

@@ -48,7 +48,7 @@ instrumentation.enable();
 instrumentation.disable();
 
 import * as http from 'http';
-import { SemconvStability } from '../../src/types';
+import { SemconvStability } from '../../src/internal-types';
 import { getRPCMetadata, RPCType } from '@opentelemetry/core';
 import { AsyncHooksContextManager } from '@opentelemetry/context-async-hooks';
 

experimental/packages/opentelemetry-instrumentation-http/test/functionals/utils.test.ts

@@ -37,7 +37,7 @@ import {
   IgnoreMatcher,
   ParsedRequestOptions,
   SemconvStability,
-} from '../../src/types';
+} from '../../src/internal-types';
 import * as utils from '../../src/utils';
 import { AttributeNames } from '../../src/enums/AttributeNames';
 import { RPCType, setRPCMetadata } from '@opentelemetry/core';