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@fiberplane/hono-otel

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Hono middleware to forward OpenTelemetry traces to a local instance of @fiberplane/studio

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/* * 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 { AsyncLocalStorage } from "node:async_hooks"; import { ROOT_CONTEXT } from "@opentelemetry/api"; import { AbstractAsyncHooksContextManager } from "./AbstractAsyncHooksContextManager.js"; export class AsyncLocalStorageContextManager extends AbstractAsyncHooksContextManager { constructor() { super(); this._asyncLocalStorage = new AsyncLocalStorage(); } active() { return this._asyncLocalStorage.getStore() ?? ROOT_CONTEXT; } with(context, fn, thisArg, ...args) { const cb = thisArg == null ? fn : fn.bind(thisArg); return this._asyncLocalStorage.run(context, cb, ...args); } enable() { return this; } disable() { this._asyncLocalStorage.disable(); return this; } }