OpenTelemetry SDK
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    ZoneContextManager This module provides an easy functionality for tracing action between asynchronous operations in web. It was not possible with standard [StackContextManager]https://github.com/open-telemetry/opentelemetry-js/blob/main/packages/opentelemetry-sdk-trace-web/src/StackContextManager.ts. It heavily depends on [zone.js]https://www.npmjs.com/package/zone.js. It stores the information about context in zone. Each Context will have always new Zone; It also supports binding a certain Span to a target that has "addEventListener" and "removeEventListener". When this happens a new zone is being created and the provided Span is being assigned to this zone.

    Implements

    Index
    • Binds a the certain context or the active one to the target function and then returns the target

      Type Parameters

      • T

      Parameters

      • context: Context

        A context (span) to be bind to target

      • target: T | TargetWithEvents

        a function or event emitter. When target or one of its callbacks is called, the provided context will be used as the active context for the duration of the call.

      Returns T

    • Disable the context manager (clears all the contexts)

      Returns this

    • Enables the context manager and creates a default(root) context

      Returns this

    • Calls the callback function [fn] with the provided [context]. If [context] is undefined then it will use the active context. The context will be set as active

      Type Parameters

      • A extends unknown[]
      • F extends (...args: A) => ReturnType<F>

      Parameters

      • context: Context | null

        A context (span) to be called with provided callback

      • fn: F

        Callback function

      • OptionalthisArg: ThisParameterType<F>

        optional receiver to be used for calling fn

      • ...args: A

        optional arguments forwarded to fn

      Returns ReturnType<F>