Package Exports

apollo-link-error

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Readme

Error Link

Purpose

An Apollo Link to allow sending error events to custom services or loggers.

Installation

npm install apollo-link-error --save

Usage

import { onError } from "apollo-link-error";

const link = onError(({ graphQLErrors, networkError }) => {
  console.error({ graphQLErrors, networkError });
})

Options

Error Link takes a function that is called in the event of an error. This function is called with an object containing the following keys:

operation: The Operation that errored
response: The Execution of the reponse
graphQLErrors: any errors from the GraphQL endpoint
networkError: any error during the link execution or server response

Ignoring errors

If you want to conditionally ignore errors, you can set response.errors = null; within the error handler:

onError(({ response, operation }) => {
  if (operation.operationName === "IgnoreErrorsQuery") {
    response.errors = null;
  }
})

Context

The Error Link does not use the context for anything