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JWT Authentication for WPGraphQL

0.2.1 2017-11-04 15:08 UTC



WPGraphQL JWT Authentication

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This plugin extends the WPGraphQL plugin to provide authentication using JWT (JSON Web Tokens)

JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.

This plugin was initially based off the wp-api-jwt-auth plugin by Enrique Chavez (https://github.com/Tmeister), but modified (almost completely) for use with the WPGraphQL plugin.

Install, Activate & Setup

You can install and activate the plugin like any WordPress plugin. Download the .zip from Github and add to your plugins directory, then activate.

JWT uses a Secret defined on the server to validate the signing of tokens.

It's recommended that you use something like the WordPress Salt generator (https://api.wordpress.org/secret-key/1.1/salt/) to generate a Secret.

You can define a Secret like so:

define( 'GRAPHQL_JWT_AUTH_SECRET_KEY', 'your-secret-token' );

Or you can use the filter graphql_jwt_auth_secret_key to set a Secret like so:

add_filter( 'graphql_jwt_auth_secret_key', function() {
  return 'your-secret-token';

This secret is used in the encoding and decoding of the JWT token. If the Secret were ever changed on the server, ALL tokens that were generated with the previous Secret would become invalid. So, if you wanted to invalidate all user tokens, you can change the Secret on the server and all previously issued tokens would become invalid and require users to re-authenticate.

How the plugin Works

This plugin adds a new login mutation to the WPGraphQL Schema.

This can be used like so:

mutation LoginUser {
  login( input: {
    login: "your_login"
    password: "your password"
  } ) {
    user: {

The authToken that is received in response to the login mutation can then be stored in local storage (or similar) and used in subsequent requests as an HTTP Authorization header to Authenticate the user prior to execution of the GraphQL request.

Example using GraphiQL

Example using GraphiQL