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graphql-disable-introspection-with-exceptions

v1.0.1

Published

Disable Introspection in GraphQL-JS with a simple validation rule, but add exceptions for certain safe types

Downloads

37

Readme

graphql-disable-introspection-with-exceptions

Disable Introspection in GraphQL-JS with a simple validation rule, but add exceptions for certain safe types

Extends the graphql-disable-introspection package that is used by default in the production mode of Apollo Server.

Queries that contain __schema or __type will fail validation with this rule, unless the certain type is passed in to this factory as an exception.

Usage

The package can be installed from npm

npm install -save graphql-disable-introspection

It exports a factory function that returns a single validation rule which you can pass to your node GraphQL server with the validationRules argument.

Apollo Server Example

const { ApolloServer, gql } = require('apollo-server');
const disableIntrospectionExcept = require('graphql-disable-introspection-with-exceptions')

...

const server = new ApolloServer({
    typeDefs,
    resolvers,
    // allow introspection by default in production
    introspection: true,
    validationRules: [
        // disable queries that contain __schema or __type, whilst allowing __type queries for the UserStatus enum
        disableIntrospectionExcept(['UserStatus']) 
    ]
});

This will now allow me to expose the UserStatus Enum values for use in the frontend

query getUserStatusEnumValues {
  __type(name: "UserStatus") {
    name
    enumValues {
      name
    }
  }
}