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Add GraphQL Directive

graphql-citadel is powered by GraphQL Schema directives. You will first add a schema directory to your schema.

Our initial schema is below:

type Book {
    title: String
    author: String
}

input BookInput {
    title: String!
}

type Mutation {
    createBook (book: BookInput): Book
}

type Query {
    books: [Book!]
}

1. Assign the directive​

Add the directive to your queries or mutations.

type Query {
    book: [Book!] @authenticated
}

2. Add schema transformer and type definitions​

const { citadelDirective, citadelDirectiveTrasformer } = citadelDirective({
    authenticationResolver: // ... see the next page for details
})

let schema = makeExecutableSchema({
  typeDefs: [
    typeDefs,
    citadelDirectiveTypeDefs
  ],
  resolvers
})

schema = citadelDirectiveTransformer(schema)

const server = new ApolloServer({
  schema,
  csrfPrevention: true,
});

// ...

Next, you need to implement the authentication resolver.