This tool converts your typescript interfaces to graphql schema.
// schema.ts
import { ID, Int, Float } from 'ts2graphql';
interface Query {
getByAuthor?(args: { id: ID }): Author;
}
interface Author {
id: ID;
name: string;
books(filter: { max?: Int }): Book[];
}
type Book = PDFBook | AudioBook;
interface BookBase {
/** The authors of this content */
authors: Author[];
name: string;
publishedAt: Date;
illustrator?: {
__typename: 'Illustrator';
name: string;
email: string;
};
}
interface PDFBook extends BookBase {
file: string;
}
interface AudioBook extends BookBase {
audioFile: string;
}// index.ts
import { printSchema } from 'graphql';
import { createSchema } from 'ts2graphql';
const schema = createSchema(__dirname + '/schema.ts');
const rootValue = {}; // you should implement resolve methods
express.use(
'/api/graphql',
graphqlHTTP({
schema: schema,
rootValue: rootValue,
})
);
console.log(printSchema(schema));will generate schema
type AudioBook {
audioFile: String!
"""The authors of this content"""
authors: [Author!]!
name: String!
publishedAt: Date!
illustrator: Illustrator
}
type Author {
id: ID!
name: String!
books(max: Int): [Book!]!
}
union Book = PDFBook | AudioBook
scalar Date
type Illustrator {
__typename: String!
name: String!
email: String!
}
type PDFBook {
file: String!
"""The authors of this content"""
authors: [Author!]!
name: String!
publishedAt: Date!
illustrator: Illustrator
}
type Query {
getByAuthor(id: ID!): Author
}