graphql-typed-ast
Experimental TypeScript type-based parser for GraphQL.
This repo is for experimental TypeScript type-system based parser for GraphQL, for creating a real time resolvers-signature based on GraphQL SDL.
It uses a custom alpha version of TypeScript from this PR.
Goals
- GraphQL Lexer
- GraphQL Document Parser
Example
The goal of this experiment is to allow this:
const ast = `
type Query { user(id: ID!): User! }
type User { id: ID!, name: String! }
`;
const resolvers: ResolverFor<
typeof ast,
{ User: UserModel },
ContextType
> = {
Query: {
user(parent, { id }, context) => {
// parent is null, id is string | number, context is ContextType, expected return type is `UserModel`
}
},
User: {
name: (parent, args, context) => {
// parent is UserModel, args is {}, context is ContextType, expected return type is `string`
}
}
};