@nger/ast.ts-graphql

ts-graphql

根据ts代码自动生成graphql文件

Usage

import { Query, Resolver, ResolveProperty } from '@nestjs/graphql';
import { Department } from './entities/Department.entity'
import { User } from './entities/User.entity'
import { IDepartmen, UserDepartment } from './types';
@Resolver('IDepartmen')
export class DemoUnion {
    @ResolveProperty()
    __resolveType(obj: IDepartmen) {
        if (obj instanceof User) {
            return `User`;
        }
        if (obj instanceof Department) {
            return `Department`
        }
        if (obj instanceof UserDepartment) {
            return `UserDepartment`
        }
    }
}
@Resolver()
export class DemoGraphql {
    id: number = 0;
    /**
     * get department
     * @param {User} user 
     */
    @Query()
    async getDepartment(): Promise<IDepartmen> {
        this.id += 1;
        const department = new Department()
        department.title = `title`;
        const user = new User();
        user.password = `password`;
        user.username = `username`;
        if (this.id % 3 === 0) {
            const userDepartment = new UserDepartment();
            userDepartment.user = user;
            userDepartment.department = department;
            return userDepartment;
        }
        if (this.id % 2 === 0) {
            return department;
        }
        return user;
    }
}

生成

scalar Date

scalar Json

type Department {
  """部门id"""
  id: String!
  """部门名称"""
  title: String!
}

type User {
  """用户uid"""
  uid: String!
  """用户名"""
  username: String!
  """密码"""
  password: String!
}

type UserDepartment {
  user: User!
  department: Department!
}

union IDepartmen = Department | User | UserDepartment

type Query {
  """get department"""
  getDepartment: IDepartmen!
}

{
	getDepartment{
    ...on User{
      username,
      password
    },
    ...on Department{
      title
    },
    ...on UserDepartment{
      user{
        username,
        password
      }
      department{
        title
      }
    }
  }
}