Files
getting-started/nodejs/graphql/student-register/resolvers.js
2023-03-13 05:36:45 +01:00

42 lines
1.2 KiB
JavaScript

const { Student } = require("./models/Student.js");
// GraphQL Resolvers
const resolvers = {
Query: {
hello: () => "Hello from Reflectoring Blog",
welcome: (parent, args) => `Hello ${args.name}`,
students: async () => await Student.find({}), // return array of students
student: async (parent, args) => await Student.findById(args.id), // return student by id
},
Mutation: {
create: async (parent, args) => {
const { firstName, lastName, age } = args;
const newStudent = new Student({
firstName,
lastName,
age,
});
await newStudent.save();
return newStudent;
},
update: async (parent, args) => {
const { id } = args;
const updatedStudent = await Student.findByIdAndUpdate(id, args);
if (!updatedStudent) {
throw new Error(`Student with ID ${id} not found`);
}
return updatedStudent;
},
delete: async (parent, args) => {
const { id } = args;
const deletedStudent = await Student.findByIdAndDelete(id);
if (!deletedStudent) {
throw new Error(`Student with ID ${id} not found`);
}
return deletedStudent;
},
},
};
module.exports = { resolvers };