Mutations e Inputs

Author: johnsi15

README.md

@@ -23,4 +23,20 @@
     description
   }
 }
+```
+
+* Mutation
+
+```
+mutation {
+  createCourse(input: {
+   	title: "Nuevo curso"
+    description: "Description new"
+    topic: "diseño"
+  }){
+    _id
+    title
+    description
+  }
+}
 ```

index.js

@@ -16,7 +16,7 @@ const typeDefs = readFileSync(
   join(__dirname, 'lib', 'schema.gql'),
   'utf-8'
 )
-const schema = makeExecutableSchema({ typeDefs, resolvers})
+const schema = makeExecutableSchema({ typeDefs, resolvers })
 
 app.use('/api', gqlMiddleware({
   schema: schema,

lib/db.js

@@ -7,7 +7,7 @@ const {
   DB_PASSWORD,
   DB_HOST,
   DB_PORT,
-  DB_NAME,
+  DB_NAME
 } = process.env
 
 const mongoUrl = `mongodb://${DB_USER}:${DB_PASSWORD}@${DB_HOST}:${DB_PORT}/${DB_NAME}`

lib/mutations.js

@@ -0,0 +1,27 @@
+'use strict'
+
+const connectDb = require('./db')
+
+module.exports = {
+  createCourse: async (root, { input }) => {
+    const defaults = {
+      teacher: '',
+      topic: ''
+    }
+
+    const newCourse = Object.assign(defaults, input)
+    let db
+    let course
+
+    try {
+      db = await connectDb()
+      course = await db.collection('courses').insertOne(input)
+
+      newCourse._id = course.insertedId
+    } catch (error) {
+      console.error(error)
+    }
+
+    return newCourse
+  }
+}

lib/querys.js

@@ -0,0 +1,33 @@
+'use strict'
+
+const connectDb = require('./db')
+const { ObjectID } = require('mongodb')
+
+module.exports = {
+  getCourses: async () => {
+    let db
+    let courses = []
+
+    try {
+      db = await connectDb()
+      courses = await db.collection('courses').find().toArray()
+    } catch (error) {
+      console.error(error)
+    }
+
+    return courses
+  },
+  getCourse: async (root, { id }) => {
+    let db
+    let course
+
+    try {
+      db = await connectDb()
+      course = await db.collection('courses').findOne({ _id: ObjectID(id) })
+    } catch (error) {
+      console.error(error)
+    }
+
+    return course
+  }
+}

lib/resolvers.js

@@ -1,35 +1,9 @@
 'use strict'
 
-const connectDb = require('./db')
-const { ObjectID } = require('mongodb')
+const querys = require('./querys')
+const mutations = require('./mutations')
 
 module.exports = {
-  Query: {
-    getCourses: async () => {
-      let db
-      let courses = []
-
-      try {
-        db = await connectDb()
-        courses = await db.collection('courses').find().toArray()
-      } catch (error) {
-        console.error(error)
-      }
-
-      return courses
-    },
-    getCourse: async (root, { id }) => {
-      let db
-      let course
-
-      try {
-        db = await connectDb()
-        course = await db.collection('courses').findOne({ _id: ObjectID(id)})
-      } catch (error) {
-        console.error(error)
-      }
-
-      return course
-    }
-  }
+  Query: querys,
+  Mutation: mutations
 }

lib/schema.gql

@@ -11,4 +11,16 @@ type Query {
   getCourses: [Course]
   "Devuelve un curso el simbolo ! define que es obligatorio"
   getCourse(id: ID!): Course
+}
+
+input CourseInput {
+  title: String!
+  teacher: String
+  description: String!
+  topic: String
+}
+
+type Mutation {
+  "Crea un curso"
+  createCourse(input: CourseInput!): Course
 }