Task_6_Start

Author: peteyycz

src/gateway/index.js

@@ -3,14 +3,7 @@ const { ApolloServer } = require('apollo-server');
 
 const gateway = new ApolloGateway({
   serviceList: [
-    {
-      name: 'cms',
-      url: 'http://localhost:8000/graphql',
-    },
-    {
-      name: 'weather',
-      url: 'http://localhost:8100/graphql',
-    },
+    // TODO (5) list locally running services
   ],
 });
 

src/server/gqlSchema.js

@@ -2,6 +2,8 @@ const { gql } = require('apollo-server');
 
 const { getHello, resolveQuery } = require('./fetcher');
 
+// TODO (3) update the user entity with the weather field and add an external reference
+// to the Weather entity
 const typeDefs = gql`
   enum OrderDirection {
     asc
@@ -26,17 +28,12 @@ const typeDefs = gql`
     direction: OrderDirection
   }
 
-  type User @key(fields: "id"){
+  type User {
     id: ID
     name: String
     username: String
     email: String
     location: String
-    weather: Weather
-  }
-
-  extend type Weather @key(fields: "location") {
-    location: String! @external
   }
 
   type UserEdge {
@@ -87,12 +84,9 @@ const typeDefs = gql`
   }
 `;
 
+// TODO (4) define the new root level entry for the User entity and resolve weather there with the
+// parameters from the weather schema
 const resolvers = {
-  User: {
-    weather(user) {
-      return { __typename: 'Weather', location: user.location };
-    },
-  },
   Query: {
     hello: () => getHello(),
     users: (args) => resolveQuery({ table: 'users', args: args || {} }),

src/weatherServer/gqlSchema.js

@@ -2,16 +2,8 @@ const { gql } = require('apollo-server');
 
 const { getWeather } = require('./fetcher');
 
+// TODO (1) write the new weather schema
 const typeDefs = gql`
-  type Weather @key(fields: "location"){
-    lat: String!
-    lon: String!
-    temp: String!
-    humidity: String!
-    pressure: String!
-    location: String!
-  }
-
   extend type Query {
     weather(location: String!): Weather
   }
@@ -23,12 +15,7 @@ const resolvers = {
       return getWeather(args);
     },
   },
-  Weather: {
-    /* eslint-disable-next-line no-underscore-dangle */
-    __resolveReference(weather) {
-      return getWeather({ location: weather.location });
-    },
-  },
+  // TODO (2) resolve reference on the root level
 };
 
 module.exports = {