convert nested-mutation-or-query to mercurius

Author: capaj

README.md

@@ -48,22 +48,14 @@ const compiledSchema = compileSchema(SuperSchema)
 
 `compiledSchema` is a regular GQL executable schema compatible with `graphql-js` library.
 
-To use it with `express`, you'd have to simply:
+To use it with `apollo-server`, you'd have to use like this:
 
 ```ts
-import express from 'express'
-import graphqlHTTP from 'express-graphql'
+import ApolloServer from 'apollo-server'
 
-const app = express()
+const server = new ApolloServer({ schema, graphiql: true })
 
-app.use(
-  '/graphql',
-  graphqlHTTP({
-    schema: compiledSchema,
-    graphiql: true
-  })
-)
-app.listen(3000, () =>
+server.listen(3000, () =>
   console.log('Graphql API ready on http://localhost:3000/graphql')
 )
 ```

examples/basic-express-server/README.md

@@ -1,4 +1,4 @@
-## Basic express example
+## Basic apollo-server example
 
 Example of basic graphql api able to resolve such query
 
@@ -11,9 +11,8 @@ query {
 Here is all the server code required:
 
 ```ts
-import express from 'express'
 import { SchemaRoot, Query, compileSchema } from 'decapi'
-import graphqlHTTP from 'express-graphql'
+import ApolloServer from 'apollo-server'
 
 @SchemaRoot()
 class SuperSchema {
@@ -25,16 +24,11 @@ class SuperSchema {
 
 const compiledSchema = compileSchema(SuperSchema)
 
-const app = express()
+const server = new ApolloServer({ schema, graphiql: true })
 
-app.use(
-  '/graphql',
-  graphqlHTTP({
-    schema: compiledSchema,
-    graphiql: true
-  })
+server.listen(3000, () =>
+  console.log('Graphql API ready on http://localhost:3000/graphql')
 )
-app.listen(3000)
 ```
 
 To start this example, in this folder run `yarn install` and `yarn start`. Server will be running under `http://localhost:3000/graphql`

examples/nested-mutation-or-query/index.ts

@@ -1,19 +1,13 @@
-import express from 'express'
-import graphqlHTTP from 'express-graphql'
-
 import { schema } from './schema'
-import cors from 'cors'
 
-const app = express()
-app.use(cors())
+import Fastify from 'fastify'
+import mercurius from 'mercurius'
+
+const app = Fastify()
 
-app.use(
-  '/graphql',
-  graphqlHTTP({
-    schema,
-    graphiql: true
-  })
-)
-app.listen(3000, () => {
-  console.log('Api ready on port 3000')
+app.register(mercurius, {
+  schema,
+  graphiql: true
 })
+
+app.listen(3003)

examples/nested-mutation-or-query/package.json

@@ -1,18 +1,21 @@
 {
-  "name": "basic-express-server",
+  "name": "nested-mutation-or-query",
   "version": "1.0.0",
   "main": "index.js",
   "license": "MIT",
   "dependencies": {
     "class-transformer": "^0.2.3",
-    "cors": "^2.8.5",
-    "decapi": "^0.8.10",
-    "express": "^4.17.1",
-    "express-graphql": "^0.9.0",
-    "ts-node": "^8.3.0",
-    "typescript": "^3.6.2"
+    "decapi": "^2.0.0-beta.4",
+    "fastify": "^3.28.0",
+    "graphql": "^16.3.0",
+    "mercurius": "^9.3.6",
+    "ts-node": "^10.7.0"
+  },
+  "devDependencies": {
+    "ttypescript": "^1.5.13",
+    "typescript": "^4.6.3"
   },
   "scripts": {
-    "start": "ts-node index.ts"
+    "start": "ts-node -C ttypescript index.ts"
   }
 }

examples/nested-mutation-or-query/schema.ts

@@ -8,7 +8,7 @@ import {
 } from 'decapi'
 
 @ObjectType()
-class Book {
+class BookQuery {
   @Field()
   id: number
   @Field()
@@ -18,9 +18,12 @@ class Book {
     this.id = id
     this.name = name
   }
+}
 
+@ObjectType()
+class BookMutation extends BookQuery {
   @Field()
-  edit(name: string): Book {
+  edit(name: string): BookQuery {
     this.name = name
     return this
   }
@@ -31,20 +34,20 @@ class Book {
   }
 }
 
-const booksDb: Book[] = [
-  new Book({ id: 1, name: 'Lord of the Rings' }),
-  new Book({ id: 2, name: 'Harry Potter' })
+const booksDb: BookMutation[] = [
+  new BookMutation({ id: 1, name: 'Lord of the Rings' }),
+  new BookMutation({ id: 2, name: 'Harry Potter' })
 ]
 
 @SchemaRoot()
 class MySchema {
-  @Mutation({ type: Book })
-  book(bookId: number): Book {
+  @Mutation()
+  book(bookId: number): BookMutation | undefined {
     return booksDb.find(({ id }) => id === bookId)
   }
 
-  @Query({ type: [Book] })
-  books(): Book[] {
+  @Query({ type: [BookQuery] })
+  books(): BookQuery[] {
     // just a utility to cast our POJOs into a class of Book
     return booksDb
   }

examples/nested-mutation-or-query/tsconfig.json

@@ -1,11 +1,13 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "lib": ["es2017"],
-    "target": "es5",
+    "lib": ["ES2017"],
+    "target": "ES2018",
+    "strictNullChecks": true,
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
     "allowSyntheticDefaultImports": true,
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "plugins": [{ "transform": "typescript-rtti/dist/transformer" }]
   }
 }