feat(core): Nilan has an idea! (added support for nested selection)

Author: maticzav

README.md

@@ -14,7 +14,7 @@ import { GraphQLServer } from 'graphql-yoga'
 import { forward } from 'graphql-middleware-forward-binding'
 import { Prisma } from 'prisma-binding'
 
-const bindingForwardMiddleware = forward('Query', 'Mutation')('db')
+const bindingForwardMiddleware = forward('Query', 'Mutation.createBasket')('db')
 
 const server = GraphQLServer({
   typeDefs: 'generated-schema.graphql',

package.json

@@ -2,7 +2,9 @@
   "name": "graphql-middleware-forward-binding",
   "description": "GraphQL Binding forwardTo plugin for GraphQL Middleware",
   "version": "0.0.0-semantic-release",
-  "files": ["dist"],
+  "files": [
+    "dist"
+  ],
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "typescript": {
@@ -11,18 +13,20 @@
   "scripts": {
     "prepublish": "npm run test",
     "build": "rm -rf dist && tsc -d",
-    "lint":
-      "tslint --project tsconfig.json {src}/**/*.ts && prettier-check --ignore-path .gitignore {src,.}/{*.ts,*.js}",
-    "test": "npm run lint && npm run build",
+    "lint": "tslint --project tsconfig.json {src}/**/*.ts && prettier-check --ignore-path .gitignore {src,.}/{*.ts,*.js}",
+    "test": "npm run lint && npm run build && ava",
     "semantic-release": "semantic-release"
   },
   "author": "Matic Zavadlal <matic.zavadlal@gmail.com>",
   "dependencies": {
+    "dot-prop": "^4.2.0",
     "graphql-binding": "^2.0.0",
     "graphql-middleware": "^1.2.3"
   },
   "devDependencies": {
+    "@types/dot-prop": "^4.2.0",
     "@types/node": "^10.1.2",
+    "ava": "^0.25.0",
     "graphql": "^0.13.2",
     "prettier": "^1.12.1",
     "prettier-check": "^2.0.0",

src/index.ts

@@ -1,5 +1,6 @@
 import { IMiddleware } from 'graphql-middleware'
 import { forwardTo } from 'graphql-binding'
+import { set } from 'dot-prop'
 
 export const forward = (...types: string[]) => (
   database: string,
@@ -16,13 +17,7 @@ export const forward = (...types: string[]) => (
     return forwardTo(database)(parent, args, ctx, info)
   }
 
-  const middleware = types.reduce(
-    (_types, type) => ({
-      ..._types,
-      [type]: fn,
-    }),
-    {},
-  )
+  const middleware = types.reduce((_types, type) => set(_types, type, fn), {})
 
   return middleware
 }

test.js

@@ -0,0 +1,11 @@
+import test from 'ava'
+import { forwardTo } from 'graphql-binding'
+import { forward } from './dist'
+
+test('Constructs tree correctly', async t => {
+  const tree = forward('Query', 'Mutation.foo', 'Mutation.bar')('db')
+
+  t.deepEqual(Object.keys(tree), ['Query', 'Mutation'])
+  t.is(typeof tree.Query, 'function')
+  t.deepEqual(Object.keys(tree.Mutation), ['foo', 'bar'])
+})