Port API to vercel

.gitignore

@@ -1 +1,2 @@
 node_modules
+.vercel

api/graphql.js

@@ -1,7 +1,7 @@
-const sift = require('sift');
-const provinces = require('provinces');
-const {ApolloServer, gql} = require('apollo-server');
-const {continents, countries, languages} = require('countries-list');
+import provinces from 'provinces';
+import sift from 'sift';
+import {ApolloServer, gql} from 'apollo-server-micro';
+import {continents, countries, languages} from 'countries-list';
 
 const typeDefs = gql`
   type Continent {
@@ -189,6 +189,12 @@ const server = new ApolloServer({
   }
 });
 
-server.listen({port: process.env.PORT || 4000}).then(({url}) => {
-  console.log(`🚀  Server ready at ${url}`);
+export default server.createHandler({
+  path: '/api/graphql'
 });
+
+export const config = {
+  api: {
+    bodyParser: false
+  }
+};

package.json

@@ -8,7 +8,7 @@
     "extends": "@trevorblades"
   },
   "dependencies": {
-    "apollo-server": "^2.14.2",
+    "apollo-server-micro": "^2.25.2",
     "countries-list": "^2.5.4",
     "graphql": "^14.6.0",
     "provinces": "^1.11.0",

vercel.json

@@ -0,0 +1,8 @@
+{
+  "rewrites": [
+    {
+      "source": "/",
+      "destination": "/api/graphql"
+    }
+  ]
+}