Update JavaScript examples to latest Railway (#14)

* update serverless pg example
* update nextjs example
* update prisma example

javascript/serverless/package.json

@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "global": "^4.4.0",
-    "railway": "^2.0.5",
+    "pg": "^8.4.0",
     "tslib": "^2.0.0"
   }
 }

javascript/serverless/src/index.js

@@ -1,6 +1,7 @@
-const pg = require("railway/pg");
+const pg = require("pg");
+const client = new pg.Pool();
 
-pg.query("SELECT now()", (err, res) => {
+client.query("SELECT now()", (err, res) => {
   if (err) {
     console.log(err);
   }
@@ -8,4 +9,4 @@ pg.query("SELECT now()", (err, res) => {
   console.log(res.rows);
 });
 
-pg.close();
+client.close();

javascript/with-next-js/package.json

@@ -9,7 +9,7 @@
   },
   "dependencies": {
     "next": "9.5.0",
-    "railway": "^2.0.5",
+    "pg": "^8.4.0",
     "react": "16.13.1",
     "react-dom": "16.13.1"
   }

javascript/with-next-js/pages/api/data.js

@@ -3,12 +3,13 @@
 // Call Railway anywhere on serverside code.
 // Here or getInitialProps
 
-import pg from "railway/pg";
 import { promisify } from "util";
+import pg from "pg";
 
 export default async (req, res) => {
   try {
-    const query = await promisify(pg.query)("Select NOW()");
+    const client = pg.Pool();
+    const query = await promisify(client.query)("Select NOW()");
     res.json({
       data: {
         time: query.rows[0].now,

javascript/with-prisma/package.json

@@ -13,7 +13,6 @@
   },
   "devDependencies": {
     "@prisma/cli": "^2.1.3",
-    "railway": "^2.0.5",
     "ts-node": "^8.10.2",
     "typescript": "^3.9.7",
     "yarpm": "^0.2.1"