feat(server): Converter top-level server library into a class

bin/server.js

@@ -1,3 +1,12 @@
+/*
+  This Koa server has two interfaces:
+  - REST API over HTTP
+  - JSON RPC over IPFS
+
+  The architecture of the code follows the Clean Architecture pattern:
+  https://troutsblog.com/blog/clean-architecture
+*/
+
 // npm libraries
 const Koa = require('koa')
 const bodyParser = require('koa-bodyparser')
@@ -12,16 +21,17 @@ const cors = require('kcors')
 
 // Local libraries
 const config = require('../config') // this first.
-// const IPFSLib = require('../src/lib/ipfs')
 const AdminLib = require('../src/adapters/admin')
-const adminLib = new AdminLib()
-// const JSONRPC = require('../src/rpc')
-// const rpc = new JSONRPC()
-
 const errorMiddleware = require('../src/controllers/rest-api/middleware/error')
 const { wlogger } = require('../src/adapters/wlogger')
 
-async function startServer () {
+class Server {
+  constructor () {
+    this.adminLib = new AdminLib()
+  }
+
+  async startServer () {
+    try {
       // Create a Koa instance.
       const app = new Koa()
       app.keys = [config.session]
@@ -72,15 +82,14 @@ async function startServer () {
       console.log(`Server started on ${config.port}`)
 
       // Create the system admin user.
-  const success = await adminLib.createSystemUser()
+      const success = await this.adminLib.createSystemUser()
       if (success) console.log('System admin user created.')
 
       return app
+    } catch (err) {
+      console.error('Could not start server. Error: ', err)
+    }
+  }
 }
-// startServer()
 
-// export default app
-// module.exports = app
-module.exports = {
-  startServer
-}
+module.exports = Server

index.js

@@ -1,3 +1,4 @@
-const server = require('./bin/server.js')
+const Server = require('./bin/server.js')
+const server = new Server()
 
 server.startServer()

test/e2e/automated/a01-auth.rest-e2e.js

@@ -10,7 +10,7 @@ const axios = require('axios').default
 
 // Local support libraries
 const config = require('../../../config')
-const app = require('../../../bin/server')
+const Server = require('../../../bin/server')
 const testUtils = require('../../utils/test-utils')
 const AdminLib = require('../../../src/adapters/admin')
 const adminLib = new AdminLib()
@@ -22,6 +22,8 @@ const LOCALHOST = `http://localhost:${config.port}`
 
 describe('Auth', () => {
   before(async () => {
+    const app = new Server()
+
     // This should be the first instruction. It starts the REST API server.
     await app.startServer()