fix: remove err param from .listen() callback;

- Closes #120, #163

Author: lukeed

examples/async-json/index.js

@@ -17,7 +17,6 @@ polka()
 		});
 		send(res, 200, data);
 	})
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Running on localhost:${PORT}`);
 	});

examples/sub-app/index.js

@@ -12,7 +12,6 @@ polka()
 	.get('/', reply)
 	.get('/about', reply)
 	.use('users', users)
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Running on localhost:${PORT}`);
 	});

examples/with-afterjs/src/index.js

@@ -2,11 +2,7 @@ import app from './server';
 
 let { handler, server } = app;
 
-server.listen(process.env.PORT || 3000, error => {
-  if (error) {
-    console.log(error);
-  }
-
+server.listen(process.env.PORT || 3000, () => {
   console.log('🚀 started');
 });
 

examples/with-apollo/index.js

@@ -41,7 +41,6 @@ polka()
 	.get('/graphiql', graphiqlExpress({
 		endpointURL: '/graphql'
 	}))
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Ready on localhost:${PORT}`)
 	});

examples/with-body-parser/index.js

@@ -9,7 +9,6 @@ polka()
 		let json = JSON.stringify(req.body);
 		res.end(json);
 	})
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Running on localhost:${PORT}`);
 	});

examples/with-firebase-admin/index.js

@@ -9,7 +9,6 @@ const { PORT=3000 } = process.env;
 polka()
 	.use(cors, compress, json(), serve)
 	.use('api', require('./api'))
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Running on localhost:${PORT}`);
 	});

examples/with-graphql/index.js

@@ -39,7 +39,6 @@ polka()
 			send(res, 200, data);
 		});
 	})
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Ready on localhost:${PORT}`);
 	});

examples/with-morgan/index.js

@@ -12,7 +12,6 @@ polka()
 	.get('/', (req, res) => {
 		send(res, 'Index');
 	})
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Ready on localhost:${PORT}`);
 	});

examples/with-nextjs/index.js

@@ -10,8 +10,7 @@ const handle = app.getRequestHandler();
 app.prepare().then(() => {
 	polka()
 		.get('*', handle)
-		.listen(PORT, err => {
-			if (err) throw err;
+		.listen(PORT, () => {
 			console.log(`> Ready on http://localhost:${PORT}`);
 		});
 });

examples/with-nuxtjs/index.js

@@ -23,8 +23,7 @@ if (dev) {
 }
 
 function listen() {
-	return app.listen(PORT, err => {
-		if (err) throw err;
+	return app.listen(PORT, () => {
 		console.log(`> Ready on localhost:${PORT}`);
 	});
 }

examples/with-sapper/server.js

@@ -14,7 +14,6 @@ global.fetch = (url, opts) => {
 
 polka()
 	.use(compression, static, sapper)
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Running on localhost:${PORT}`);
 	});

examples/with-serve-static/index.js

@@ -10,7 +10,6 @@ polka()
 	.get('/health', (req, res) => {
 		res.end('OK');
 	})
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Running on localhost:${PORT}`);
 	});

examples/with-sirv/index.js

@@ -8,7 +8,6 @@ polka()
 	.get('/health', (req, res) => {
 		res.end('OK');
 	})
-	.listen(PORT, err => {
-		if (err) throw err;
+	.listen(PORT, () => {
 		console.log(`> Running on localhost:${PORT}`);
 	});

examples/with-socketio/index.js

@@ -8,8 +8,7 @@ const { PORT=3000 } = process.env;
 const files = sirv('public');
 const server = http.createServer();
 
-polka({ server }).use(files).listen(PORT, err => {
-	if (err) throw err;
+polka({ server }).use(files).listen(PORT, () => {
 	console.log(`> Running on localhost:${PORT}`);
 });
 

examples/with-uws/index.js

@@ -7,6 +7,6 @@ const { handler } = polka().get('/', (req, res) => {
 	res.end('Hello');
 });
 
-http.createServer(handler).listen(PORT, err => {
+http.createServer(handler).listen(PORT, () => {
 	console.log(`> Running on localhost:${PORT}`);
 });

packages/polka/readme.md

@@ -65,8 +65,7 @@ polka()
     console.log(`~> Hello, ${req.hello}`);
     res.end(`User: ${req.params.id}`);
   })
-  .listen(3000, err => {
-    if (err) throw err;
+  .listen(3000, () => {
     console.log(`> Running on localhost:3000`);
   });
 ```

readme.md

@@ -65,8 +65,7 @@ polka()
     console.log(`~> Hello, ${req.hello}`);
     res.end(`User: ${req.params.id}`);
   })
-  .listen(3000, err => {
-    if (err) throw err;
+  .listen(3000, () => {
     console.log(`> Running on localhost:3000`);
   });
 ```