docs: Update Fastify listen() calls to use { port: 3000 } in docs and examples (#1023)

Author: jaime-amate

docs/docs/examples/react-ssr.mdx

@@ -228,7 +228,7 @@ fastify.get('/', async () => fastify.runTask({ name: 'James' }));
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }
@@ -267,7 +267,7 @@ fastify.get('/', async () => fastify.runTask({ name: 'James' }, { name: 'renderP
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }
@@ -321,7 +321,7 @@ fastify.get('/', async () => {
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }

examples/react-ssr/pooled.js

@@ -16,7 +16,7 @@ fastify.get('/', async () => fastify.run({ name: 'James' }));
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }

examples/react-ssr/unpooled.js

@@ -27,7 +27,7 @@ fastify.get('/', async () => {
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }

examples/server/async-sleep-pooled.js

@@ -18,7 +18,7 @@ fastify.get('/', () => fastify.run());
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }

examples/server/async-sleep-unpooled.js

@@ -13,7 +13,7 @@ fastify.get('/', async () => {
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }

examples/server/sync-sleep-pooled.js

@@ -18,7 +18,7 @@ fastify.get('/', () => fastify.run());
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }

examples/server/sync-sleep-unpooled.js

@@ -14,7 +14,7 @@ fastify.get('/', async () => {
 // Run the server!
 const start = async () => {
   try {
-    await fastify.listen(3000);
+    await fastify.listen({ port: 3000 });
   } catch (err) {
     process.exit(1);
   }