Support passing the port via the command line

googleanalytics · Feb 22, 2024 · 02f35cc · 02f35cc
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diff --git a/README.md b/README.md
@@ -18,7 +18,17 @@ Once you install Deno, run the local web server with the following command:
 deno task start
 ```
 
-Then, open [http://localhost](http://localhost) in your web browser.
+Then, open <http://localhost> in your web browser.
+
+By default, the server listens on port 80. If that port is in use or is
+otherwise unavailable, override the port using the `--port` argument. For
+example, you could run the server on port 8000 as follows:
+
+```
+deno task start --port 8000
+```
+
+Then, open <http://localhost:8000> in your web browser.
 
 # Join our community
 

diff --git a/deno.json b/deno.json
@@ -1,6 +1,6 @@
 {
  "tasks": {
- "start": "deno run -A --watch=src/public/ src/index.ts"
+ "start": "deno run --allow-net --allow-read --watch=src/public/ src/index.ts"
  },
  "fmt": {
  "files": {

diff --git a/src/deno.lock b/src/deno.lock
@@ -1,6 +1,10 @@
 {
  "version": "2",
  "remote": {
+ "https://deno.land/[email protected]/assert/assert.ts": "9a97dad6d98c238938e7540736b826440ad8c1c1e54430ca4c4e623e585607ee",
+ "https://deno.land/[email protected]/assert/assertion_error.ts": "4d0bde9b374dfbcbe8ac23f54f567b77024fb67dbb1906a852d67fe050d42f56",
+ "https://deno.land/[email protected]/cli/parse_args.ts": "9bea02050b3f302e706871ff87ecfa3ad82cc34249adbe0dcddfaac75bdb48ff",
+ "https://deno.land/[email protected]/flags/mod.ts": "567a34800a33e701942cb1726dd7e627a76e4681c33ce7346ac85cf90f691a8e",
  "https://deno.land/[email protected]/_util/assert.ts": "e1f76e77c5ccb5a8e0dbbbe6cce3a56d2556c8cb5a9a8802fc9565af72462149",
  "https://deno.land/[email protected]/fs/_util.ts": "68508c05d5a02678179a02beabf2b3eac5b16c5a9cbd1c272686d8101bb2679d",
  "https://deno.land/[email protected]/fs/copy.ts": "b562e8f482cb8459bb011cbd769769bbdb4f6bc966effd277c06edbdbe41b72e",

diff --git a/src/index.ts b/src/index.ts
@@ -1,4 +1,5 @@
 import { configure, renderFile } from "https://deno.land/x/[email protected]/mod.ts";
+import { parse } from "https://deno.land/[email protected]/flags/mod.ts";
 
 const __dirname = new URL(".", import.meta.url).pathname;
 
@@ -9,10 +10,14 @@ const viewPath = [
 ];
 
 configure({ views: viewPath });
+const flags = parse(Deno.args, {
+ string: [ "port" ],
+ default: { port: 80 },
+});
 
-const server = Deno.listen({ port: 80 });
+const server = Deno.listen({ port: flags.port });
 
-console.log("File server running on http://localhost:80/");
+console.log("File server running on http://localhost:" + flags.port + "/");
 
 for await (const conn of server) {
  handleHttp(conn).catch(console.error);

diff --git a/tutorials/1-initial-setup/README.md b/tutorials/1-initial-setup/README.md
@@ -16,6 +16,18 @@ command from this folder
 deno run --allow-net --allow-read ./src/index.ts
 ```
 
+Then, open <http://localhost> in your web browser.
+
+By default, the server listens on port 80. If that port is in use or is
+otherwise unavailable, override the port using the `--port` argument. For
+example, you could run the server on port 8000 as follows:
+
+```
+deno run --allow-net --allow-read ./src/index.ts --port 8000
+```
+
+Then, open <http://localhost:8000> in your web browser.
+
 # Join Our Community
 
 💬 [Join](https://discord.gg/65mah7ZZsG) the official GA Discord server\

diff --git a/tutorials/1-initial-setup/src/index.ts b/tutorials/1-initial-setup/src/index.ts
@@ -1,5 +1,13 @@
-const server = Deno.listen({ port: 80 });
-console.log("File server running on http://localhost:80/index.html");
+import { parse } from "https://deno.land/[email protected]/flags/mod.ts";
+
+const flags = parse(Deno.args, {
+ string: [ "port" ],
+ default: { port: 80 },
+});
+
+const server = Deno.listen({ port: flags.port });
+console.log("File server running on http://localhost:" + flags.port + "/");
+
 const __dirname = new URL(".", import.meta.url).pathname;
 
 for await (const conn of server) {
@@ -9,7 +17,7 @@ for await (const conn of server) {
 async function handleHttp(conn: Deno.Conn) {
  const httpConn = Deno.serveHttp(conn);
  for await (const requestEvent of httpConn) {
- 
+
  const url = new URL(requestEvent.request.url);
  const filepath = decodeURIComponent(url.pathname);
 
@@ -27,4 +35,4 @@ async function handleHttp(conn: Deno.Conn) {
  const response = new Response(readableStream);
  await requestEvent.respondWith(response);
  }
-}
+}
diff --git a/tutorials/2-events/README.md b/tutorials/2-events/README.md
@@ -15,6 +15,18 @@ command from this folder [/tutorials/2-events](/tutorials/2-events):
 deno run --allow-net --allow-read ./src/index.ts
 ```
 
+Then, open <http://localhost> in your web browser.
+
+By default, the server listens on port 80. If that port is in use or is
+otherwise unavailable, override the port using the `--port` argument. For
+example, you could run the server on port 8000 as follows:
+
+```
+deno run --allow-net --allow-read ./src/index.ts --port 8000
+```
+
+Then, open <http://localhost:8000> in your web browser.
+
 # Join Our Community
 
 💬 [Join](https://discord.gg/65mah7ZZsG) the official GA Discord server\

diff --git a/tutorials/2-events/src/index.ts b/tutorials/2-events/src/index.ts
@@ -1,5 +1,13 @@
-const server = Deno.listen({ port: 80 });
-console.log("File server running on http://localhost:80/index.html");
+import { parse } from "https://deno.land/[email protected]/flags/mod.ts";
+
+const flags = parse(Deno.args, {
+ string: [ "port" ],
+ default: { port: 80 },
+});
+
+const server = Deno.listen({ port: flags.port });
+console.log("File server running on http://localhost:" + flags.port + "/");
+
 const __dirname = new URL(".", import.meta.url).pathname;
 
 for await (const conn of server) {
@@ -9,7 +17,7 @@ for await (const conn of server) {
 async function handleHttp(conn: Deno.Conn) {
  const httpConn = Deno.serveHttp(conn);
  for await (const requestEvent of httpConn) {
- 
+
  const url = new URL(requestEvent.request.url);
  let filepath = decodeURIComponent(url.pathname);
  if(filepath === "/") {
@@ -30,4 +38,4 @@ async function handleHttp(conn: Deno.Conn) {
  const response = new Response(readableStream);
  await requestEvent.respondWith(response);
  }
-}
+}
diff --git a/tutorials/3-custom-events/README.md b/tutorials/3-custom-events/README.md
@@ -14,6 +14,18 @@ command from this folder [/tutorials/3-events](/tutorials/3-custom-events):
 deno run --allow-net --allow-read ./src/index.ts
 ```
 
+Then, open <http://localhost> in your web browser.
+
+By default, the server listens on port 80. If that port is in use or is
+otherwise unavailable, override the port using the `--port` argument. For
+example, you could run the server on port 8000 as follows:
+
+```
+deno run --allow-net --allow-read ./src/index.ts --port 8000
+```
+
+Then, open <http://localhost:8000> in your web browser.
+
 # Join Our Community
 
 💬 [Join](https://discord.gg/65mah7ZZsG) the official GA Discord server\

diff --git a/tutorials/3-custom-events/index.ts b/tutorials/3-custom-events/index.ts
@@ -1,5 +1,13 @@
-const server = Deno.listen({ port: 80 });
-console.log("File server running on http://localhost:80/index.html");
+import { parse } from "https://deno.land/[email protected]/flags/mod.ts";
+
+const flags = parse(Deno.args, {
+ string: [ "port" ],
+ default: { port: 80 },
+});
+
+const server = Deno.listen({ port: flags.port });
+console.log("File server running on http://localhost:" + flags.port + "/");
+
 const __dirname = new URL(".", import.meta.url).pathname;
 
 for await (const conn of server) {
@@ -9,7 +17,7 @@ for await (const conn of server) {
 async function handleHttp(conn: Deno.Conn) {
  const httpConn = Deno.serveHttp(conn);
  for await (const requestEvent of httpConn) {
- 
+
  const url = new URL(requestEvent.request.url);
  let filepath = decodeURIComponent(url.pathname);
  if(filepath === "/") {
@@ -32,4 +40,4 @@ async function handleHttp(conn: Deno.Conn) {
  const response = new Response(readableStream);
  await requestEvent.respondWith(response);
  }
-}
+}
diff --git a/tutorials/4-consent-mode/README.md b/tutorials/4-consent-mode/README.md
@@ -13,7 +13,17 @@ Once you install Deno, run the local web server with the following command:
 deno task start
 ```
 
-Then, open [http://localhost](http://localhost) in your web browser.
+Then, open <http://localhost> in your web browser.
+
+By default, the server listens on port 80. If that port is in use or is
+otherwise unavailable, override the port using the `--port` argument. For
+example, you could run the server on port 8000 as follows:
+
+```
+deno task start --port 8000
+```
+
+Then, open <http://localhost:8000> in your web browser.
 
 # Join our community
 

diff --git a/tutorials/4-consent-mode/deno.json b/tutorials/4-consent-mode/deno.json
@@ -1,6 +1,6 @@
 {
  "tasks": {
- "start": "deno run -A --watch=src/public/ src/index.ts"
+ "start": "deno run --allow-net --allow-read --watch=src/public/ src/index.ts"
  },
  "fmt": {
  "files": {

diff --git a/tutorials/4-consent-mode/src/index.ts b/tutorials/4-consent-mode/src/index.ts
@@ -1,4 +1,5 @@
 import { configure, renderFile } from "https://deno.land/x/[email protected]/mod.ts";
+import { parse } from "https://deno.land/[email protected]/flags/mod.ts";
 
 const __dirname = new URL(".", import.meta.url).pathname;
 
@@ -10,9 +11,13 @@ const viewPath = [
 
 configure({ views: viewPath });
 
-const server = Deno.listen({ port: 80 });
+const flags = parse(Deno.args, {
+ string: [ "port" ],
+ default: { port: 80 },
+});
 
-console.log("File server running on http://localhost:80/");
+const server = Deno.listen({ port: flags.port });
+console.log("File server running on http://localhost:" + flags.port + "/");
 
 for await (const conn of server) {
  handleHttp(conn).catch(console.error);