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+# Fetch Data
+
+When building any sort of web application developers will usually need to
+retrieve data from somewhere else on the web. This works no differently in Deno
+than in any other JavaScript application, just call the the `fetch()` method.
+For more information on fetch read the
+[MDN documentation](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API).
+
+The exception with Deno occurs when running a script which makes a call over the
+web. Deno is secure by default which means access to IO (Input / Output) is
+prohibited. To make a call over the web Deno must be explicitly told it is ok to
+do so. This is achieved by adding the `--allow-net` flag to the `deno run`
+command.
+
+**Command:** `deno run --allow-net fetch.ts`
+
+```js
+/**
+ * Output: JSON Data
+ */
+const json = fetch("https://api.github.com/users/denoland");
+
+json.then((response) => {
+  return response.json();
+}).then((jsonData) => {
+  console.log(jsonData);
+});
+
+/**
+ * Output: HTML Data
+ */
+const text = fetch("https://deno.land/");
+
+text.then((response) => {
+  return response.text();
+}).then((textData) => {
+  console.log(textData);
+});
+
+/**
+ * Output: Error Message
+ */
+const error = fetch("https://does.not.exist/");
+
+error.catch((error) => console.log(error.message));
+```