js_examples: Migrate and test get_stream_topics example.

templates/zerver/api/get-stream-topics.md

@@ -12,20 +12,8 @@
 {tab|js}
 
 More examples and documentation can be found [here](https://github.com/zulip/zulip-js).
-```js
-const zulip = require('zulip-js');
 
-// Pass the path to your zuliprc file here.
+{generate_code_example(javascript)|/users/me/{stream_id}/topics:get|example}
-const config = {
-    zuliprc: 'zuliprc',
-};
-
-zulip(config).then((client) => {
-    // Get all the topics in stream with ID 1
-    return client.streams.topics.retrieve({ stream_id: 1 });
-}).then(console.log);
-
-```
 
 {tab|curl}
 

zerver/openapi/javascript_examples.js

@@ -42,6 +42,7 @@ const ExamplesHandler = function () {
         await generate_validation_data(client, examples.get_messages);
         await generate_validation_data(client, examples.get_own_user);
         await generate_validation_data(client, examples.get_stream_id);
+        await generate_validation_data(client, examples.get_stream_topics);
 
         console.log(JSON.stringify(response_data));
         return;
@@ -158,4 +159,11 @@ add_example('get_stream_id', '/get_stream_id:get', 200, async (client) => {
     // {code_example|end}
 });
 
+add_example('get_stream_topics', '/users/me/{stream_id}/topics:get', 200, async (client) => {
+    // {code_example|start}
+    // Get all the topics in stream with ID 1
+    return client.streams.topics.retrieve({ stream_id: 1 });
+    // {code_example|end}
+});
+
 main();