fix: remove unused request dependency

Author: rbnayax

FETCH_MIGRATION.md

@@ -56,7 +56,7 @@ Code will be on the `master` branch.
     -   [x] migrate src/watch.ts and its tests to fetch api from request
         -  [x] remove decprecated requestImpl and RequestInterface
         -  [x] implement queryParams parameter in watch method by injecting them into the fetch call
-        -  [ ] update tests in src/watch_test.ts
+        -  [x] update tests in src/watch_test.ts
 -   [ ] Fix errors in test (due to new api)
 -   [ ] Test all features
 -   [ ] Fix examples and validate their param signatures (due to new api)

src/watch.ts

@@ -68,7 +68,16 @@ export class Watch {
 
         await fetch(watchURL, requestInit)
             .then((response) => {
-                response.body.pipe(stream);
+                if (response.status === 200) {
+                    response.body.on('error', doneCallOnce);
+                    response.body.pipe(stream);
+                } else {
+                    const error = new Error(response.statusText) as Error & {
+                        statusCode: number | undefined;
+                    };
+                    error.statusCode = response.status;
+                    throw error;
+                }
             })
             .catch(doneCallOnce);