Add support for Node.js platform on JS / TS templates (#390)

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Add support for Node.js platform on Javascript / Typescript templates. ([bug 1728982](https://bugzilla.mozilla.org/show_bug.cgi?id=1728982))
+
 ## 4.0.0 (2021-08-20)
 
 - Add support for Text metric type ([#374](https://github.com/mozilla/glean_parser/pull/374))

glean_parser/javascript.py

@@ -11,7 +11,7 @@ Outputter to generate Javascript code for metrics.
 import enum
 import json
 from pathlib import Path
-from typing import Any, Dict, List, Optional, Union, Callable  # noqa
+from typing import Any, Dict, Optional, Callable
 
 from . import metrics
 from . import util
@@ -123,9 +123,10 @@ def output(
         options = {}
 
     platform = options.get("platform", "webext")
-    if platform not in ["qt", "webext"]:
+    accepted_platforms = ["qt", "webext", "node"]
+    if platform not in accepted_platforms:
         raise ValueError(
-            f"Unknown platform: {platform}. Accepted platforms are qt and webext."
+            f"Unknown platform: {platform}. Accepted platforms are: {accepted_platforms}."  # noqa
         )
     version = options.get("version")
     if platform == "qt" and version is None: