Issue with importing from @google/genai/node fails in Cloudflare Workers environment

[d3lm]

Problem

When importing directly from @google/genai/node in a Cloudflare Worker, the application fails due to limited Node.js compatibility in the Workers environment.

The specific error occurs in the google-logging-utils package when checking if colors should be enabled. The function attempts to call stream.getColorDepth() on the proxied process.stderr object, resulting in:

Uncaught TypeError: Cannot convert object to primitive value

Investigation

The issue occurs in the isEnabled method of the Colours class in googleapis/gax-nodejs/logging-utils/src/colours.ts](https://github.com/googleapis/gax-nodejs/blob/main/logging-utils/src/colours.ts#L55) where it makes this check:

stream.getColorDepth() > 2

Since Cloudflare Workers only provide a polyfilled version of process.stderr using a Proxy, this function call fails.

Temporary Fix

I've temporarily patched the dependency by adding try/catch error handling:

@@ -28,10 +28,14 @@ class Colours {
      * @returns true if the stream should have colourization enabled
      */
     static isEnabled(stream) {
-        return (stream.isTTY &&
-            (typeof stream.getColorDepth === 'function'
-                ? stream.getColorDepth() > 2
-                : true));
+        try {
+            return (stream.isTTY &&
+                (typeof stream.getColorDepth === 'function'
+                    ? stream.getColorDepth() > 2
+                    : true));
+        } catch (error) {
+            return false;
+        }
     }
     static refresh() {
         Colours.enabled = Colours.isEnabled(process.stderr);

This patch gracefully handles the error by defaulting to disabled colors when the check fails.

[amirh]

I'm expecting more incompatibilities with the Cloudflare Workers js environment than just stream.getColorDepth.
I'm unfamiliar with Cloudflare Workers, is there a way to run their js runtime locally or on CI for testing/debugging without actually running a real worker?

Update: Gemini says miniflare

[d3lm]

Actually, we already use this in production and that was the only issue we ran into so far. But we had to patch that one dependency to make it work.

[d3lm]

Yea, miniflare is with the older version of wrangler. These days, it uses workerd.