Gemini live translation

wuchale can use Gemini to translate messages on-the-fly, during development or during the CLI invokation. When coupled with the HMR support, you can get a seamless experience where you edit the source code in one language and see the updates in the browser in another language live.

Gemini was chosen particularly because it has free (limited) access to use it with an API key. You can get your own free API key from Google AI Studio. Once you have that, you can set it to the environment variable:

export GEMINI_API_KEY=your_api_key

And then you can use wuchale as normal: start the dev server or use the CLI command. It will pick up the untranslated messages and translate them using Gemini.

Usage limit optimization

wuchale is designed to keep the number of requests as low as possible in order not to exceed the limit. How:

Request queue

For many consecutive requests, it uses a request queue. But the queue doesn’t grow more than 2. Because while the first request is being processed, any new request that comes after the second one is incorporated into the second one.

You can see that this works while using it, it prints messages to the console when making a new request and when adding to an existing request.

No re-translation

Once a message is translated, it is stored in the catalog, just like a human translated it. And wuchale never makes another request to translate that same message.