Paul McDonald just announced the new Blogger JavaScript client library over on the Google Data APIs Blog:

The Blogger GData JS Client library enables developers to read and write blog posts using calls to our JavaScript library. This is a full client library, with support for authenticated access to private data and read-write capabilities. Now you can create Blogger applications and mashups that can read and write data from your Blogger blogs. No server-side programming is required. Your application can run on any domain, too. No proxying is required.

We have a new developer guide for JavaScript and some code samples to give you ideas and get you started.

Hopefully, you’re really enjoying the Blogger API and the flexibility of being able to post to your blog using your own custom software. Sometimes things don’t work quite the way you’d expect or like and we want to hear about it.

If you find a bug in our Google Data API implementation, or something that we could do better, please file an issue in our tracker.

We use this to keep track of issues with all of the Google data APIs, so be sure to mention that you’re talking about Blogger when writing your description. While you’re at it, I’d like to hear about it on the discussion group too.

We’re going to start coordinating this external issue tracker with our internal development, so we’ll update the relevant issues if we ship fixes to them.