Updated Intro to API documentation topic
I updated the Introduction to API documentation topic in my API doc course in a couple of significant ways. First, I expanded on the many different types of APIs out there (beyond REST). The list now native library APIs, SOAP APIs, RPC-based APIs, gRPC APIs, REST APIs, Voice Assistant APIs, and IoT APIs. I also incorporated research from Smartbear's impressive report called The State of API 2019, which is well worth a read on its own.
You can read the updated topic here: Introduction to REST API documentation.
About Tom Johnson

I'm a technical writer based in the Seattle area. In this blog, I write about topics related to technical writing and communication — such as software documentation, API documentation, visual communication, information architecture, writing techniques, plain language, tech comm careers, and more. Check out simplifying complexity and API documentation for some deep dives into these topics. If you're a technical writer and want to keep on top of the latest trends in the field, be sure to subscribe to email updates. You can also learn more about me or contact me.