API specification formats
When defining an API, it’s important to document the definition in a way that people can understand. However, that’s not enough. API definition documents should also be understandable by code. In the end, API definition documents are meant to be interpreted and used by the software. API servers and brokers can use definition documents to programmatically make the features available to consumers and subscribers. On the other hand, consumers and subscribers can use the same documents to interact with the API producers. API definition documents are the glue between producers and consumers. There are different types of API specification formats that work well with APIs of different types. Let’s look at the most popular specification formats to understand what they are and what types of APIs you can define with them.
OpenAPI
This is probably the most popular API specification format. OpenAPI started with a different name. It was created...