Planning
Throughout this point in the development process, the goals and needs of the API are outlined. This involves deciding the functionality and features that will be accessible through the API, as well as the purpose of the API itself, who the intended audience is, and how they will interact with the API. During the planning stage, you will also need to take into account certain technical and business factors. Some examples of these include selecting a suitable programming language, frameworks, and architecture, as well as defining the API documentation and developing a versioning strategy.