![]() ![]() In the code editor of the Design tab, add the line: openapi: 3.0.3. You’ll see an error because you still have to tell Insomnia which version of OpenAPI you’ll be using. Finally, the last pane on the right is a real-time preview of the document. This editor also detects errors automatically and notifies you of them at the bottom. The middle pane contains the code editor that you’ll use to write the OpenAPI document in YAML. The first pane shows an overview of your document, such as the routes of your API and components you’ve defined (you’ll learn more about those later). You should now see three panes, as shown in the following screenshot below. This will make Insomnia use spaces instead of tabs. In the Font section, uncheck Indent with Tabs and close the Preferences window. This will be fixed in a later update, but for now, open your Preferences by clicking the cogwheel icon on the top right, or by pressing Ctrl/Cmd +. Insomnia, however, indents with tabs by default. Note: YAML by design only accepts spaces as indentation. Making a table or something similar is helpful so that you don’t forget any route (which can happen if the API is big). The below table shows the method, route path, and description of each of the five routes you will document in this tutorial. Since this API is quite large, you will only be documenting the /posts section in this tutorial. #INSOMNIA API DEBUGGER FREE#This tutorial will use the JSON Placeholder API, which is a free mock API. OpenAPI allows you to define request bodies, headers, cookies, and even possible responses for each API route. Since you’ll be documenting the API for others, and because you may also refer back to this documentation in the future, it’s important to note everything you need to document. In this step, you’ll note the routes your API accepts and their relevant parameters and responses. You’ll also need the git cli tool installed so you can push to GitHub. You can create a new repository by following GitHub’s quick start guide, Create a new GitHub Repository. A GitHub account and a new repository created for this project.Prior experience with Backend Web Development, which you can gain from MDN Web Docs.Familiarity with YAML, which you can gain from the documentation.NodeJS v12 or up installed on your local machine.Insomnia downloaded and installed on your local machine.This tutorial will use the JSON Placeholder API. If you’d like to create your own, you can check the DigitalOcean Community site for some tutorials. In this tutorial, you will learn more about OpenAPI, document your API according to the OpenAPI Spec in Insomnia, and host this documentation on GitHub Pages with Redoc. You’ll also deploy your Redoc generated site to GitHub Pages, which is a free website hosting solution by GitHub. Redoc takes the OpenAPI document you generated and gives you an HTML page that displays a nice-looking and interactive version of your documentation. YAML is a good choice for API documentation because these documents can get very large, and a JSON document would get cluttered and hard to read.įinally, you’ll host the API documentation with Redoc, an open-source application used by many companies. Insomnia doesn’t support JSON, but it does make it easy to write YAML. To create the documentation, you’ll use Insomnia, a free and open-source application that allows you to test your API and design the documentation with a real-time side-by-side preview. Many services support OpenAPI, so you can pick and choose, or even use multiple services, without having to change your API documentation’s format. This specification defines what fields your JSON/YAML file must contain and how it will be reflected on the documentation service you’ll use to host it. An OpenAPI file is a JSON or YAML file that follows the OpenAPI specification. In this tutorial, you will document your API using the OpenAPI specification (v3). The author selected the COVID-19 Relief Fund to receive a donation as part of the Write for DOnations program. ![]()
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