Exporting API definitions from Azure API Management Services

Ilias el Matani

Introduction

I am currently working on backend development for a new software project. The front-end team has requested OpenAPI documentation, which is essential for their understanding and interaction with the backend (micro)services. Since I am using Azure API Management Service as the API gateway, behind which the actual backend (micro)services are invoked, there's a need for Swagger endpoint documentation. However, it's important to note that Azure API Management does not automatically support Swagger in the same way as the Swashbuckle package does for APIs in ASP.NET.

The challenge with Azure API Management

Unlike some platforms that automatically generate a Swagger page, Azure API Management only supplies the API definition file. This file is the starting point, but additional steps are needed to create a user-friendly Swagger documentation page.

Steps to export API definitions

Accessing Azure API Management Services

  1. Navigate to Azure API Management Services: Log into your Azure portal.
  2. Select APIs: Under 'APIs', find the specific API you're working with.

Exporting the API definition

  1. Open the Context Menu: Next to your selected API, click on the context menu indicated by three dots ('...').
  2. Choose 'Export': From the dropdown, select the 'Export' option. This allows you to export the API definitions in Swagger format.

Leveraging the exported definitions

The exported Swagger file can be imported into API client tools like Postman. This enables API developers to start calling the API with minimal setup time. Another option is to use the Swagger online editor (https://editor.swagger.io/). This tool allows you to upload the definition file and generate a comprehensive Swagger documentation page.

Conclusion

Exporting API definitions from Azure API Management Services is a straightforward process that bridges the gap between backend and frontend development. By following these steps, you can quickly provide the necessary API documentation to facilitate seamless integration and collaboration within your development team.