How to pass a Bearer Token using Azure Logic Apps

However, we found that the documentation for generating and passing bearer tokens in Logic Apps was a bit limited, so we wanted to take a moment to capture our technical notes on the subject and (hopefully) make life a bit easier for you going forward.

Officially dubbed as a “workflow engine,” Logic Apps is a service on Microsoft’s Azure cloud platform that provides a user-friendly interface for creating “logic-based” solutions for applications (hence the name). It offers several connectors and integrations out-of-the-box making it easy to utilize in just about any situation.

For the purposes of this article we will be limiting our discussion to using Logic Apps to communicate with an API.

At a high level, a token is a computer-generated key that is created by an API server that authorizes your access to the API server. Most API documentation will provide an endpoint for generating tokens. Here’s an example:

Token endpoints will often require you to pass along additional information in the body (such as a “secret key” or an “app name”), which allows the API server to generate the correct type of key for your access level. A properly formatted HTTP request will ultimately return an access token (typically in JSON format) that can be attached to subsequent HTTP requests.

At this point you can use the token to make subsequent requests to the API server. A token conveys to the server that you have been pre-authorized and are allowed to make specific API requests. Failure to supply a valid token…

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