Dropsource does not currently provide the ability to set custom request headers inside the editor - however, depending on what data you need to pass in the header of a request, you may be able to achieve this via your Swagger/OpenAPI specification. One of our users recently asked if it would be possible to include two pieces of data in the header of a request - this is the guidance we gave them:
Include your two variables in the “securityDefinitions” in your Swagger and in each route that you need these variables to be sent for, you can set values for them inside Dropsource in the auth modal you’ll see in the API tab next to the API name (rather than in the parameters section of the request).
See the padlock button here:
You can set the values statically or using e.g. Device Variables if you want to set them dynamically while the app runs.
This example illustrates what it might look like in your Swagger: