Trigger Azure Pipelines build via API

Question

I made a working Azure Pipeline to build my codebase.

Looking for a way to trigger the Azure Pipelines build via API, ideally REST. If REST is not possible, perhaps I could try invoking the build via Azure Functions using a resource ID of sorts. I would like my own repository monitor to issue an API request that would trigger the build when my conditions are met. Another question - is it possible to set "pipeline variables" via API - e.g. I make an API call passing values to be used as my pipeline variables' values then triggers the build.

Thank you

Answer 1

You can use the VSTS REST API or DevOps REST API to queue the build by giving the ID

VSTS POST:

https://account.visualstudio.com/project/_apis/build/builds?api-version=4.1

DevOps POST:

https://dev.azure.com/account/project/_apis/build/builds?api-version=6.1-preview.6

Body

{ 
        "definition": {
            "id": number
        } 
}

Refer to this solution

For your second question, Yes this is also possible, Just giving the parameters within the body

DevOps Body

{
    "parameters":  "{\"Parameter1\":  \"a value\"}",
    "definition":  {
                       "id":  2
                   }
}

Reference

Note: For these API calls make sure you use Basic Auth and pass a Personal Access Token as the value