Azure Build Pipeline - Pause and Enable DefinitionQueueStatus change REST API - azure

Question

We have many dozens of build pipelines and we want to pause and resume (re-enable) build pipelines from a simple webapp interface as we are making config changes frequently. Here is the MS doc explaining this API:
https://learn.microsoft.com/en-us/rest/api/azure/devops/build/builds/update%20build?view=azure-devops-rest-5.0#definitionqueuestatus
From this documentation, it appears I need to hit the REST API and change/toggle the DefinitionQueueStatus -- however, this documentation only shows a sample for a build specific operation, whereas I want to pause then re-enable the entire build pipeline. What is the proper way to make this call?
I'm using fetch - and I've tried many dozen formats in the call - the 'ourorg' and 'ourproject' are correct (we use this call structure for many other calls), but all fails for this call below. I grabbed the 'definitionID' from the URL I can visibly see when in the Azure devops portal on the specific build pipeline page, and I'm using it for the {buildID} as I don't know what else to put there. Any guidance to help here is appreciated - I don't need to use fetch btw - any working sample will help here:
fetch(https://dev.azure.com/our_org/our_projectname/_apis/build/builds/definitionId=1593?retry=true&api-version=5.0 {
method: 'PATCH ',
credentials: 'same-origin',
body: 'DefinitionQueueStatus: "Enabled"'
}).then(function(response) {
console.log(response);
})

Answer 1

It seems that the body is incorrect in your post. Here is sample about how to use POSTMAN to access Azure DevOps Services REST APIs.
Generate the PAT, and then record the token, it is important to use to authorization, please see this document.
Create a new request in POSTMAN, it is recommended to put the request in a collection for Azure DevOps Services REST API;
Select the authorization as Basic Auth, you can input the username as any value, and the password as the token which is generated in step1.
Basic Auth
Set the REST API which you want to use,and select the request method type(GET,POST,FETCH ....), here you use https://dev.azure.com/{organization}/{project}/_apis/build/builds/{buildId}?api-version=5.0.
In the Body tab, you can set the request body as raw in json format, and input the value as following:
{
"buildNumber":"#20190607.2",
"buildNumberRevision":1,
"definition":
{
"id":1,
"createdDate":null,
"queueStatus":"paused"
}
}
Everthing is ready now, you can send the request, if sccuess, you will get the response from the REST API.
In your post, the body content is incorrect, the Request Body should meet the format in the REST API document. The DefinitionQueueStatus is a type in definitions. In addition, if you send the request with parameter retry, you will get the message The request body must be empty when the retry parameter is specified..