如何从递归请求返回承诺并在数据与条件匹配时解决？

I'm consuming an API that returns JSON, and on this page I have a progress bar indicating various steps toward setting something up at the user's request. Each subsequent AJAX request's success callback initiates the next request, because they need to be done in sequence. One step issues a server-side background job and the endpoint returns a transaction ID.I'm consuming an API that returns JSON, and on