Parameters

Object options/String requestType
If you pass a string, you can pass the request type (get, post). If you pass an object, it will be passed into the request module API (see module API options). If an object is passed, you do not need to pass any other parameters. You may also set alwaysReadBody: true in this object to allow documents (such as JSON documents) to be received even when the HTTP status code would normally indicate an error.
String URL
The endpoint to your web service.
String|Object Body (optional)
The body of the request. If you pass in an object, it will send the request in JSON and it will also return JSON. Otherwise, it will pass as text and return a String.

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