ve_formdata-post

Virtual Endpoint Example

This virtual endpoint will make an HTTP POST request to a mock upstream which echoes the request. The request includes FormData.

1. Import the API into Tyk

Import the API definition located in this directory

2. Make API Call

Make an API call to invoke this serverless function:

$ curl localhost:8080/mock/virtual/

{
  "args": {},
  "data": "",
  "files": {},
  "form": {
    "hello": "world"
  },
  "headers": {
    "Accept-Encoding": "gzip",
    "Content-Length": "11",
    "Content-Type": "application/x-www-form-urlencoded",
    "Host": "httpbin.org",
    "User-Agent": "Go-http-client/1.1",
    "X-Amzn-Trace-Id": "Root=1-5f2ae014-f2b1f58059f18f55b9982181"
  },
  "json": null,
  "origin": "99.242.138.81",
  "url": "http://httpbin.org/post"
}

Note the echo'd response contains the form parameters "hello=world"!

Here's the actual Javascript Virtual Endpoint code:

function myUniqueFunctionName(request, session, config) {
  var responseObject = { 
    Body: "", 
    Code: 200 
  }
  
  response = logic(request)
  responseObject.Body = response.Body
  
  return TykJsResponse(responseObject, session.meta_data)
}

function logic(request) {
    //Make api call to upstream target
    postRequest = {
        "Method": "POST",
        "FormData": {"hello":"world"},
        "Headers": {"content-type":"application/x-www-form-urlencoded"},
        "Domain": "http://httpbin.org",
        "Resource": "/post"
    };
    var postRequestStr = JSON.stringify(postRequest)
    log("postRequestStr object: " + postRequestStr)
    
    rawlog("--- before upstream ---")
    responseObjectRaw = TykMakeHttpRequest(postRequestStr);
    rawlog("--- After upstream ---")
    
    responseObject = JSON.parse(responseObjectRaw);
    log('responseObject: ' + JSON.stringify(responseObject));
    return responseObject;
}