title: How to take http request in the form of json payload in Google cloud functions
body: <p>I got this assignment from an internship :</p>
  <p>Develop a micro service for google cloud function which will take in two sets of arrays as an input from http request in the form of JSON payload and will combine both the arrays and write the result after sorting and combining both the arrays. Function should complete its executions within 180 seconds. Use python language to execute your code.</p>
  <p>While I have the algorithm and code done,I have no clue about what the json payload is and how to do it</p>