How to call webservice with body parameters in power bi?

Hi All,

we are trying to consume a webservice in power bi i.e using web content() .

This is the lm language script that we have got on search.

Web.Contents("http://some.url", [Headers=[ #"Content-Type"="application/json"]])​

OUR json consist of following input parameters to be passed in body

input:

{

          "projectCode":"xyz",

         "index":0,

         "searchString":"",

          "filterColumn":"",

          "filterType":"" }

we dont know how to pass these parameters while consuming  this web service URL .

Please suggest.