Creating a record from JavaScript using the Xrm.WebAPi in Dynamics 365 V9

Create Record:

Let’s see how we can create a “Lead” record using newly introduced
 Web API calls in Dynamics 365 V9

Xrm.WebApi.createRecord(“entityLogicalName”,data).then(successCallback,errorCallback);

// This line of code is required if you are creating from HTML webresource.

<script src="ClientGlobalContext.js.aspx" type="text/javascript"></script>

var entityData =

                {

                    "subject": “leadFromWebApi”,

                    "lastname": “Ram”

                }

Xrm.WebApi.createRecord("lead", entityData).then(

                    function success(result)

                    {

                        alert("Record Created successfully and Id is: " + result.id);

                        console.log("Account created with ID: " + result.id);

                    },

                    function (error)

                    {

                        console.log(error.message);       

                    });