involve Batch Operation CRM 2016 Web Api

CRM 2016 has been support for execute Batch Operation which using API. Here are the basic steps that we can consume this amazing feature of CRM 2016.

Example situation: my company need to create multiple task for new account.

Create 1 Js web resource method that will handle batch request

Function executeBatch (payload, batchId, successCallback, errorCallback, callerId) {

var req = new XMLHttpRequest();

req.open(“POST”, “Your Web Api Here” + “$batch”), true);

req.setRequestHeader(“Accept”, “application/json”);

req.setRequestHeader(“Content-Type”, “multipart/mixed;boundary=batch_” + batchId);

req.setRequestHeader(“OData-MaxVersion”, “4.0”);

req.setRequestHeader(“OData-Version”, “4.0”);

req.onreadystatechange = function () {

if (this.readyState == 4 /* complete */) {

req.onreadystatechange = null;

if (this.status == 200) {

if (successCallback) {

successCallback(this.response);

}

}

else {

if (errorCallback)

errorCallback(Sdk.WebApiOperation.errorHandler(this));

}

}

};

req.send(payload);

}

Create CreateBatchTaskforAccount method to create task for new account

function CreateBatchTaskforAccount(accountUri )

{

//Generating random id for the payload object

var batchId = GetRandomId();

//Define tasks to be created:

var firstTask = {

subject: “new task for new account” + accountUri,

“regardingobjectid_account_task@odata.bind”: accountUri

};

//Note: Imortant here

var secondTask = {

subject: “second task”,

“regardingobjectid_account_task@odata.bind”: accountUri

};

//Start of ChangeSet

payload = [“–batch_” + batchId]

payload.push(“Content-Type: multipart/mixed;boundary=changeset_” + changeSetId);

payload.push(“”);

//First item in ChangeSet

payload.push(“–changeset_” + changeSetId);

payload.push(“Content-Type: application/http”);

payload.push(“Content-Transfer-Encoding:binary”);

payload.push(“Content-ID: 1”);

payload.push(“”);

payload.push(“POST ” + CrmSdk.RBEIApi.getWebApiUrl() + “tasks HTTP/1.1”);

payload.push(“Content-Type: application/json;type=entry”);

payload.push(“”);

payload.push(JSON.stringify(firstTask));

//Second item in ChangeSet

payload.push(“–changeset_” + changeSetId);

payload.push(“Content-Type: application/http”);

payload.push(“Content-Transfer-Encoding:binary”);

payload.push(“Content-ID: 2”);

payload.push(“”);

payload.push(“POST ” +  CrmSdk.RBEIApi.getWebApiUrl() + “tasks TTP/1.1”);

payload.push(“Content-Type: application/json;type=entry”);

payload.push(“”);

payload.push(JSON.stringify(secondTask));

//End of ChangeSet

payload.push(“–changeset_” + changeSetId + “–“);

payload.push(“”);

//Adding a GET request outside of the ChangeSet

payload.push(“–batch_” + batchId);

payload.push(“Content-Type: application/http”);

payload.push(“Content-Transfer-Encoding:binary”);

payload.push(“”);

//Retrieve all the tasks related to the account

payload.push(“GET ” + accountUri + “/Account_Tasks?$select=subject HTTP/1.1”);

payload.push(“Accept: application/json”);

payload.push(“”);

payload.push(“–batch_” + batchId + “–“);

executeBatch(payload.join(“\r\n”), batchId, function (response) {

alert(response);

}, function (error) {

alert(error);

});

}

//Generating random id for Payload object

Function GetRandomId (idLength) {

if (this.isNullOrUndefined(idLength))

idLength = 10;

if (this.isNumber(idLength)) {

if (idLength > 30) {

throw new Error(“Length must be less than 30.”);

}

}

else {

throw new Error(“Length must be a number.”);

}

var returnValue = “”;

var characters = “ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789”;

for (var i = 0; i < idLength; i++)

returnValue += characters.charAt(Math.floor(Math.random() * characters.length));

return returnValue;

}

Now we just add this CreateBatchTaskforAccount to OnSave of Account form (Call in create new account). After saving account, 2 tasks will be added for it.