Send Email using SharePoint Rest API

We have a requirement to send email vai SharePoint Rest API. We dig and find the below solution to send email using SharePoint API.

Point Must be remember

1. End point "/_api/SP.Utilities.Utility.SendEmail" end point to send email. 
2. In JSON __metadata we used the type "SP.Utilities.EmailProperties".
3. The User / Group must have a read permission for particular site. where we placed this site code.

JS Dependency 

1. JQuery

Code URL: https://gist.github.com/BasantPandey/05189832546f2c6cc0bd008fcfec3264#file-sharepointsendemail-js

Code 

var Email= function(){
	// Email Either email groupname or email address
	var from = 'abc.yahoo.com',
	to = 'abc.yahoo.com',
	cc = 'abc.yahoo.com',
	subject='My Email Subject';
	this.options = this.options || {};
	this.options['fromEmail'] = this.options['fromEmail'] || {};
	this.options['toEmail'] = this.options['toEmail'] || {};
	this.options['ccEmail'] = this.options['ccEmail'] || {};
	this.options['subject'] = this.options['subject'] || {};
	this.options['fromEmail'] = from;
	this.options['toEmail'] = to;
	this.options['ccEmail'] = cc;
	this.options['subject'] = subject;
	}
	function sendEmail(emailObj,body) {
	var that =emailObj;
	//Get the relative url of the site
	var siteurl = _spPageContextInfo.webServerRelativeUrl;
	var urlTemplate = siteurl + "/_api/SP.Utilities.Utility.SendEmail";
	$.ajax({
	contentType: 'application/json',
	url: urlTemplate,
	type: "POST",
	data: JSON.stringify({
	'properties': {
	'__metadata': {
	'type': 'SP.Utilities.EmailProperties'
	},
	'From': that.options.fromEmail,
	'To': {
	'results': [that.options.toEmail]
	},
	'CC': {
	'results': [that.options.ccEmail]
	},
	'Body': body,
	'Subject': that.options.subject
	}
	}),
	headers: {
	"Accept": "application/json;odata=verbose",
	"content-type": "application/json;odata=verbose",
	"X-RequestDigest": jQuery("#__REQUESTDIGEST").val()
	},
	success: function (data) {
	},
	error: function (err) {
	// alert('Error in sending Email: ' + JSON.stringify(err));
	alert('Error in sending Email', 1);
	}
	});
	}
	var sendEmailObj = new Email();
	var emailbody = 'hi this is email body';
	sendEmail(sendEmailObj,emailbody);