//Method to get alll templates
webService static boolean GetTemplateFromSendGrid(){

 String username = 'xxxxxxxx@gmail.com';
 String password = 'xxxxxxx1234xxxx';
Boolean success;
 Blob headerValue = Blob.valueOf(username + ':' + password);
 String authorizationHeader = 'BASIC ' +
 EncodingUtil.base64Encode(headerValue);
    HttpRequest req = new HttpRequest();
 req.setHeader('Authorization', authorizationHeader);
    req.setEndpoint('https://api.sendgrid.com/v3/templates');
 req.setMethod('GET');
   try{

            //send request
            Http h = new Http();
            HttpResponse res = h.send(req);
      res.setHeader('Content-Type','application/json');
    System.debug('Response from SendGrid:' + res);
            //check response
    String status = res.getStatus();
    if(status.toUpperCase()=='OK'){
      success=true;
    }
    else{
      success=false;
    }
    }
    catch(Exception e){
      System.Debug(LoggingLevel.ERROR,'****** exception ocurred while recieving Template.');
      success=false;
    }

    return success;

}


//Method to send Email - Requesting Body
webService static boolean SendEmailToSendGrid(Id UserId){
  //webService static void SendEmail(){
   string Recipient;
     string RecipientName;
     string CC;
     string Subject;
     string Body;
     boolean Success;


    User u = [SELECT Id, Name, Email,Alias,City,CompanyName,Country,Department,Division,Username FROM User WHERE Id = :UserId];
    //UserInfo.getUserId()
    if (u != Null){
        RecipientName = u.Name;
        Recipient = u.Email;

        CC = 'johny1991@yahoo.com';
      subject = 'Hello ' + u.Name+', ... , This is from SendGrid by Salesforce WebMethod!';
        Body = '<p align=left>Hello <b>' + u.Name+',</b> <br/>This is from send grid <br/> Below are your user details </p> ' +
                    '<br/>Name: '+u.Name+ '<br/>Username: '+u.Username+ '<br/>Alias: '+u.Alias+ '<br/>City: '+u.City+
                    '<br/>CompanyName: '+u.CompanyName+'<br/>Country: '+u.Country+ '<br/>Department'+u.Department+ '<br/>Division: '+ u.Division+
                   '<br/><br/> Thanks, <br/> Salesforce Team <br/>  NSW-EC';
        String requestBody='';
    requestBody += 'to[]='+EncodingUtil.urlEncode(Recipient.trim(),'UTF-8');
         requestBody += '&to[]='+EncodingUtil.urlEncode'xxxxxxxxxx@gmail.com.in','UTF-8');
    requestBody += '&from='+EncodingUtil.urlEncode('xxxxxxx@gmail.com','UTF-8');
    requestBody += '&fromname='+EncodingUtil.urlEncode('Stuart','UTF-8');
    requestBody += '&subject='+EncodingUtil.urlEncode(subject,'UTF-8');
        requestBody += '&text='+EncodingUtil.urlEncode(Body.trim(),'UTF-8');
    requestBody += '&html='+EncodingUtil.urlEncode(Body.trim(),'UTF-8');
        requestBody += '&api_user=xxxxxxxxxxxxx@gmail.com';
    requestBody += '&api_key=xxxxxxxxxx';


        HttpRequest req = new HttpRequest();
        req.setEndpoint('https://sendgrid.com/api/mail.send.json');
        //req.setHeader('Content-Type','application/json');
        req.setMethod('POST');

        req.setBody(requestBody);

        try{

            //send request
            Http h = new Http();

            HttpResponse res = h.send(req);
      res.setHeader('Content-Type','application/json');
    System.debug('Response from SendGrid:' + res);

    //check response
    String status = res.getStatus();
    if(status.toUpperCase()=='OK'){
      success=true;
    }
    else{
      success=false;
    }
    }
    catch(Exception e){
      System.Debug(LoggingLevel.ERROR,'****** exception ocurred sending the email.');
      success=false;
    }
    }
    return success;

}

//Method to send Email using Template
webService static boolean SendEmailUsingTemplate(Id UserId, string temp_id){
  //temp_id ff45ad75-4e8f-40fc-908b-90499086e57e
   string Recipient;
     string RecipientName;
     string CC;
     string Subject;
     string Body;
     boolean Success;
User u = [SELECT Id, Name, Email,Alias,City,CompanyName,Country,Department,Division,Username FROM User WHERE Id = :UserId];
    //UserInfo.getUserId()

    String str=    '{'+
'  "to": ['+
'    "acbd123@gmail.com"'+
'  ],'+
'  "sub": {'+
'    ":name": ["' + u.Name + '"' +
'    ],'+
    '    ":email": ["'+ u.Email +'"'+
'    ],'+
    '    ":city": ["'+ u.City +'"'+
'    ],'+
    '    ":company": ["'+ u.CompanyName +'"'+
'    ],'+
'    ":country": ["'+ u.Country +'"'+
'    ]'+
'  },'+
'  "filters": {'+
'    "templates": {'+
'      "settings": {'+
'        "enable": 1,'+
'        "template_id": "'+ temp_id +'"'+
'      }'+
'    }'+
'  }'+
'}';

    if (u != Null){
        RecipientName = u.Name;
        Recipient = u.Email;

        CC = 'xxxxxxx@yahoo.com';
      Body = '|';
        subject = ' ';
        String requestBody='';
    requestBody += 'to[]='+EncodingUtil.urlEncode(Recipient.trim(),'UTF-8');
         //requestBody += '&to[]='+EncodingUtil.urlEncode('xxxxxxxxxxxx@gmail.com','UTF-8');
    requestBody += '&from='+EncodingUtil.urlEncode('xxxxxxxxxxx@gmail.com','UTF-8');
    requestBody += '&fromname='+EncodingUtil.urlEncode('johnny','UTF-8');
    requestBody += '&subject='+EncodingUtil.urlEncode(subject,'UTF-8');
        requestBody += '&text='+EncodingUtil.urlEncode(Body.trim(),'UTF-8');
    requestBody += '&html='+EncodingUtil.urlEncode(Body.trim(),'UTF-8');
        requestBody += '&x-smtpapi='+str;
        requestBody += '&api_user=xxxxxxxxxxxxx@gmail.com';
    requestBody += '&api_key='xxxxxxxxxx';

        HttpRequest req = new HttpRequest();
        req.setEndpoint('https://sendgrid.com/api/mail.send.json');
        //req.setHeader('Content-Type','application/json');
        req.setMethod('POST');

        req.setBody(requestBody);

        try{

            //send request
            Http h = new Http();

            HttpResponse res = h.send(req);
      res.setHeader('Content-Type','application/json');
    System.debug('Response from SendGrid:' + res);

    //check response
    String status = res.getStatus();
    if(status.toUpperCase()=='OK'){
      success=true;
    }
    else{
      success=false;
    }
    }
    catch(Exception e){
      System.Debug(LoggingLevel.ERROR,'****** exception ocurred sending the email.');
      success=false;
    }
    }
    return success;

}

// Method to get Bounced Emails - Responce Success
webService static void GetBouncedEmails(){
    String requestBody='';
    requestBody += 'start_date='+EncodingUtil.urlEncode('2015-04-03','UTF-8');
        requestBody += '&end_date='+EncodingUtil.urlEncode('2015-04-08','UTF-8');
    requestBody += '&api_user=xxxxxxxxxxx@gmail.com';
    requestBody += '&api_key=xxxxxxx';

        HttpRequest req = new HttpRequest();
    req.setEndpoint('https://api.sendgrid.com/api/bounces.get.json');
    req.setMethod('POST');
        req.setHeader('Content-Type','application/x-www-form-urlencoded');
    req.setBody(requestBody);
        req.setHeader('Content-Length',String.valueof(requestBody.length()));

        try{
      //send request
      Http h = new Http();
      System.HttpResponse res = h.send(req);


     System.debug('Response from SendGrid :' + res);

/*  JSON2Apex deserlaizedResponse = new JSON2Apex();
    deserlaizedResponse  = JSON2Apex.parse(String.valueof(res));
    System.debug('deserlaizedResponse: ' + deserlaizedResponse);
     string status = deserlaizedResponse.Status;
     string reason  = deserlaizedResponse.reason;
     string email = deserlaizedResponse.email;
   System.debug('response from bounce report: ' + status + reason + email);
*/
              }
    catch(Exception e){

    }
   // return true;
}

public getBounceResponse(){

 }
}*/