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SMS-to-Lead
/*
* SmsToLead.cls
*
* Shows how to receive SMS messages in Apex Code, creating Leads in a Campaign
*/
@RestResource(urlMapping='/smstolead')
global class SmsToLead {
static TwilioAccount account = TwilioAPI.getDefaultAccount();
@future(callout=true)
public static void reply(String fromNumber, String toNumber, String message) {
Map<String, String> params = new Map<String, String>{
'From' => fromNumber,
'To' => toNumber,
'Body' => message
};
TwilioSms sms = account.getSmsMessages().create(params);
System.debug('Sent SMS SID: '+sms.getSid());
}
@HttpPost
global static void incomingSMS() {
// This will error out with System.LimitException if we would exceed
// our daily email limit
Messaging.reserveSingleEmailCapacity(1);
String expectedSignature =
RestContext.request.headers.get('X-Twilio-Signature');
String url = 'https://' + RestContext.request.headers.get('Host') +
'/services/apexrest' + RestContext.request.requestURI;
Map <String, String> params = RestContext.request.params;
// Validate signature
if (!TwilioAPI.getDefaultClient().validateRequest(expectedSignature, url, params)) {
RestContext.response.statusCode = 403;
RestContext.response.responseBody = Blob.valueOf('Failure! Rcvd '+expectedSignature+'\nURL '+url/*+'\nHeaders'+RestContext.request.headers*/);
return;
}
// Twilio likes to see something in the response body, otherwise it reports
// a 502 error in https://www.twilio.com/user/account/log/notifications
RestContext.response.responseBody = Blob.valueOf('ok');
// Extract useful fields from the incoming SMS
String leadNumber = params.get('From');
String campaignNumber = params.get('To');
String leadEmail = params.get('Body');
// Try to find a matching Campaign
Campaign campaign = null;
try {
campaign = [SELECT Id, Name, NumberSent FROM Campaign WHERE Phone__c = :campaignNumber LIMIT 1];
} catch (QueryException qe) {
reply(campaignNumber, leadNumber, 'No Campaign configured. Sorry.');
return;
}
// Create and insert a new Lead
Lead lead = new Lead(LastName = 'From SMS',
Company = 'From SMS',
Email = leadEmail,
Phone = leadNumber);
try {
insert lead;
} catch (DmlException dmle) {
String message = (dmle.getDmlType(0) == StatusCode.INVALID_EMAIL_ADDRESS)
? leadEmail+' doesn\'t look like an email address. Please try again.'
: 'An error occurred. Sorry.';
reply(campaignNumber, leadNumber, message);
return;
}
// Link the Lead to the Campaign
insert new CampaignMember(CampaignId = campaign.Id, LeadId = lead.Id);
// We're done - send an SMS
reply(campaignNumber, leadNumber, 'Thanks for registering. We\'ll send you a confirmation email!');
// Send an email, recording it as an activity
Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
mail.setTargetObjectId(lead.Id);
mail.setSaveAsActivity(true);
mail.setSenderDisplayName(campaign.Name);
mail.setSubject('Welcome!');
mail.setPlainTextBody('Thanks for registering!');
Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });
}
}
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