I have a PHP site that calls a REST end point on Salesforce via a visualforce page. When trying to validate the JSON response I confirmed all required fields but am now getting this error:
{"success":false, "message":"System.NullPointerException: Attempt to de-reference a null object
This is coming from the following Apex Class:
public class WebDirectController {
public class ApiException extends Exception {}
public String response {get;set;}
private static final String PRIVATE_APPLICATION_KEY = '123';
public WebDirectController(){}
public Pagereference safeAction(){
Savepoint sp = Database.setSavepoint();
String businessUnit;
try {
Map<String, String> params = ApexPages.currentPage().getParameters();
for (String key : params.keySet()){
system.debug(key +' -> '+ params.get(key));
}
if (params.containsKey('Business_Unit__c') == false){
throw new ApiException('Unauthorized!');
}
businessUnit = params.get('Business_Unit__c');
if (params.containsKey('applicationKey') == false){
throw new ApiException('Unauthorized!');
}
if (params.get('applicationKey') != PRIVATE_APPLICATION_KEY){
throw new ApiException('Unauthorized!');
}
// throws ApiException
validateRequiredFields(params);
WebDirectUtility utility = new WebDirectUtility(businessUnit);
utility.duplicateCheck(params);
if (utility.duplicateAccountList.isEmpty() == false){
// if last opp is needs RX attach attachments to opp and flag opportunity
if (utility.duplicateAccountList.get(0).Opportunities.isEmpty() == false
&& utility.duplicateAccountList.get(0).Opportunities.get(0).Status__c == 'Needs Rx'
&& utility.hasAttachments(params) == true){
// save attachment.
utility.createAttachmentList(params);
utility.addAttachmentParentId(utility.duplicateAccountList.get(0).Opportunities.get(0).Id);
insert utility.attachmentList;
// set status to 'Attention- Call Center'
Opportunity opp = utility.duplicateAccountList.get(0).Opportunities.get(0);
opp.Status__c = 'Attention- Call Center';
update opp;
//utility.sendEmail(params, utility.duplicateAccountList.get(0), opp);
response = '{"success":true}';
return null;
}else{
//utility.sendEmail(params, utility.duplicateAccountList.get(0));
response = '{"success":true}';
return null;
}
}
utility.createAll(params);
insert utility.patientAccount;
utility.addAttachmentParentId(utility.patientAccount.Id);
//system.debug('attachmentList -> '+ utility.attachmentList);
insert utility.attachmentList;
utility.addOpportunityAccountId(utility.patientAccount.Id);
//system.debug('patientOpportunity -> '+ utility.patientOpportunity);
insert utility.patientOpportunity;
utility.addLineItemOpportunityId(utility.patientOpportunity.Id);
//system.debug('lineItemList -> '+ utility.lineItemList);
insert utility.lineItemList;
//send success email to kelly
Opportunity opp = [SELECT Opportunity_Url__c FROM Opportunity WHERE Id =:utility.patientOpportunity.Id];
Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
mail.setSubject(businessUnit + ' Direct Success Email');
mail.setHtmlBody('<p>'+ businessUnit +' Direct created this opportunity: <a href="'+ opp.Opportunity_Url__c +'">'+ opp.Opportunity_Url__c +'</a></p>');
mail.setToAddresses(new String[]{'pedrick@symplmed.com', 'childs@symplmed.com'});
Messaging.sendEmail(new Messaging.Email[] {mail});
response = '{"success":true}';
}catch(Exception e){
ErrorEmail.sendEmail(e);
system.debug(e);
system.debug(e.getMessage());
system.debug(e.getStackTraceString());
response = '{"success":false, "message":"'+ e.getMessage() +'"}';
Database.rollback(sp);
}
return null;
}
public void validateRequiredFields(Map<String, String> params){
Set<String> requiredParams = new Set<String>{'FirstName',
'LastName',
'PersonBirthdate',
'Phone',
'PersonEmail',
'BillingStreet',
'BillingCity',
'BillingState',
'BillingPostalCode'};
for (String rp :requiredParams){
if (params.get(rp) == '' || params.get(rp) == null){
throw new ApiException(rp +' is required!');
}
}
}
}
Not sure what I am missing but I am going on 2 weeks of trying to figure this out.
Thank You
I wanted to close the loop on this. By adding the stack track to the debug msg I was able to locate an error in the setup that resolved the Apex class issue, The product line item entry in the Utility class was pointing to the wrong pricebook.
Adding the Stack Trace to the debug msg was the trick.
Thank you
Login to SF as the user whose credentials you're using in the PHP application. Open the Developer Console (upper right corner, next to your username), execute the call from PHP. Ideally you'll see a debug log generated with more detailed error message, including the line number & stacktrace.
Alternatively - go to Setup -> Debug Logs and enable tracking of that integration user (this will give you files you can view & download; Developer Console has it's quirks, can be bloody slow but at least it'll parse the log for you so it's easier to read, you can set checkpoints in it...)
Hard to say what might be going wrong, you'll have more luck with stacktrace. My wild guess is that utility.duplicateAccountList is null and then if your code executes null.isEmpty() you'll obviously be slapped with an error ;)
P.S. Have you considered exposing your piece of Apex as a proper 'REST service', not a VF page?