What am I missing? Can anyone help me out.
I'm integrating Athena to Salesforce. I'm getting error:

[149]|DEBUG|Response Body<?xml version="1.0" encoding="UTF-8"?>
USER_DEBUG <Response><Errors><Error><Code>AuthFailure</Code><Message>AWS was not able to validate the provided access credentials</Message></Error></Errors><RequestID>********-****-****-****-*************</RequestID></Response>

Here is my code:

public class AWSHelper {
	 private string HTTPRequestMethod ='GET';
    private string canonicalURI = '/' ;	//since we dont have any path
    private string canonicalQueryString= 'Action=DescribeRegions&Version=2015-10-01' ;
    private string canonicalHeaders ;
    private string signedHeaders ;
    private string requestPayload;
    private string access_key ='********************';
    private string secret_key ='****************************************';
    private string service = 'iam';
    private string contentType = 'application/x-www-form-urlencoded; charset=utf-8';
    private string host = 'iam.amazonaws.com';
    private string region = 'us-east-1';
    private string endpoint = 'https://iam.amazonaws.com';
    private string request_parameters = 'Action=DescribeRegions&Version=2015-10-01&AUTHPARAMS' ; 
    // Version Dates for Different Services:-  
    // Athena Version=2017-05-18, EC2 Version=2015-10-01, IAM Version=2012-10-17
    
        	
    private string canonical_request ;
    private string algorithm = 'AWS4-HMAC-SHA256';

    public  string getISO8601DateTime(){
        return System.now().formatGMT('YYYYMMdd\'T\'HHmmss\'Z\'');
        //+ ' !!============!! ------ > '+ System.now().formatGMT('yyyyMMdd\'T\'HHmmss\'Z\''); 
    }
    
    public  string getISO8601Date(){
        return System.now().formatGMT('YYYYMMdd');
        //+ ' !!============!! ------ > '+ System.now().formatGMT('yyyyMMdd\'T\'HHmmss\'Z\''); 
    }
   
    public string payLoad(string payload){
        // in case of GET request we have empty payload
        Blob hash = Crypto.generateDigest('sha256',Blob.valueOf(payload));
        return EncodingUtil.convertToHex(hash);
    }
    
    public Blob sign(Blob key, string message){
        string algorithm='HmacSHA256';
        Blob output=Crypto.generateMac(algorithm, Blob.valueof(message), key);
        return output;
        
    }
    public  void buildCanonicalString()
    {
        Blob key=Blob.valueof('AWS4'+secret_key);
        
        
        // TASK 1
		canonicalHeaders='content-type:' + contentType + '\n' + 'host:' + host + '\n' + 'x-amz-date:' + getISO8601DateTime() +  '\n';
        signedHeaders='content-type;host;x-amz-date';
        
        canonical_request=HTTPRequestMethod + '\n' + canonicalURI + '\n' +
            						canonicalQueryString+ '\n' +canonicalHeaders +'\n' +signedHeaders +'\n' + payload('');
        System.debug('canonical_request-->'+canonical_request);
		
        
        
		//  string hmac='SHA-256';
        Blob targetBlob = Blob.valueOf(canonical_request);
        Blob hash = Crypto.generateDigest('SHA-256', targetBlob);	//using SHA-256
        Blob hash2 = Crypto.generateMac('hmacSHA256', targetBlob, key);		//using hmacSHA256
        String canonical_request_hash = EncodingUtil.convertToHex(hash);
        String canonical_request_hash2 = EncodingUtil.convertToHex(hash2);
        
        System.debug('canonical_request_hash---->'+canonical_request_hash);
		System.debug('canonical_request_hash2---->'+canonical_request_hash2);
        
        // TASK2
        string credential_scope = getISO8601Date() + '/' + 'us-east-1' + '/' + 'ec2' + '/' + 'aws4_request\n';
        string stringToSign=algorithm + '\n' +  getISO8601DateTime() + '\n' +  credential_scope + '\n' + canonical_request_hash2;
        
        System.debug('stringToSign--->'+stringToSign);
        // task 3 Calculate the AWS Signature Version 4
        Blob keySecret = Blob.valueOf('AWS4' + secret_key);
    	Blob keyDate = Crypto.generateMac('hmacSHA256', Blob.valueOf(getISO8601Date()), keySecret);
    	Blob keyRegion = Crypto.generateMac('hmacSHA256', Blob.valueOf(region), keyDate);
    	Blob keyService = Crypto.generateMac('hmacSHA256', Blob.valueOf(service), keyRegion);
    	Blob keySigning = Crypto.generateMac('hmacSHA256', Blob.valueOf('aws4_request'), keyService);
		// string keysigningstring = EncodingUtil.convertToHex(keySigning);
        
        
         Blob blobToSign = Blob.valueOf(stringToSign); // from task 2
        Blob hmac = Crypto.generateMac('hmacSHA256', blobToSign, keySigning);
        String signature = EncodingUtil.convertToHex(hmac);
        
        
        
		/* Blob blobToSign = Blob.valueOf(stringToSign);
    	Blob blobToSignhmac = Crypto.generateMac('hmacSHA256', keySigning, blobToSign);
    	String signature = EncodingUtil.convertToHex(blobToSignhmac);
        */
        
               
		// Task 3 Calculate Signature
		//Blob signing_key =getSignatureKey (secret_key, getISO8601Date(), region, service);
        //Blob signature=sign(signing_key,stringToSign);
		//string finalSignature=EncodingUtil.convertToHex(signature).toLowerCase();
        // Task 4 Add Signining Information to Header
      
        String authorization = 'AWS4-HMAC-SHA256'
        + ' ' + 'Credential=' + access_key + '/' + credential_scope
        + ', ' + 'SignedHeaders=' + signedHeaders
        + ', ' + 'Signature=' + signature
		;
		
    	system.debug('authorization----->'+authorization);
        system.debug('getISO8601Date----->'+getISO8601Date());
		HttpRequest req = new HttpRequest();
        string endpoint= endpoint+'?'+canonicalQueryString  +
            	'&X-Amz-Algorithm=AWS4-HMAC-SHA256&'+
                    '&X-Amz-Credential='+EncodingUtil.urlEncode((access_key + '/' + credential_scope), 'UTF-8')+
                    +'&X-Amz-Date='+getISO8601Date()+
                    '&X-Amz-Expires=60'+
                    '&X-Amz-SignedHeaders='+signedHeaders+
            		'&X-Amz-Signature='+signature+
            		'&AWSAccessKeyId='+access_key;

       	req.setEndpoint(endpoint);	// Use authorization_header or querystring
        req.setMethod(HTTPRequestMethod);
		// req.setHeader('Authorization', authorization);
       	req.setHeader('content-type' , contentType);
        //req.setHeader('host','iam.amazonaws.com');
        //req.setHeader('x-amz-date',getISO8601Date());
        
		// req.setHeader('X-Amz-Credential',access_key+'/'+getISO8601Date()+'/us-east-1/s3/aws4_request');
		// req.setHeader('X-Amz-Date',getISO8601Date());
       	
        //req.setHeader('x-Amz-Host',host);
        
		// req.setHeader('X-Amz-Expires','604678');
		// req.setHeader('X-Amz-SignedHeaders','host');
		// req.setHeader('x-amz-content-sha256', 'UNSIGNED-PAYLOAD');
            
		// req.setHeader('X-Amz-Signature',finalSignature); 
		// Http ht = new Http();
		HttpResponse res = new Http().send(req);
        system.debug('endpoint'+endpoint);
		System.debug('Response Body'+res.getBody());
		//System.debug('Status'+res.getStatus());        
    }
}

Thanks in advance​​​​​​​

Challenge Not yet complete... here's what's wrong: 
The report 'Top Volunteers' is not using the correct filter.

Challenge Not yet complete... here's what's wrong: 
A Volunteer Shift Worker record created for the logged in user is not automatically being assigned the correct status.

Created Approval Process and Called it in Process builder still getting errors

Hi,

This is challenge from Apex Academy: Fundamental Salesforce Coding Techniques by David Liu.
I want one child case but this trigger is creating Child case depending on the keywords like if I enter 2 keywords in Parent description, it will create 2 child cases.

Here is the trigger code

trigger CheckSecretInformation on Case (after insert, before update) {

	String childCaseSubject = 'Warning: Parent case may contain secret info';

	//Step 1: Create a collection containing each of our secret keywords
	Set<String> secretKeywords = new Set<String>();
	secretKeywords.add('Credit Card');
	secretKeywords.add('Social Security');
	secretKeywords.add('SSN');
	secretKeywords.add('Passport');
	secretKeywords.add('Bodyweight');

	//Step 2: Check to see if our case contains any of the secret keywords
	List<Case> casesWithSecretInfo = new List<Case>();
	List<String> SecretKeywordFound = new List<String>();
	for(Case myCase : Trigger.new) {
		if(myCase.Subject != childCaseSubject) {	
			for(String keyword : secretKeywords) {
				if(myCase.Description != null && myCase.Description.containsIgnoreCase(keyword)) {
					casesWithSecretInfo.add(myCase);
					SecretKeywordFound.add(keyword);
					System.debug('Case ' + myCase.Id + ' include secret keyword ' + keyword);
				}
			}
		}	
	}

	// Step 3: If our case contains a secret keyword, create a child case
	List<Case> casesToCreate = new List<Case>();
	
	for(Case caseWithSecretInfo : casesWithSecretInfo) {
		Case childCase        = new Case();
		childCase.subject     = childCaseSubject;
		childCase.ParentId    = caseWithSecretInfo.Id;
		childCase.IsEscalated = true;
		childCase.Priority    = 'High';
		childCase.Description = 'At least one of the following keywords were found ' + SecretKeywordFound;
		casesToCreate.add(childCase);
	
	}
	insert casesToCreate;

}

If I use break; in for loop, It will create one child case but it shows only first keyword not all the keyword that should be displays in one Child case.
 

trigger CheckSecretInformation on Case (after insert, before update) {

	String childCaseSubject = 'Warning: Parent case may contain secret info';

	//Step 1: Create a collection containing each of our secret keywords
	Set<String> secretKeywords = new Set<String>();
	secretKeywords.add('Credit Card');
	secretKeywords.add('Social Security');
	secretKeywords.add('SSN');
	secretKeywords.add('Passport');
	secretKeywords.add('Bodyweight');

	//Step 2: Check to see if our case contains any of the secret keywords
	List<Case> casesWithSecretInfo = new List<Case>();
	List<String> SecretKeywordFound = new List<String>();
	for(Case myCase : Trigger.new) {
		if(myCase.Subject != childCaseSubject) {	
			for(String keyword : secretKeywords) {
				if(myCase.Description != null && myCase.Description.containsIgnoreCase(keyword)) {
					casesWithSecretInfo.add(myCase);
					SecretKeywordFound.add(keyword);
					System.debug('Case ' + myCase.Id + ' include secret keyword ' + keyword);
					break;
				}
			}
		}	
	}

	// Step 3: If our case contains a secret keyword, create a child case
	List<Case> casesToCreate = new List<Case>();
	
	for(Case caseWithSecretInfo : casesWithSecretInfo) {
		Case childCase        = new Case();
		childCase.subject     = childCaseSubject;
		childCase.ParentId    = caseWithSecretInfo.Id;
		childCase.IsEscalated = true;
		childCase.Priority    = 'High';
		childCase.Description = 'At least one of the following keywords were found ' + SecretKeywordFound;
		casesToCreate.add(childCase);
	
	}
	insert casesToCreate;

}

Note: Please Don't use Map collection or SOQL. If there is a possibility that anyone can achieve this without MAP! 

Thanks

Hi,

I have created one org. Now I want external user and internal user can have access to some of their record. It can be possible that total of users will be more than 10,000 but I don't have a big company to buy so many user licenses. Is there any other way?

Thanks

I think I tried every developer community post regarding my query still didn't find any solution, thats why posting new question. Hoping that I will get any solution.
So query is:

What I want is to add background image inside that pageblocksection.
and here is the code:

VF Page:

<div class="main-right" style="width:98%;">
        <apex:pageBlock >
            <apex:pageBlockSection collapsible="false" columns="5" >
                 <div class="bg-image"></div>
            </apex:pageBlockSection>
        </apex:pageBlock>
</div>

Internal CSS:
 

.bg-image {
    margin : 0px;
    background-image: url(https://i.imgur.com/40jNzOy.png);
    background-position : center 0;
    background-size : auto auto;
    background-attachment : scroll;
    background-repeat : no-repeat;
    overflow :hidden; 
}

Thanks in advance.

I created one Close Task checkbox in Account. Whenever I checked on Close Task in Account, all task should be closed.
I'm learning how to write triggers. I wrote a trigger but it's not working. Please look at it and help.
 

trigger CloseTaskInAccount on Account (before update) {
    List<Account> acc = [Select Id From Account];
    for(Account acc : Trigger.new) {
        Task t = new Task();
        if(acc.Close_Task__c == True) {
            t.Status = 'Completed';
            t.WhatId = acc.Id;
            update t;
        }
    }
}

Challenge Not yet complete... here's what's wrong: 
A Volunteer Shift Worker record created for the logged in user is not automatically being assigned the correct status.

Created Approval Process and Called it in Process builder still getting errors

What am I missing? Can anyone help me out.
I'm integrating Athena to Salesforce. I'm getting error:

[149]|DEBUG|Response Body<?xml version="1.0" encoding="UTF-8"?>
USER_DEBUG <Response><Errors><Error><Code>AuthFailure</Code><Message>AWS was not able to validate the provided access credentials</Message></Error></Errors><RequestID>********-****-****-****-*************</RequestID></Response>

Here is my code:

public class AWSHelper {
	 private string HTTPRequestMethod ='GET';
    private string canonicalURI = '/' ;	//since we dont have any path
    private string canonicalQueryString= 'Action=DescribeRegions&Version=2015-10-01' ;
    private string canonicalHeaders ;
    private string signedHeaders ;
    private string requestPayload;
    private string access_key ='********************';
    private string secret_key ='****************************************';
    private string service = 'iam';
    private string contentType = 'application/x-www-form-urlencoded; charset=utf-8';
    private string host = 'iam.amazonaws.com';
    private string region = 'us-east-1';
    private string endpoint = 'https://iam.amazonaws.com';
    private string request_parameters = 'Action=DescribeRegions&Version=2015-10-01&AUTHPARAMS' ; 
    // Version Dates for Different Services:-  
    // Athena Version=2017-05-18, EC2 Version=2015-10-01, IAM Version=2012-10-17
    
        	
    private string canonical_request ;
    private string algorithm = 'AWS4-HMAC-SHA256';

    public  string getISO8601DateTime(){
        return System.now().formatGMT('YYYYMMdd\'T\'HHmmss\'Z\'');
        //+ ' !!============!! ------ > '+ System.now().formatGMT('yyyyMMdd\'T\'HHmmss\'Z\''); 
    }
    
    public  string getISO8601Date(){
        return System.now().formatGMT('YYYYMMdd');
        //+ ' !!============!! ------ > '+ System.now().formatGMT('yyyyMMdd\'T\'HHmmss\'Z\''); 
    }
   
    public string payLoad(string payload){
        // in case of GET request we have empty payload
        Blob hash = Crypto.generateDigest('sha256',Blob.valueOf(payload));
        return EncodingUtil.convertToHex(hash);
    }
    
    public Blob sign(Blob key, string message){
        string algorithm='HmacSHA256';
        Blob output=Crypto.generateMac(algorithm, Blob.valueof(message), key);
        return output;
        
    }
    public  void buildCanonicalString()
    {
        Blob key=Blob.valueof('AWS4'+secret_key);
        
        
        // TASK 1
		canonicalHeaders='content-type:' + contentType + '\n' + 'host:' + host + '\n' + 'x-amz-date:' + getISO8601DateTime() +  '\n';
        signedHeaders='content-type;host;x-amz-date';
        
        canonical_request=HTTPRequestMethod + '\n' + canonicalURI + '\n' +
            						canonicalQueryString+ '\n' +canonicalHeaders +'\n' +signedHeaders +'\n' + payload('');
        System.debug('canonical_request-->'+canonical_request);
		
        
        
		//  string hmac='SHA-256';
        Blob targetBlob = Blob.valueOf(canonical_request);
        Blob hash = Crypto.generateDigest('SHA-256', targetBlob);	//using SHA-256
        Blob hash2 = Crypto.generateMac('hmacSHA256', targetBlob, key);		//using hmacSHA256
        String canonical_request_hash = EncodingUtil.convertToHex(hash);
        String canonical_request_hash2 = EncodingUtil.convertToHex(hash2);
        
        System.debug('canonical_request_hash---->'+canonical_request_hash);
		System.debug('canonical_request_hash2---->'+canonical_request_hash2);
        
        // TASK2
        string credential_scope = getISO8601Date() + '/' + 'us-east-1' + '/' + 'ec2' + '/' + 'aws4_request\n';
        string stringToSign=algorithm + '\n' +  getISO8601DateTime() + '\n' +  credential_scope + '\n' + canonical_request_hash2;
        
        System.debug('stringToSign--->'+stringToSign);
        // task 3 Calculate the AWS Signature Version 4
        Blob keySecret = Blob.valueOf('AWS4' + secret_key);
    	Blob keyDate = Crypto.generateMac('hmacSHA256', Blob.valueOf(getISO8601Date()), keySecret);
    	Blob keyRegion = Crypto.generateMac('hmacSHA256', Blob.valueOf(region), keyDate);
    	Blob keyService = Crypto.generateMac('hmacSHA256', Blob.valueOf(service), keyRegion);
    	Blob keySigning = Crypto.generateMac('hmacSHA256', Blob.valueOf('aws4_request'), keyService);
		// string keysigningstring = EncodingUtil.convertToHex(keySigning);
        
        
         Blob blobToSign = Blob.valueOf(stringToSign); // from task 2
        Blob hmac = Crypto.generateMac('hmacSHA256', blobToSign, keySigning);
        String signature = EncodingUtil.convertToHex(hmac);
        
        
        
		/* Blob blobToSign = Blob.valueOf(stringToSign);
    	Blob blobToSignhmac = Crypto.generateMac('hmacSHA256', keySigning, blobToSign);
    	String signature = EncodingUtil.convertToHex(blobToSignhmac);
        */
        
               
		// Task 3 Calculate Signature
		//Blob signing_key =getSignatureKey (secret_key, getISO8601Date(), region, service);
        //Blob signature=sign(signing_key,stringToSign);
		//string finalSignature=EncodingUtil.convertToHex(signature).toLowerCase();
        // Task 4 Add Signining Information to Header
      
        String authorization = 'AWS4-HMAC-SHA256'
        + ' ' + 'Credential=' + access_key + '/' + credential_scope
        + ', ' + 'SignedHeaders=' + signedHeaders
        + ', ' + 'Signature=' + signature
		;
		
    	system.debug('authorization----->'+authorization);
        system.debug('getISO8601Date----->'+getISO8601Date());
		HttpRequest req = new HttpRequest();
        string endpoint= endpoint+'?'+canonicalQueryString  +
            	'&X-Amz-Algorithm=AWS4-HMAC-SHA256&'+
                    '&X-Amz-Credential='+EncodingUtil.urlEncode((access_key + '/' + credential_scope), 'UTF-8')+
                    +'&X-Amz-Date='+getISO8601Date()+
                    '&X-Amz-Expires=60'+
                    '&X-Amz-SignedHeaders='+signedHeaders+
            		'&X-Amz-Signature='+signature+
            		'&AWSAccessKeyId='+access_key;

       	req.setEndpoint(endpoint);	// Use authorization_header or querystring
        req.setMethod(HTTPRequestMethod);
		// req.setHeader('Authorization', authorization);
       	req.setHeader('content-type' , contentType);
        //req.setHeader('host','iam.amazonaws.com');
        //req.setHeader('x-amz-date',getISO8601Date());
        
		// req.setHeader('X-Amz-Credential',access_key+'/'+getISO8601Date()+'/us-east-1/s3/aws4_request');
		// req.setHeader('X-Amz-Date',getISO8601Date());
       	
        //req.setHeader('x-Amz-Host',host);
        
		// req.setHeader('X-Amz-Expires','604678');
		// req.setHeader('X-Amz-SignedHeaders','host');
		// req.setHeader('x-amz-content-sha256', 'UNSIGNED-PAYLOAD');
            
		// req.setHeader('X-Amz-Signature',finalSignature); 
		// Http ht = new Http();
		HttpResponse res = new Http().send(req);
        system.debug('endpoint'+endpoint);
		System.debug('Response Body'+res.getBody());
		//System.debug('Status'+res.getStatus());        
    }
}

Thanks in advance​​​​​​​

Challenge Not yet complete... here's what's wrong: 
The report 'Top Volunteers' is not using the correct filter.

Challenge Not yet complete... here's what's wrong: 
A Volunteer Shift Worker record created for the logged in user is not automatically being assigned the correct status.

Created Approval Process and Called it in Process builder still getting errors

Does salesforce community builder have inbuilt payment option

Hi,

I have created one org. Now I want external user and internal user can have access to some of their record. It can be possible that total of users will be more than 10,000 but I don't have a big company to buy so many user licenses. Is there any other way?

Thanks

I think I tried every developer community post regarding my query still didn't find any solution, thats why posting new question. Hoping that I will get any solution.
So query is:

What I want is to add background image inside that pageblocksection.
and here is the code:

VF Page:

<div class="main-right" style="width:98%;">
        <apex:pageBlock >
            <apex:pageBlockSection collapsible="false" columns="5" >
                 <div class="bg-image"></div>
            </apex:pageBlockSection>
        </apex:pageBlock>
</div>

Internal CSS:
 

.bg-image {
    margin : 0px;
    background-image: url(https://i.imgur.com/40jNzOy.png);
    background-position : center 0;
    background-size : auto auto;
    background-attachment : scroll;
    background-repeat : no-repeat;
    overflow :hidden; 
}

Thanks in advance.

I created one Close Task checkbox in Account. Whenever I checked on Close Task in Account, all task should be closed.
I'm learning how to write triggers. I wrote a trigger but it's not working. Please look at it and help.
 

trigger CloseTaskInAccount on Account (before update) {
    List<Account> acc = [Select Id From Account];
    for(Account acc : Trigger.new) {
        Task t = new Task();
        if(acc.Close_Task__c == True) {
            t.Status = 'Completed';
            t.WhatId = acc.Id;
            update t;
        }
    }
}