Queueable Apex

 First Batch:

global class BatchCalledThroughQueueable implements Database.Batchable<sObject>, Database.Stateful, Database.AllowsCallouts {

    global Database.QueryLocator start(Database.BatchableContext bc) {

        return Database.getQueryLocator(query);

    }

    global void execute(Database.BatchableContext bc, List<Lead> records){

    }

    global void finish(Database.BatchableContext bc){

    }

}

Second Queueable Class:

public class ExecuteBatchQueueableJob implements Queueable {

    public void execute(QueueableContext context) {

        try{

            BatchCalledThroughQueueable b = new BatchCalledThroughQueueable();

            Database.executeBatch(b, 200);

        }catch(Exception e){

            System.debug('@@@ Error Message : '+e.getMessage());

        }

    }

}

Third Batch:

global class BatchUpdate implements Database.Batchable<sObject>, Database.Stateful, Database.AllowsCallouts {

        global Database.QueryLocator start(Database.BatchableContext bc) {

            Note: Calling Queueable job for calling the next batchfor chaining.

                System.enqueueJob(new ExecuteBatchQueueableJob());

            return Database.getQueryLocator(query);

        }

    global void execute(Database.BatchableContext bc, List<Contact> records){

    }

    global void finish(Database.BatchableContext bc){

    }

}

Instance Refresh and find hardcode instance like : NA65, CA38 in entire org

 

To find hardcode instances like NA65, CA38 in the entire org. 

Need to check below in components and follow reference links :

1. Static Resources

2. Custom Button or Link (Javascript)

3. Email Template 

4. Remote site settings

5. Visualforce pages

6. Custom lables

Reference links:

https://help.salesforce.com/s/articleView?language=en_US&type=1&id=000335670

Lightning Experience Configuration Converter: https://lightning-configuration.salesforce.com/

Pre Instance refresh checklist: https://help.salesforce.com/s/articleView?id=000335655&type=1

https://www.infallibletechie.com/2018/09/things-to-consider-during-salesforce.html

LWC NavigationMixin - Redirect to parent record and LWC Headless action redirection

1. Reference link for LWC Headless action:

https://www.infallibletechie.com/2021/04/using-lwc-for-quick-action-in-salesforce.html

NOTE: This headless action is supported only on the standard record page. - Not worked for community's ref link:  

https://help.salesforce.com/s/articleView?language=en_US&type=5&release=232&id=release-notes.rn_lwc_quick_actions.htm

2. Navigate to LWC or Aura component with RecordId

handleAction(event) {

  var RecId= JSON.stringify(event.detail.row.Id);

    this[NavigationMixin.Navigate]({

        "type": "standard__component",

        "attributes": {

            "componentName": "c__TestForm" //if LWC component : c___test_form

        },

        state: {

            c__recordId: JSON.parse(RecId)

        }

    });

}

(OR)

    renderedCallback() {

        this.sfdcBaseURL = window.location.origin;

    }

 

    handleAction(event) {

var RecId= JSON.stringify(event.detail.row.Id);

       this[NavigationMixin.Navigate]({

                 "type": 'standard__webPage',

                 "attributes": {

                   "url": this.sfdcBaseURL+'/lightning/cmp/c__TestForm?c__recordId='+JSON.parse(RecId)

                 }

             });

    }

3. Sample Redirection to parent record:

XML:

<?xml version="1.0" encoding="UTF-8"?>

<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">

    <apiVersion>52.0</apiVersion>

    <isExposed>true</isExposed>

    <targets>

        <target>lightning__RecordPage</target>

        <target>lightningCommunity__Page</target>

        <target>lightningCommunity__Default</target>

        <target>lightning__RecordAction</target>

    </targets>

    <targetConfigs>

        <targetConfig targets="lightning__RecordAction">

            <actionType>ScreenAction</actionType>

        </targetConfig>

        <targetConfig targets="lightning__RecordPage">

            <objects>

                <object>Contact</object>

            </objects>

        </targetConfig>

        <targetConfig targets="lightningCommunity__Default">

            <property name="recordId" type="String" label="Record ID" 

description="Should be set to {!recordId}" default="{!recordId}"/>

        </targetConfig>

    </targetConfigs>

</LightningComponentBundle>

 Template:

<template>

    <div class="slds-clearfix">

        <div class="slds-float_right">

            <lightning-button label="Return to Roadmap" 

onclick={navigateToViewAccountPage}></lightning-button>

        </div>

    </div>

</template>

JS

  import { LightningElement, api, wire } from 'lwc';

  import { getRecord } from 'lightning/uiRecordApi';

  import { NavigationMixin } from 'lightning/navigation';

  

  const FIELDS = ['Contact.Account.Name',

'Contact.Account.Id']; 

  export default class ReturnToRoadmapLWC extends NavigationMixin (LightningElement){

      @api recordId;  

      connectedCallback(){

        console.log('recordid========='+this.recordId);

      }

      //Wire the output of the out of the box method getRecord to the Contact object

      @wire(getRecord, { recordId: '$recordId', fields: FIELDS })

      Contact;

  

      //Navigate to Account record from Contact

      navigateToViewAccountPage(event) {

        var AccountName = this.Contact.data.fields.Account.value.fields.Name.value;

        var AccountId = this.Contact.data.fields.Account.value.fields.Id.value;            

          console.log('Contact Account name ========='+ AccountName);

          console.log('Contact Account ID ========='+ AccountId);

        this[NavigationMixin.Navigate]({

            type: 'standard__webPage',

            attributes: {

              url: '/'+AccountId

                //url: '/hello/s/testurl/'+AccountId+'/'+AccountName

            }

        });

      }

  }

Date.ValueOf not accepting null

 String str = null;

 Date d = Date.valueOf(str);

I am getting the following error when running the above snippet in Anon Apex.

Line: 2, Column: 1

System.NullPointerException: Argument cannot be null.

Resolution:  Using Ternary Operator we can fix the null check

Date d = String.isBlank(str)  ?  null  : Date.valueOf(str);

Salesforce to Amazon s3 bucket Integration

Pre Requisites:

Bucket name: testbucket1

 

Region: us-east-2

 

Access key ID: XXXXXXXXXXXXXXXXXX

 

Secret access key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

NOTE

1. Aws s3 storage server, storing the data only in the file format (Ex: Upload-Test-3.xml).

2. PUT is used to create the record or update records in s3 bucket

3. Host header is followed by bucket, region, and base URL (Ex:s3.us-east-2.amazonaws.com).

1. Insert the Data into Amazon s3 bucket through XML Payload

public  class AWSS3 {

    public  void uploadToAmazonS3() {   

String xmlStringxmlRes= '<?xml version="1.0" encoding="UTF-8">'+

                                '<my:myField>'+

                                '<my:LANID>12345678910</my:LANID>'+

                                '</my:myField>';

 Blob xmlContentBlob = Blob.valueOf(xmlStringxmlRes);

 String attachmentBody = EncodingUtil.base64Encode(xmlContentBlob);

 String formattedDateString = Datetime.now().formatGMT('EEE, dd MMM yyyy HH:mm:ss z');

 String key = 'XXXXXXXXXXXXXXXXX'; //Access key ID

 String secret = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXX'; //Secret access key

//https://testmay21.s3.us-east-2.amazonaws.com/

 String bucketname = 'testmay21'; //Bucket Name

 String host = 's3.us-east-2.amazonaws.com';

 String method = 'PUT'; //Create a file in Amazon s3 bucket

 String filename = 'Upload-Test-3.xml'; //Give any Name

 String fileType = 'text/xml'; //text/xml

 HttpRequest req = new HttpRequest();

 req.setMethod(method);

 req.setEndpoint('callout:AWS_S3' + '/' + filename); //Named credentials (Refer below 'Screenshot')

 req.setHeader('Host', bucketname + '.' + host);

 req.setHeader('Content-Length', String.valueOf(attachmentBody.length()));

 req.setHeader('Content-Encoding', 'UTF-8');

 req.setHeader('Content-type', fileType);

 req.setHeader('Connection', 'keep-alive');

 req.setHeader('Date', formattedDateString);

 req.setHeader('ACL', 'public-read-write');

 req.setBodyAsBlob(EncodingUtil.base64Decode(attachmentBody));

 Http http = new Http();

 HTTPResponse res = http.send(req);

 System.debug('>>>> The response');

 System.debug(res);

 System.debug('>>>> The body');

 System.debug(res.getBody());

 System.debug('>>>> Status code');

 System.debug(res.getStatusCode());

 System.debug('>>>> Finished method');

    }

}

Screenshot

2. Get data from the amazon s3 bucket.

Endpoint Url : https://s3.us-east-2.amazonaws.com/buckename/Upload-Test-3.xml

Authorization : 

Reference links:

https://developer.salesforce.com/forums/?id=906F0000000BMDFIA4

Salesforce Sample Rest API using Authentication

    

Salesforce Sample Rest API using Authentication:

   HTTPRequest r = new HTTPRequest(); 

    r.setEndpoint('https://test.com');

    Blob headerValue = Blob.valueOf('username' + ':' + 'password');

    String authorizationHeader = 'BASIC ' + EncodingUtil.base64Encode(headerValue);

    r.setHeader('Authorization', authorizationHeader);

    r.setHeader('Content-Type','text/xml;charset=UTF-8'); //application/json

    r.setMethod('GET'); //POST,PUT..

    r.setBody(strSetBody);

    HTTP h = new HTTP(); 

    HTTPResponse resp = h.send(r);

    system.debug('body===>'+resp.getBody());

    system.debug('getStatusCode==>'+resp.getStatusCode());

    system.debug('getStatus'+resp.getStatus());

Convert Encryption key to string (Decode the string)

Convert Encryption key to string or Decode the string or Covert MD5 hash to string :

Blob targetBlob = Blob.valueOf('ad89a9b94b5efd734e0c75a1480c20a4AD64439');

Blob hash = Crypto.generateDigest('MD5', targetBlob);

string hexDigest = EncodingUtil.convertToHex(hash);

system.debug('hexDigest==>'+hexDigest);