This document provides best practices for using Apex in 2022. It discusses security practices like enforcing CRUD/FLS permissions and encrypting data. It also covers performance techniques like using Platform Cache to store reusable data. Designing for scale is addressed, including bulkifying code and using Queueables for large data volumes. The document also discusses making code reusable with trigger frameworks, and maintainable through coding standards, error logging, and writing tests.

1. Best Practices with
Apex in 2022

2. LOGO
Lead Developer Advocate
@msrivastav13
Mohith Shrivastava

3. LOGO
Lead Developer Advocate
@codefriar
Kevin Poorman

5. Automates complex business processes
Multi-tenant aware, easy to test, versioned
Apex lets us extends platform capabilities
Most sought out skill if you are looking to be a
Salesforce Developer
What’s special about Apex?
100s
of
billions
Yearly
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6. We have divided best practices of Apex
into following categories
❏ Security
❏ Performance
❏ Designing For Scale
❏ Reusability
❏ Maintainability
Building Enterprise Apps with Apex

7. https://sfdc.co/apex-recipes
Apex Recipes
Scan the above QR Code to
navigate to apex-recipes git repo

8. Security

9. Improve App Security by Enforcing
CRUD/FLS
// check for create permission (CRUD Example)
CanTheUser.create(new Account());
CanTheUser.read(listcontacts);
// check for FLS permission
CanTheUser.flsAccessible(‘Opportunity’, ‘Amount’);
CanTheUser.flsUpdatable(‘Opportunity’, ‘Amount’);
// check for FLS permission when querying
new Safely.doQuery(query string);
Scan the above QR Code to
navigate to Security Recipes

10. Strengthen your Data Security
Comply with privacy policies and regulatory
requirements
● encrypting data at rest - Use Shield Platform
encryption
● encrypt data transmitted over network - Encryption
recipes
// An Example from Encryption Recipes
String toHash = ‘Test Data’;
Blob dataToHash = Blob.valueof(toHash);
Blob hash = EncryptionRecipes.generateSHA512HashRecipe(dataToHash);
EncryptionRecipes.checkSHA512HashRecipe(hash, dataToHash);
Scan the above QR Code to
navigate to Encryption
Recipes

11. Integration Best Practices in Apex
● Use Named Credential
○ Avoid storing username and passwords or API
keys if possible
● Understand limits of Apex
○ Apex might not be ideal for every type of
integration
Scan the above QR Code to
navigate to Integration
Apex Recipes

12. Performance

13. Improve speed using Platform Cache
Platform cache provides memory layer to store
session and org data for later reuse.
Some use case for platform cache below
● static data
● reused throughout the session/user requests
● expensive to compute or retrieve
// An Example from Platform cache recipe
// Store in org cache
PlatformCacheRecipes.storeValueInOrgCache(‘Account’, ‘Test Account
static data’);
// Store from org cache
PlatformCacheRecipes.getDefaultPartition(PlatformCacheRecipes.PartitionT
ype.ORG).get(‘Account’);
Scan the above QR Code
to navigate to Platform
Cache Recipes

14. Design for Scale

15. Code Bulkification & Optimization
● No DML or SOQL inside FOR loops
● Understand Apex governor limits
● Write optimized queries
● Design Code modules that can process collections
of records in a single transaction
Scan the above QR Code
to navigate to Collection
Recipes

16. Solve for Large Data Volumes(LDV)
Process large chunks of data using Queueables.
● You can find an example of how to process large
dataset in serial using queueables in apex recipes
● Design your queuables to be fail proof using
Transaction Finalizers
Honorable mention to functions. Functions are
great way to handle LDV use cases
Scan the above QR Code
to navigate to LDV
Recipes

17. Reusability

18. Reusability
● Adopt a trigger framework when writing triggers
with one trigger per object
● Apex-Recipes provides an opinionated
framework
■ Uses CMDT to control the order of execution
■ A bypass flag to switch off the trigger when
needed
Scan the above QR Code
to navigate to Trigger
Recipes

19. Maintainability

20. Coding Conventions and Standards
● Define and follow a uniform naming conventions
● Avoid hardcoding IDs
● Error Logging Frameworks
○ Fire platform events upon errors
● Use PMD to Scan your apex
● Implement CI & CD for the project to discover
breaking changes
Scan the above QR Code to
navigate to Success Cloud Coding
Conventions Trailhead Module

21. Write meaningful tests
● Use test data factories to create and manage
reusable data for testing needs
● Use Mocks for testing API callouts
● Use Stub provider to build mocking frameworks
for unit testing
● Write meaningful negative tests
Scan the above QR Code
to navigate to Testing
Recipes

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23. Thank You