API Platform 3 Part 3: Custom Resources

Thanks to part 1 & part 2, we've already built a seriously powerful API, complete with security, custom fields and many more goodies. In this course, we'll take things even further:

• State Providers & "proper" custom fields
• Run custom code on a "state" change (e.g. publishing)
• Custom (non-entity) DTO #[ApiResource] classes
• The new stateOptions shortcut for DTO's
• DTO's & state providers (make:state-provider)
• State processors with DTO's
• Data transformation with symfonycasts/micro-mapper
• IGNORED_ATTRIBUTES, security & other tricks to avoid serialization groups
• Embedded objects (including non-ApiResource objects)
• Pagination for DTO resources

Woh. If you thought you were dangerous before with API Platform, just wait...

• Setup & Ways to Extend API Platform
• State Providers, Processors & a Custom Field
• Decorating the Core State Provider
• Decorating the CollectionProvider
• Simpler State Processor
• Running Code "On Publish"
• Totally Custom Resource
• Custom Resource State Provider
• Using a Custom (Date) Identifier
• Custom Resource Item Provider
• Custom Resource State Processor
• Relating Custom ApiResources
• Embedding Custom DTO's
• Pagination on a Custom Resource
• User Class Dto
• stateOptions + entityClass Magic
• Entities, DTO's & The "Central" Object
• Provider: Transforming Entities to DTOs
• Entity -> DTO Item State Provider
• DTO -> Entity State Processor
• Leveraging the Core Processor
• Controlling Fields without Groups
• Other Conditional Field Strategies
• DTO Validation & Security
• MicroMapper: Central DTO Mapping
• Reusable Entity->Dto Provider & Processor
• Quick! Create a DragonTreasure DTO
• Dtos, Mapping & Max Depth of Relations
• Making DragonTreasureApi Writable
• DTO & Security
• Field Security with Patch
• Triggering a "Publish"
• Writable Relation Fields
• Writing to a Collection Relation
• Writable Collection via the PropertyAccessor
• Simpler Validator for Checking State Change