Building a non-blocking REST API in less than 30 minutes
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This document discusses building a non-blocking REST API in Play Framework and Scala in less than 30 minutes. It will cover creating a simple REST API for managing work hours using ScalikeJDBC for asynchronous database access. The API will include models for Employee, Project, and TimeEntry connected to a relational database, allowing CRUD operations on time entries. It also discusses best practices for REST APIs like adhering to Fielding constraints and using JSON for request/response bodies.
![Thomas Meijers - @ItsMeijers
Thank you
Questions?
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val yourName: Future[AwesomeJob] = withSQL{ select.job.from(Lunatech) }](https://image.slidesharecdn.com/buildingnonblockingrest-151025131258-lva1-app6892/85/Building-a-non-blocking-REST-API-in-less-than-30-minutes-36-320.jpg)
Building a non-blocking REST API in less than 30 minutes
- 1. Building a non-blocking REST API in less than 30 minutes Thomas Meijers - @ItsMeijers
- 2. About me Thomas Meijers @ItsMeijers Lunatech Student Play Framework Amsterdam @ItsMeijers
- 3. Experience with Play? Play Framework Amsterdam @ItsMeijers
- 4. Experience with Scala? Play Framework Amsterdam @ItsMeijers
- 5. Content What are we building? REST Refresh Persistence Building the API ScalikeJDBC in Action Fielding constraints Recommendation Play Framework Amsterdam @ItsMeijers
- 6. What are we building? Simple non-blocking REST API for managing work hours Consists of 3 models connected to a relational database (CRUD) Employee Project TimeEntry Play Framework Amsterdam @ItsMeijers
- 7. What are we building? Play Framework Amsterdam @ItsMeijers
- 8. REST & The Fielding Constraints 0. Client Server 1. Statelessness 2. Cacheable 3. Layered system 4. Uniform interface 5. Code on demand (optional) Play Framework Amsterdam @ItsMeijers
- 9. Persistence Relational Databases Slick (Non-blocking) Anorm ScalikeJDBC ScalikeJDBC-Async (Non-blocking) Play Framework Amsterdam @ItsMeijers
- 10. ScalikeJDBC-Async Tidy SQL-based DB access library for Scala Cool QueryDSL (EDSL) Play Framework support! Non-blocking * Experimental (although production ready) Play Framework Amsterdam @ItsMeijers
- 11. Why Non-Blocking? Play Framework Amsterdam @ItsMeijers
- 12. Building the API Play Framework Amsterdam @ItsMeijers What do we want? When do we want it? Code ! Now !
- 13. Dependencies in build.sbt Play Framework Amsterdam @ItsMeijers
- 14. Configuration Play Framework Amsterdam @ItsMeijers Application.conf play.plugins
- 15. Creating the URIs Play Framework Amsterdam @ItsMeijers
- 16. ScalikeJDBC-Async Play Framework Amsterdam @ItsMeijers
- 17. ScalikeJDBC-Async Mapping Play Framework Amsterdam @ItsMeijers
- 18. ScalikeJDBC-Async Mapping Play Framework Amsterdam @ItsMeijers
- 19. Find a TimeEntry Play Framework Amsterdam @ItsMeijers
- 20. Find a TimeEntry by Employee Play Framework Amsterdam @ItsMeijers
- 21. Creating a TimeEntry Play Framework Amsterdam @ItsMeijers
- 22. Deleting a TimeEntry Play Framework Amsterdam @ItsMeijers
- 23. Representation Class Play Framework Amsterdam @ItsMeijers Send and retrieve from the client Send and retrieve from DB
- 24. JSON Parsing Play Framework Amsterdam @ItsMeijers
- 25. JSON helper functions Play Framework Amsterdam @ItsMeijers
- 26. API Index - GET /api Play Framework Amsterdam @ItsMeijers
- 27. GET /api/time-entries Play Framework Amsterdam @ItsMeijers
- 28. GET /api/time-entries/:id Play Framework Amsterdam @ItsMeijers
- 29. POST /api/time-entries Play Framework Amsterdam @ItsMeijers
- 30. PUT /api/time-entries/:id Play Framework Amsterdam @ItsMeijers
- 31. DELETE /api/time-entries/:id Play Framework Amsterdam @ItsMeijers
- 32. ScalikeJDBC-Async In Action Play Framework Amsterdam @ItsMeijers
- 33. Fielding Constraints 0. Client Server 1. Statelessness 2. Cacheable 3. Layered system 4. Uniform interface 5. Code on demand (optional) Play Framework Amsterdam @ItsMeijers
- 34. github.com/ThomasMeijers/NonBlocking Complete API Play Framework Amsterdam @ItsMeijers
- 35. Use a hypermedia format HAL - github.com/restfulscala/HALselhof Siren - github.com/yetu/siren-scala Documentation: Swagger.io Slick Monad Transformers Recommendations Play Framework Amsterdam @ItsMeijers
- 36. Thomas Meijers - @ItsMeijers Thank you Questions? Lunatech is hiring! val yourName: Future[AwesomeJob] = withSQL{ select.job.from(Lunatech) }