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Low fat backends for mobile guys
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Alexandru Simonescu
February 28, 2016
Programming
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100
Low fat backends for mobile guys
Low fat backends for mobile guys:
Develop simple backends in Java in minutes
Alexandru Simonescu
February 28, 2016
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Transcript
Low fat backends For mobile guys
Alexandru Simonescu
[email protected]
@alexsimonescu http://blog.alexsimo.com “Do what you love. Love
what you do.” - Ray Bradbury
do you really need a backend? think twice
mbaas sometimes do the trick
mbaas cons not a golden unicorn _you depend on some
else infrastructure _normally can be cheap, related your needs _no full control, your data is not yours _sometimes hard to scale
and now what?
why not roll your own backend?
we all have a backend dev inside
backend cons or not :-) _custom backend is hard to
develop _can be expensive _i can’t setup infrastructure _i’m just a mobile guy
infrastructure AWS Digital Ocean VPS Dime ~ 5€ month
showtime create required entities, layers and configuration
kickstart 1. set project metadata 2. choose dependencies 3. download
4. import in favorite IDE 5. customize and run https://start.spring.io/
Rest controllers Data access layer Domain entities
hello world controller @Controller @RequestMapping("/status") public class StatusController { @RequestMapping(value
= "/", method = RequestMethod.GET) @ResponseBody public String status() { return "All looks ok from here! :-)"; } }
more complex controller @RestController @RequestMapping(value = "/movie") public class MovieController
{ @Autowired MovieRepository movieRepository; @RequestMapping(value = "/", method = RequestMethod.GET) public List<Movie> all() { return movieRepository.getAll(); } }
persistance entity @Data @Builder @Entity public class Actor { @Id
private Integer id; private String name; }
data access public interface ActorRepository extends JpaRepository<Actor, Integer> { }
rest data access @RepositoryRestResource(collectionResourceRel = "actor", path = "actor") public
interface ActorRepository extends JpaRepository<Actor, Integer> { }
run your backend @SpringBootApplication @Import(SecurityConfiguration.class) public class MoviecloudApplication { public
static void main(String[] args) { SpringApplication.run(MoviecloudApplication.class, args); } }
working project https://github.com/alexsimo/backend-low-fat