AsyncFileApi.java

@RequestMapping("file")
public interface AsyncFileApi {

  @GetMapping("/{id}")
  CompletableFuture<FileMetadata> getFile(@PathVariable String id);

  @GetMapping("/search")
  CompletableFuture<List<FileMetadata>> searchFiles(@RequestParam(name = "name") String name);

  @PostMapping("/save")
  CompletableFuture<String> saveFile(@RequestBody FileMetadata file);

  @PutMapping("/update/{id}")
  CompletableFuture<String> updateFile(@RequestBody FileMetadata file, @PathVariable String id);

  @DeleteMapping("/delete/{id}")
  CompletableFuture<String> updateFile(@PathVariable String id);
}


public static AsyncFileApi getAsyncFileAPI() {
  String URL = "http://localhost:8080"; // This must be passed as an ENV variable
  return AsyncFeign.asyncBuilder()
      .encoder(new JacksonEncoder(apiObjectMapper()))
      .decoder(new JacksonDecoder(apiObjectMapper()))
      .contract(new SpringMvcContract())
      .target(AsyncFileApi.class, URL);
}