Refactored file upload: generalized HttpGatewayAcceptor file-download

Author: artem-v

services/src/main/java/io/scalecube/services/files/FileServiceImpl.java

@@ -96,17 +96,17 @@ public Flux<ServiceMessage> streamFile() {
         .flatMapMany(
             context -> {
               final var headers = context.headers();
-              final var name = context.pathVar("name");
-              final var path = baseDir.resolve(name);
+              final var filename = context.pathVar("filename");
+              final var path = baseDir.resolve(filename);
 
               if (!isPathValid(path)) {
-                return Flux.error(new FileNotFoundException("File not found: " + name));
+                return Flux.error(new FileNotFoundException("File not found: " + filename));
               }
 
               final var message =
                   ServiceMessage.from(headers)
                       .header("Content-Type", "application/octet-stream")
-                      .header("Content-Disposition", "attachment; filename=" + name)
+                      .header("Content-Disposition", "attachment; filename=" + filename)
                       .build();
 
               return Flux.just(message)

services/src/main/java/io/scalecube/services/files/FileStreamer.java

@@ -21,6 +21,6 @@ public interface FileStreamer {
   @Tag(key = "Content-Type", value = "application/file")
   @RestMethod("GET")
   @ResponseType(byte[].class)
-  @ServiceMethod("${microservices:id}/files/:name")
+  @ServiceMethod("${microservices:id}/files/:filename")
   Flux<ServiceMessage> streamFile();
 }