Attempt validation for CreateTuples request

Signed-off-by: Jonathan Marcantonio <[email protected]>

Makefile

@@ -43,6 +43,7 @@ api:
  	       --go-http_out=paths=source_relative:./api \
  	       --go-grpc_out=paths=source_relative:./api \
 	       --openapi_out=fq_schema_naming=true,default_response=false:. \
+           --validate_out=paths=source_relative,lang=go:./api \
 	       $(API_PROTO_FILES)
 
 .PHONY: build
@@ -68,22 +69,9 @@ generate:
 # generate all
 all:
 	make api;
-	make validate;
 	make config;
 	make generate;
 
-
-# generate validate proto
-validate:
-	protoc --proto_path=./api \
-	       --proto_path=./third_party \
- 	       --go_out=paths=source_relative:./api \
- 	       --go-http_out=paths=source_relative:./api \
- 	       --go-grpc_out=paths=source_relative:./api \
-	       --openapi_out=fq_schema_naming=true,default_response=false:. \
-           --validate_out=paths=source_relative,lang=go:./api \
-	       $(API_PROTO_FILES)
-
 # run go linter with the repositories lint config
 .PHONY: lint
 lint:

api/relations/v0/common.proto

@@ -18,8 +18,8 @@ option java_package = "org.project_kessel.api.relations.v0";
 // Conventionally, we generally refer to the Resource first, then Subject,
 // following the direction of typical graph traversal (Resource to Subject).
 message Relationship {
-	ObjectReference resource = 1;
-	string relation = 2;
+	ObjectReference resource = 1 [(validate.rules).any.required = true]; 
+	string relation = 2 [(validate.rules).string.min_len = 1];
 	SubjectReference subject = 3;
 }