fix(rest): filter/v2/subscriptions response (#2529)

tests/wakunode_rest/test_rest_filter.nim

@@ -246,7 +246,7 @@ suite "Waku v2 Rest API - Filter V2":
       pingResponse.status == 200
       $pingResponse.contentType == $MIMETYPE_JSON
       pingResponse.data.requestId == "9999"
-      pingResponse.data.statusDesc.len() == 0
+      pingResponse.data.statusDesc == "OK"
 
     # When - error case
     let requestBodyUnsubAll = FilterUnsubscribeAllRequest(requestId: "9988")
@@ -288,7 +288,7 @@ suite "Waku v2 Rest API - Filter V2":
       pingResponse.status == 200
       $pingResponse.contentType == $MIMETYPE_JSON
       pingResponse.data.requestId == "9999"
-      pingResponse.data.statusDesc.len() == 0
+      pingResponse.data.statusDesc == "OK"
 
     # When - message push
     let testMessage = WakuMessage(

waku/waku_api/rest/filter/handlers.nim

@@ -63,9 +63,12 @@ func decodeRequestBody[T](
 
   return ok(requestResult.get())
 
-proc getErrorCause(err: filter_protocol_type.FilterSubscribeError): string =
+proc getStatusDesc(protocolClientRes: filter_protocol_type.FilterSubscribeResult): string =
   ## Retrieve proper error cause of FilterSubscribeError - due stringify make some parts of text double
+  if protocolClientRes.isOk:
+    return "OK"
 
+  let err = protocolClientRes.error
   case err.kind
   of FilterSubscribeErrorKind.PEER_DIAL_FAILURE:
     err.address
@@ -81,16 +84,10 @@ proc convertResponse(
     protocolClientRes: filter_protocol_type.FilterSubscribeResult,
 ): T =
   ## Properly convert filter protocol's response to rest response
-
-  if protocolClientRes.isErr():
-    return FilterSubscriptionResponse(
-      requestId: requestId,
-      statusCode: uint32(protocolClientRes.error().kind),
-      statusDesc: getErrorCause(protocolClientRes.error()),
-    )
-  else:
-    return
-      FilterSubscriptionResponse(requestId: requestId, statusCode: 0, statusDesc: "")
+  return FilterSubscriptionResponse(
+    requestId: requestId,
+    statusDesc: getStatusDesc(protocolClientRes),
+  )
 
 proc convertResponse(
     T: type FilterSubscriptionResponse,
@@ -98,10 +95,8 @@ proc convertResponse(
     protocolClientRes: filter_protocol_type.FilterSubscribeError,
 ): T =
   ## Properly convert filter protocol's response to rest response in case of error
-
   return FilterSubscriptionResponse(
     requestId: requestId,
-    statusCode: uint32(protocolClientRes.kind),
     statusDesc: $protocolClientRes,
   )
 

waku/waku_api/rest/filter/types.nim

@@ -47,7 +47,6 @@ type FilterUnsubscribeAllRequest* = object
 
 type FilterSubscriptionResponse* = object
   requestId*: string
-  statusCode*: uint32
   statusDesc*: string
 
 #### Type conversion
@@ -119,7 +118,6 @@ proc writeValue*(
 ) {.raises: [IOError].} =
   writer.beginRecord()
   writer.writeField("requestId", value.requestId)
-  writer.writeField("statusCode", value.statusCode)
   writer.writeField("statusDesc", value.statusDesc)
   writer.endRecord()
 
@@ -406,7 +404,6 @@ proc readValue*(
 ) {.raises: [SerializationError, IOError].} =
   var
     requestId = none(string)
-    statusCode = none(uint32)
     statusDesc = none(string)
 
   var keys = initHashSet[string]()
@@ -423,8 +420,6 @@ proc readValue*(
     case fieldName
     of "requestId":
       requestId = some(reader.readValue(string))
-    of "statusCode":
-      statusCode = some(reader.readValue(uint32))
     of "statusDesc":
       statusDesc = some(reader.readValue(string))
     else:
@@ -435,6 +430,5 @@ proc readValue*(
 
   value = FilterSubscriptionResponse(
     requestId: requestId.get(),
-    statusCode: statusCode.get(),
     statusDesc: statusDesc.get(""),
   )