"error": "11 OUT_OF_RANGE: invalid message"

Hi,

I'm a big mountebank API user and as my company is moving towards gRCP I'd thought I'd get ahead of the development and have setup a simple service to learn more about it..

I believe I have configured it correctly but it is failing when I send a message :(

Any advice would be appreciated.

Problem: Request is returning

{
  "error": "11 OUT_OF_RANGE: invalid message"
}

Setup

protocols.json

{
    "grpc": {
        "createCommand": "node /Users/tim/mountebank-grpc/src/index.js"
    }
}

Imposters (loaded successfully via postman)

{
    "protocol": "grpc",
    "port": 5050,
    "loglevel": "debug",
    "recordRequests": true,
    "_note_services": "need the name of the package, service and protofile location for this to load",
    "services": {
        "example.ExampleService": {
            "file": "/Users/tim/mountebank-grpc/src/protos/example.proto"
        }
    },
    "options": {
        "protobufjs": {
            "_note": "any options to protobufjs",
            "includeDirs": ""
        }
    },
    "stubs": [{
        "predicates": [
            {
                "matches": { "path": "UnaryUnary" },
                "caseSensitive": false
            }
        ],
        "responses": [
            {
                "is": {
                    "value": {
                        "_note": "gRPC mock unary call response",
                        "_note_streaming": "this is a unary/unary call, streaming requests need the value to be an array",
                        "id": 100,
                        "data": "mock response"
                    },
                    "metadata": {
                        "_note": "gRPC mock initial/trailing metadata response",
                        "initial": {
                            "metadata-initial-key": "metadata-initial-value"
                        },
                        "trailing": {
                            "metadata-trailing-key": "metadata-trailing-value"
                        }
                    },
                    "error": {
                        "_note": "gRPC mock error",
                        "status": "OUT_OF_RANGE",
                        "message": "invalid message"
                    }
                }
            }
        ]
    }]
}

Request (loaded via bloomRPC to 127.0.0.1:5050)

{
  "id": 10,
  "data": "Hello",
  "common": {
    "operators": {
      "eq": true,
      "ne": true,
      "in": true,
      "and": true,
      "or": true
    }
  }
}

Response:

{
  "error": "11 OUT_OF_RANGE: invalid message"
}

mb.log

{"message":"[mb:2525] Loaded custom protocol grpc","level":"info","timestamp":"2021-07-02T06:50:56.496Z"} {"message":"[mb:2525] mountebank v2.4.0 now taking orders - point your browser to http://localhost:2525/ for help","level":"info","timestamp":"2021-07-02T06:50:56.529Z"} {"message":"[mb:2525] POST /imposters","level":"info","timestamp":"2021-07-02T06:51:02.461Z"} {"message":"[grpc:5050] Open for business...","level":"info","timestamp":"2021-07-02T06:51:02.681Z"} {"message":"[grpc:5050] [2021-07-02T06:51:02.679Z] server started on port '5050'","level":"info","timestamp":"2021-07-02T06:51:02.689Z"}

Clearly I understand little of gRPC so did a bit of reading and a bit of time messing with the impostor code and managed to get it working. :)

The code below works just fine.

Now to figure out how to get injection code to work 👍

{
    "protocol": "grpc",
    "port": 5050,
    "loglevel": "debug",
    "recordRequests": true,
    "_note_services": "need the name of the package, service and protofile location for this to load",
    "services": {
        "example.ExampleService": {
            "file": "/Users/tim/mountebank-grpc/src/protos/example.proto"
        }
    },
    "options": {
        "protobufjs": {
            "_note": "any options to protobufjs",
            "includeDirs": ""
        }
    },
    "stubs": [{
        "predicates": [{
            "contains": {
                "path": "UnaryUnary"
            },
            "caseSensitive": false
        }],
    "responses": [
        {
            "is": {
                "value": {
                    "_note": "gRPC mock unary call response",
                    "_note_streaming": "this is a unary/unary call, streaming requests need the value to be an array",
                    "id": 100,
                    "data": "mock response"
                },
                "metadata": {
                    "_note": "gRPC mock initial/trailing metadata response",
                    "initial": {
                        "metadata-initial-key": "metadata-initial-value"
                    },
                    "trailing": {
                        "metadata-trailing-key": "metadata-trailing-value"
                    }
                }
            }
        }
    ]
    }]
}

cbrz / mountebank-grpc

"error": "11 OUT_OF_RANGE: invalid message" #17