Hello, this is memo about curl / Twirp

Environments

• go version go1.12.8 darwin/amd64
• github.com/twitchtv/twirp v5.9.0+incompatible

Case 1: argument is empty

syntax = "proto3";
package api;

import "google/protobuf/empty.proto";

service MyService {
    rpc GetData(google.protobuf.Empty) returns (google.protobuf.Empty);
}

We should send {}

curl -X POST \
     -H "Content-Type:application/json" \
     -d "{}" \
     http://localhost:8888/twirp/api.MyService/GetData | jq

Case 1: argument contains environment value

syntax = "proto3";
package api;

import "google/protobuf/empty.proto";

service MyService {
    rpc GetData(google.protobuf.Empty) returns (google.protobuf.Empty);
    rpc AddData(Val) returns (google.protobuf.Empty);
}

message Val {
    string value = 1;
}

export VALUE="Hello"
curl -X POST \
     -H "Content-Type:application/json" \
     -d "{\"value\": ${VALUE}}" \
     http://localhost:8888/twirp/api.MyService/AddData | jq