syntax = "proto3";

package esin.io.weixin;

option go_package = "git.esin.io/weixin/protobuf/credential;credential";

import "google/api/annotations.proto";
import "google/protobuf/timestamp.proto";
import "google/protobuf/empty.proto";

service CredentialService {
    rpc GetCredential(google.protobuf.Empty) returns (GetCredentialResponse) {
        option (google.api.http) = {
            get: "/token"
        };
    }

    rpc RenewCredential(google.protobuf.Empty) returns (RenewCredentialResponse) {
        option (google.api.http) = {
            post: "/token"
            body: "*"
        };
    }
}

message Credential {
    string access_token = 1;
    int32 expires_in = 2;
}

message GetCredentialResponse {
    Credential credential = 1;
    google.protobuf.Timestamp timestamp = 2;
}

message RenewCredentialResponse {
    Credential credential = 1;
    google.protobuf.Timestamp timestamp = 2;
}