框架需要 api 版本控制管理能力

[jaronnie]

初始化 v2 版本 api, 先支持 proto

jzero ivm init --version v2
jzero ivm add <service_name>

v2 默认调用 v1 logic

func (l *SayHelloLogic) SayHello(in *hellov2pb.Empty) (*hellov2pb.SayHelloResponse, error) {
    logic := hellologic.NewSayHelloLogic(l.ctx, l.svcCtx)

    marshal, err := proto.Marshal(in)
    if err != nil {
        return nil, err
    }
    var oldIn hellopb.Empty
    err = proto.Unmarshal(marshal, &oldIn)
    if err != nil {
        return nil, err
    }

    hello, err := logic.SayHello(&oldIn)
    if err != nil {
        return nil, err
    }
    marshal, err = proto.Marshal(hello)
    if err != nil {
        return nil, err
    }
    var newResp hellov2pb.SayHelloResponse
    err = proto.Unmarshal(marshal, &newResp)
    if err != nil {
        return nil, err
    }

    return &newResp, nil
}

[jaronnie]

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