官方文档
https://learning.postman.com/docs/sending-requests/grpc/using-service-definition/
新建Grpc请求
将probo文件上传postman
biz/controller/purchase_order_controller.go:375
https://learning.postman.com/docs/sending-requests/grpc/using-service-definition/
将probo文件上传postman
biz/controller/purchase_order_controller.go:375