apache/apisix

bug: grpc-transcode cant transcode empty array list to [] , but it did to {}

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#11,440 创建于 2024年7月26日

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 (13 评论) (0 反应) (1 负责人)Lua (16,597 star) (2,860 fork)batch import
buggood first issue

描述

Current Behavior

when back to front server, grpc transcode plugin cant transcode empty list (array) to [] , but to {} . use grpc example demo : image

when list has content , it did well . image

Expected Behavior

response empty list expect to get [] . not {}

Error Logs

No response

Steps to Reproduce

  1. apisix 3.9 latest
  2. grpc server golang
  3. postman

Environment

  1. apisix 3.9 latest
  2. grpc server golang
  3. postman

贡献者指南

技术栈
go
领域
apibackend
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
blocked
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
gRPCProtobufApache APISIXLua
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
20
研究方向
Investigate the gRPC transcoding plugin in Apache APISIX (likely in the 'plugins/grpc transcode.lua' file). The issue is that when a gRPC response contains an empty repeated field, it is serialized as a JSON object '{}' instead of an empty array '[]'. Check the protobuf to JSON conversion logic, possibly in the encoding of repeated fields, and refer to the gRPC transcoding specification to fix the handling of empty arrays.