thinkdb1 commented on issue #127:
URL:
https://github.com/apache/apisix-go-plugin-runner/issues/127#issuecomment-1786557078
我试着修改了几个文件，发现可以修改request body值了，先发你先参考看看
apisix-core-with-plugin/internal/http/request.go中
1.加入
```
func (r *Request) SetBody(b []byte) {
r.body = b
}
```
2.在(r *Request) FetchChanges(id uint32, builder *flatbuffers.Builder)中把
```
if r.path == nil && r.hdr == nil && r.args == nil && r.respHdr == nil {
return false
}
```
改为
```
if r.path == nil && r.hdr == nil && r.args == nil && r.respHdr == nil &&
r.body == nil {
return false
}
```
3.在(r *Request) FetchChanges(id uint32, builder *flatbuffers.Builder)中在
```
if r.path != nil {
path = builder.CreateByteString(r.path)
}
```
后加入
```
if r.body != nil {
body = builder.CreateByteString(r.body)
}
```
4.在(r *Request) FetchChanges(id uint32, builder *flatbuffers.Builder)中把
```
var path flatbuffers.UOffsetT
```
改为
```
var path, body flatbuffers.UOffsetT
```
5.在(r *Request) FetchChanges(id uint32, builder *flatbuffers.Builder)中在
```
if path > 0 {
hrc.RewriteAddPath(builder, path)
}
```
后加入
```
if body > 0 {
hrc.RewriteAddBody(builder, body)
}
```
6.在apisix-core-with-plugin/pkg/http/http.go中的Request interface加入
SetBody([]byte)
7.在go.mod中github.com/api7/ext-plugin-proto改为v0.6.1
在使用时使用r.SetBody([]byte("mytestbody"))并且在apisix的3.6.0版本下使用就可以了，我只是试用成功了，没测试是否还有其他问题
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