zxyao145 opened a new issue, #9887:
URL: https://github.com/apache/apisix/issues/9887
### Description
I am writing a wasm plugin with go, and we need to dynamically obtain
relevant configuration information through HTTP requests in the plugin.
However, I encountered the following error while using
proxywasm.DispatchHttpCall:
```
Error: error status returned by host: bad argument
```
My source code is as follows:
```go
func TestDispatchHttpCall() (string, error) {
proxywasm.LogWarnf("TestDispatchHttpCall!")
defer func() {
if err := recover(); err != nil {
proxywasm.LogErrorf("TestDispatchHttpCall panic! %+v",
err)
}
}()
urlStr := "http://xxxx.com/api/healthz";
uri, err := url.Parse(urlStr)
if err != nil {
proxywasm.LogErrorf("TestDispatchHttpCall url.Parse Error:
%+v", err)
return "", err
}
hs := [][2]string{}
hs = append(hs, [2]string{":scheme", uri.Scheme})
hs = append(hs, [2]string{"host", uri.Host})
hs = append(hs, [2]string{":path", uri.Path})
hs = append(hs, [2]string{":method", "GET"})
var bodyCh = make(chan []byte)
proxywasm.LogWarnf("TestDispatchHttpCall info: %s, %+v", uri.Host, hs)
_, err = proxywasm.DispatchHttpCall(uri.Host, hs, nil, nil, 5000,
func(numHeaders, bodySize, numTrailers int) {
proxywasm.LogWarn("TestDispatchHttpCall callback!")
bodyBytes, err := proxywasm.GetHttpCallResponseBody(0, bodySize)
if err != nil {
proxywasm.LogErrorf("TestDispatchHttpCall callback
Error: %+v", err)
return
}
bodyCh <- bodyBytes
close(bodyCh)
})
if err != nil {
// here will got the error
+ proxywasm.LogErrorf("TestDispatchHttpCall Error: %+v", err)
return "", err
}
select {
case body := <-bodyCh:
proxywasm.LogWarnf("TestDispatchHttpCall receive body! %s", "")
var rspJson map[string]string
err = json.Unmarshal(body, &rspJson)
if err != nil {
proxywasm.LogErrorf("Error: %+v", err)
return "", err
}
proxywasm.LogWarnf("TestDispatchHttpCall receive rspJson %s",
rspJson)
return "", nil
case <-time.After(time.Second * 2):
return "", fmt.Errorf("call kc error")
}
}
```
I have looked at the code for
[forward-auth](https://github.com/apache/apisix/blob/master/t/wasm/forward-auth.go)
and the logic should be the same for both.
Hope to receive your help, thank a lot!
### Environment
- APISIX version (run `apisix version`): 3.2.0
- Operating system (run `uname -a`): debian:bullseye-slim
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`): nginx
version: openresty/1.21.4.1
- etcd version, if relevant (run `curl
http://127.0.0.1:9090/v1/server_info`): 3.4.18
- APISIX Dashboard version, if relevant:
- Plugin runner version, for issues related to plugin runners:
- LuaRocks version, for installation issues (run `luarocks --version`):
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