Files
obitools4/pkg/obilua/luahttp.go
T
Eric Coissac 10f49fe64b 📝 Clarify RegisterHTTP global registration intent
//
// Registers the http module in Lua state as a global,
// aligning with obicontext and BioSequence conventions.
The change ensures consistent module exposure across Lua environments.
2026-04-13 14:29:16 +02:00

67 lines
1.4 KiB
Go

package obilua
import (
"io"
"net/http"
"strings"
"time"
lua "github.com/yuin/gopher-lua"
)
const httpClientTimeout = 30 * time.Second
var _httpClient = &http.Client{
Timeout: httpClientTimeout,
}
// RegisterHTTP registers the http module in the Lua state as a global,
// consistent with obicontext and BioSequence.
//
// Exposes:
//
// http.post(url, body) → response string (on success)
// http.post(url, body) → nil, err string (on error)
func RegisterHTTP(luaState *lua.LState) {
table := luaState.NewTable()
luaState.SetField(table, "post", luaState.NewFunction(luaHTTPPost))
luaState.SetGlobal("http", table)
}
// luaHTTPPost implements http.post(url, body) for Lua.
//
// Lua signature:
//
// local response = http.post(url, body)
// local response, err = http.post(url, body)
func luaHTTPPost(L *lua.LState) int {
url := L.CheckString(1)
body := L.CheckString(2)
req, err := http.NewRequest(http.MethodPost, url, strings.NewReader(body))
if err != nil {
L.Push(lua.LNil)
L.Push(lua.LString(err.Error()))
return 2
}
req.Header.Set("Content-Type", "application/json")
resp, err := _httpClient.Do(req)
if err != nil {
L.Push(lua.LNil)
L.Push(lua.LString(err.Error()))
return 2
}
defer resp.Body.Close()
respBytes, err := io.ReadAll(resp.Body)
if err != nil {
L.Push(lua.LNil)
L.Push(lua.LString(err.Error()))
return 2
}
L.Push(lua.LString(respBytes))
return 1
}