76 lines
1.5 KiB
Go
76 lines
1.5 KiB
Go
package main
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import (
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"fmt"
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"log"
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"net/http"
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"os"
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"strconv"
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)
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const (
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AppTitle = `llamacpphtmld`
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AppVersion = `0.0.0-dev` // should be overridden by go build argument
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)
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type Config struct {
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NetBind string
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ModelPath string
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SimultaneousRequests int
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}
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func NewConfigFromEnv() (Config, error) {
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ret := Config{
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NetBind: os.Getenv(`LCH_NET_BIND`),
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ModelPath: os.Getenv(`LCH_MODEL_PATH`),
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}
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SimultaneousRequests, err := strconv.Atoi(os.Getenv(`LCH_SIMULTANEOUS_REQUESTS`))
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if err != nil {
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return Config{}, fmt.Errorf("LCH_SIMULTANEOUS_REQUESTS: %w", err)
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}
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ret.SimultaneousRequests = SimultaneousRequests
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if _, err := os.Stat(ret.ModelPath); err != nil {
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return Config{}, fmt.Errorf("LCH_MODEL_PATH: %w", err)
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}
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return ret, nil
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}
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type Application struct {
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cfg Config
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sem chan (struct{})
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}
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func main() {
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log.Printf("%s v%s", AppTitle, AppVersion)
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cfg, err := NewConfigFromEnv()
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if err != nil {
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log.Fatal(err)
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}
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app := Application{
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cfg: cfg,
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sem: make(chan struct{}, cfg.SimultaneousRequests), // use a buffered channel as a semaphore
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}
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router := http.NewServeMux()
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router.HandleFunc(`/`, func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set(`Server`, AppTitle+`/`+AppVersion)
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if r.Method == `GET` && r.URL.Path == `/` {
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app.GET_Root(w, r)
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} else if r.Method == `POST` && r.URL.Path == `/api/v1/generate` {
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app.POST_Chat(w, r)
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} else {
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http.Error(w, "Not found", 404)
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}
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})
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log.Printf("Listening on %s ...", cfg.NetBind)
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log.Fatal(http.ListenAndServe(cfg.NetBind, router))
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}
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