fix: recognize '/v1' prefix

process.go

@@ -91,7 +91,9 @@ func processRequest(c *gin.Context, upstream *OPENAI_UPSTREAM, record *Record, s
 		out.Host = remote.Host
 		out.URL.Scheme = remote.Scheme
 		out.URL.Host = remote.Host
-		out.URL.Path = in.URL.Path
+
+		out.URL.Path = upstream.URL.Path + strings.TrimPrefix(in.URL.Path, "/v1")
+
 		out.Header = http.Header{}
 		out.Header.Set("Host", remote.Host)
 		if upstream.SK == "asis" {

structure.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"log"
+	"net/url"
 	"os"
 
 	"gopkg.in/yaml.v3"
@@ -19,6 +20,7 @@ type OPENAI_UPSTREAM struct {
 	SK       string `yaml:"sk"`
 	Endpoint string `yaml:"endpoint"`
 	Timeout  int64  `yaml:"timeout"`
+	URL      *url.URL
 }
 
 func readConfig(filepath string) Config {
@@ -50,5 +52,14 @@ func readConfig(filepath string) Config {
 		config.DBAddr = "./db.sqlite"
 	}
 
+	for i, upstream := range config.Upstreams {
+		// parse upstream endpoint URL
+		endpoint, err := url.Parse(upstream.Endpoint)
+		if err != nil {
+			log.Fatalf("Can't parse upstream endpoint URL '%s': %s", upstream.Endpoint, err)
+		}
+		config.Upstreams[i].URL = endpoint
+	}
+
 	return config
 }