mirror of
https://github.com/mudler/LocalAI.git
synced 2024-06-07 19:40:48 +00:00
228 lines
7.0 KiB
Go
228 lines
7.0 KiB
Go
package api
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"strings"
|
|
|
|
config "github.com/go-skynet/LocalAI/api/config"
|
|
"github.com/go-skynet/LocalAI/api/localai"
|
|
"github.com/go-skynet/LocalAI/api/openai"
|
|
"github.com/go-skynet/LocalAI/api/options"
|
|
"github.com/go-skynet/LocalAI/api/schema"
|
|
"github.com/go-skynet/LocalAI/internal"
|
|
"github.com/go-skynet/LocalAI/pkg/assets"
|
|
|
|
"github.com/gofiber/fiber/v2"
|
|
"github.com/gofiber/fiber/v2/middleware/cors"
|
|
"github.com/gofiber/fiber/v2/middleware/logger"
|
|
"github.com/gofiber/fiber/v2/middleware/recover"
|
|
"github.com/rs/zerolog"
|
|
"github.com/rs/zerolog/log"
|
|
)
|
|
|
|
func Startup(opts ...options.AppOption) (*options.Option, *config.ConfigLoader, error) {
|
|
options := options.NewOptions(opts...)
|
|
|
|
zerolog.SetGlobalLevel(zerolog.InfoLevel)
|
|
if options.Debug {
|
|
zerolog.SetGlobalLevel(zerolog.DebugLevel)
|
|
}
|
|
|
|
log.Info().Msgf("Starting LocalAI using %d threads, with models path: %s", options.Threads, options.Loader.ModelPath)
|
|
log.Info().Msgf("LocalAI version: %s", internal.PrintableVersion())
|
|
|
|
cl := config.NewConfigLoader()
|
|
if err := cl.LoadConfigs(options.Loader.ModelPath); err != nil {
|
|
log.Error().Msgf("error loading config files: %s", err.Error())
|
|
}
|
|
|
|
if options.ConfigFile != "" {
|
|
if err := cl.LoadConfigFile(options.ConfigFile); err != nil {
|
|
log.Error().Msgf("error loading config file: %s", err.Error())
|
|
}
|
|
}
|
|
|
|
if options.Debug {
|
|
for _, v := range cl.ListConfigs() {
|
|
cfg, _ := cl.GetConfig(v)
|
|
log.Debug().Msgf("Model: %s (config: %+v)", v, cfg)
|
|
}
|
|
}
|
|
|
|
if options.AssetsDestination != "" {
|
|
// Extract files from the embedded FS
|
|
err := assets.ExtractFiles(options.BackendAssets, options.AssetsDestination)
|
|
log.Debug().Msgf("Extracting backend assets files to %s", options.AssetsDestination)
|
|
if err != nil {
|
|
log.Warn().Msgf("Failed extracting backend assets files: %s (might be required for some backends to work properly, like gpt4all)", err)
|
|
}
|
|
}
|
|
|
|
if options.PreloadJSONModels != "" {
|
|
if err := localai.ApplyGalleryFromString(options.Loader.ModelPath, options.PreloadJSONModels, cl, options.Galleries); err != nil {
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
|
|
if options.PreloadModelsFromPath != "" {
|
|
if err := localai.ApplyGalleryFromFile(options.Loader.ModelPath, options.PreloadModelsFromPath, cl, options.Galleries); err != nil {
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
|
|
// turn off any process that was started by GRPC if the context is canceled
|
|
go func() {
|
|
<-options.Context.Done()
|
|
log.Debug().Msgf("Context canceled, shutting down")
|
|
options.Loader.StopAllGRPC()
|
|
}()
|
|
|
|
return options, cl, nil
|
|
}
|
|
|
|
func App(opts ...options.AppOption) (*fiber.App, error) {
|
|
|
|
options, cl, err := Startup(opts...)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed basic startup tasks with error %s", err.Error())
|
|
}
|
|
|
|
// Return errors as JSON responses
|
|
app := fiber.New(fiber.Config{
|
|
BodyLimit: options.UploadLimitMB * 1024 * 1024, // this is the default limit of 4MB
|
|
DisableStartupMessage: options.DisableMessage,
|
|
// Override default error handler
|
|
ErrorHandler: func(ctx *fiber.Ctx, err error) error {
|
|
// Status code defaults to 500
|
|
code := fiber.StatusInternalServerError
|
|
|
|
// Retrieve the custom status code if it's a *fiber.Error
|
|
var e *fiber.Error
|
|
if errors.As(err, &e) {
|
|
code = e.Code
|
|
}
|
|
|
|
// Send custom error page
|
|
return ctx.Status(code).JSON(
|
|
schema.ErrorResponse{
|
|
Error: &schema.APIError{Message: err.Error(), Code: code},
|
|
},
|
|
)
|
|
},
|
|
})
|
|
|
|
if options.Debug {
|
|
app.Use(logger.New(logger.Config{
|
|
Format: "[${ip}]:${port} ${status} - ${method} ${path}\n",
|
|
}))
|
|
}
|
|
|
|
// Default middleware config
|
|
app.Use(recover.New())
|
|
|
|
// Auth middleware checking if API key is valid. If no API key is set, no auth is required.
|
|
auth := func(c *fiber.Ctx) error {
|
|
if len(options.ApiKeys) > 0 {
|
|
authHeader := c.Get("Authorization")
|
|
if authHeader == "" {
|
|
return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Authorization header missing"})
|
|
}
|
|
authHeaderParts := strings.Split(authHeader, " ")
|
|
if len(authHeaderParts) != 2 || authHeaderParts[0] != "Bearer" {
|
|
return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Invalid Authorization header format"})
|
|
}
|
|
|
|
apiKey := authHeaderParts[1]
|
|
validApiKey := false
|
|
for _, key := range options.ApiKeys {
|
|
if apiKey == key {
|
|
validApiKey = true
|
|
}
|
|
}
|
|
if !validApiKey {
|
|
return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Invalid API key"})
|
|
}
|
|
}
|
|
return c.Next()
|
|
}
|
|
|
|
if options.CORS {
|
|
var c func(ctx *fiber.Ctx) error
|
|
if options.CORSAllowOrigins == "" {
|
|
c = cors.New()
|
|
} else {
|
|
c = cors.New(cors.Config{AllowOrigins: options.CORSAllowOrigins})
|
|
}
|
|
|
|
app.Use(c)
|
|
}
|
|
|
|
// LocalAI API endpoints
|
|
galleryService := localai.NewGalleryService(options.Loader.ModelPath)
|
|
galleryService.Start(options.Context, cl)
|
|
|
|
app.Get("/version", auth, func(c *fiber.Ctx) error {
|
|
return c.JSON(struct {
|
|
Version string `json:"version"`
|
|
}{Version: internal.PrintableVersion()})
|
|
})
|
|
|
|
app.Post("/models/apply", auth, localai.ApplyModelGalleryEndpoint(options.Loader.ModelPath, cl, galleryService.C, options.Galleries))
|
|
app.Get("/models/available", auth, localai.ListModelFromGalleryEndpoint(options.Galleries, options.Loader.ModelPath))
|
|
app.Get("/models/jobs/:uuid", auth, localai.GetOpStatusEndpoint(galleryService))
|
|
|
|
// openAI compatible API endpoint
|
|
|
|
// chat
|
|
app.Post("/v1/chat/completions", auth, openai.ChatEndpoint(cl, options))
|
|
app.Post("/chat/completions", auth, openai.ChatEndpoint(cl, options))
|
|
|
|
// edit
|
|
app.Post("/v1/edits", auth, openai.EditEndpoint(cl, options))
|
|
app.Post("/edits", auth, openai.EditEndpoint(cl, options))
|
|
|
|
// completion
|
|
app.Post("/v1/completions", auth, openai.CompletionEndpoint(cl, options))
|
|
app.Post("/completions", auth, openai.CompletionEndpoint(cl, options))
|
|
app.Post("/v1/engines/:model/completions", auth, openai.CompletionEndpoint(cl, options))
|
|
|
|
// embeddings
|
|
app.Post("/v1/embeddings", auth, openai.EmbeddingsEndpoint(cl, options))
|
|
app.Post("/embeddings", auth, openai.EmbeddingsEndpoint(cl, options))
|
|
app.Post("/v1/engines/:model/embeddings", auth, openai.EmbeddingsEndpoint(cl, options))
|
|
|
|
// audio
|
|
app.Post("/v1/audio/transcriptions", auth, openai.TranscriptEndpoint(cl, options))
|
|
app.Post("/tts", auth, localai.TTSEndpoint(cl, options))
|
|
|
|
// images
|
|
app.Post("/v1/images/generations", auth, openai.ImageEndpoint(cl, options))
|
|
|
|
if options.ImageDir != "" {
|
|
app.Static("/generated-images", options.ImageDir)
|
|
}
|
|
|
|
if options.AudioDir != "" {
|
|
app.Static("/generated-audio", options.AudioDir)
|
|
}
|
|
|
|
ok := func(c *fiber.Ctx) error {
|
|
return c.SendStatus(200)
|
|
}
|
|
|
|
// Kubernetes health checks
|
|
app.Get("/healthz", ok)
|
|
app.Get("/readyz", ok)
|
|
|
|
// Experimental Backend Statistics Module
|
|
backendMonitor := localai.NewBackendMonitor(cl, options) // Split out for now
|
|
app.Get("/backend/monitor", localai.BackendMonitorEndpoint(backendMonitor))
|
|
|
|
// models
|
|
app.Get("/v1/models", auth, openai.ListModelsEndpoint(options.Loader, cl))
|
|
app.Get("/models", auth, openai.ListModelsEndpoint(options.Loader, cl))
|
|
|
|
return app, nil
|
|
}
|