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171 lines
4.8 KiB
171 lines
4.8 KiB
package api
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import (
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"errors"
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"github.com/go-skynet/LocalAI/internal"
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"github.com/go-skynet/LocalAI/pkg/assets"
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"github.com/gofiber/fiber/v2"
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"github.com/gofiber/fiber/v2/middleware/cors"
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"github.com/gofiber/fiber/v2/middleware/logger"
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"github.com/gofiber/fiber/v2/middleware/recover"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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)
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func App(opts ...AppOption) (*fiber.App, error) {
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options := newOptions(opts...)
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zerolog.SetGlobalLevel(zerolog.InfoLevel)
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if options.debug {
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zerolog.SetGlobalLevel(zerolog.DebugLevel)
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}
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// Return errors as JSON responses
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app := fiber.New(fiber.Config{
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BodyLimit: options.uploadLimitMB * 1024 * 1024, // this is the default limit of 4MB
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DisableStartupMessage: options.disableMessage,
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// Override default error handler
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ErrorHandler: func(ctx *fiber.Ctx, err error) error {
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// Status code defaults to 500
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code := fiber.StatusInternalServerError
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// Retrieve the custom status code if it's a *fiber.Error
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var e *fiber.Error
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if errors.As(err, &e) {
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code = e.Code
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}
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// Send custom error page
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return ctx.Status(code).JSON(
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ErrorResponse{
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Error: &APIError{Message: err.Error(), Code: code},
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},
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)
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},
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})
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if options.debug {
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app.Use(logger.New(logger.Config{
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Format: "[${ip}]:${port} ${status} - ${method} ${path}\n",
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}))
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}
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log.Info().Msgf("Starting LocalAI using %d threads, with models path: %s", options.threads, options.loader.ModelPath)
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log.Info().Msgf("LocalAI version: %s", internal.PrintableVersion())
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cm := NewConfigMerger()
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if err := cm.LoadConfigs(options.loader.ModelPath); err != nil {
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log.Error().Msgf("error loading config files: %s", err.Error())
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}
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if options.configFile != "" {
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if err := cm.LoadConfigFile(options.configFile); err != nil {
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log.Error().Msgf("error loading config file: %s", err.Error())
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}
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}
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if options.debug {
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for _, v := range cm.ListConfigs() {
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cfg, _ := cm.GetConfig(v)
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log.Debug().Msgf("Model: %s (config: %+v)", v, cfg)
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}
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}
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if options.assetsDestination != "" {
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// Extract files from the embedded FS
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err := assets.ExtractFiles(options.backendAssets, options.assetsDestination)
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log.Debug().Msgf("Extracting backend assets files to %s", options.assetsDestination)
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if err != nil {
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log.Warn().Msgf("Failed extracting backend assets files: %s (might be required for some backends to work properly, like gpt4all)", err)
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}
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}
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// Default middleware config
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app.Use(recover.New())
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if options.preloadJSONModels != "" {
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if err := ApplyGalleryFromString(options.loader.ModelPath, options.preloadJSONModels, cm, options.galleries); err != nil {
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return nil, err
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}
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}
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if options.preloadModelsFromPath != "" {
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if err := ApplyGalleryFromFile(options.loader.ModelPath, options.preloadModelsFromPath, cm, options.galleries); err != nil {
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return nil, err
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}
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}
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if options.cors {
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if options.corsAllowOrigins == "" {
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app.Use(cors.New())
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} else {
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app.Use(cors.New(cors.Config{
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AllowOrigins: options.corsAllowOrigins,
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}))
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}
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}
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// LocalAI API endpoints
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applier := newGalleryApplier(options.loader.ModelPath)
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applier.start(options.context, cm)
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app.Get("/version", func(c *fiber.Ctx) error {
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return c.JSON(struct {
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Version string `json:"version"`
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}{Version: internal.PrintableVersion()})
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})
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app.Post("/models/apply", applyModelGallery(options.loader.ModelPath, cm, applier.C, options.galleries))
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app.Get("/models/available", listModelFromGallery(options.galleries, options.loader.ModelPath))
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app.Get("/models/jobs/:uuid", getOpStatus(applier))
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// openAI compatible API endpoint
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// chat
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app.Post("/v1/chat/completions", chatEndpoint(cm, options))
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app.Post("/chat/completions", chatEndpoint(cm, options))
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// edit
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app.Post("/v1/edits", editEndpoint(cm, options))
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app.Post("/edits", editEndpoint(cm, options))
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// completion
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app.Post("/v1/completions", completionEndpoint(cm, options))
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app.Post("/completions", completionEndpoint(cm, options))
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app.Post("/v1/engines/:model/completions", completionEndpoint(cm, options))
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// embeddings
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app.Post("/v1/embeddings", embeddingsEndpoint(cm, options))
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app.Post("/embeddings", embeddingsEndpoint(cm, options))
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app.Post("/v1/engines/:model/embeddings", embeddingsEndpoint(cm, options))
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// audio
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app.Post("/v1/audio/transcriptions", transcriptEndpoint(cm, options))
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app.Post("/tts", ttsEndpoint(cm, options))
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// images
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app.Post("/v1/images/generations", imageEndpoint(cm, options))
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if options.imageDir != "" {
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app.Static("/generated-images", options.imageDir)
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}
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if options.audioDir != "" {
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app.Static("/generated-audio", options.audioDir)
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}
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ok := func(c *fiber.Ctx) error {
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return c.SendStatus(200)
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}
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// Kubernetes health checks
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app.Get("/healthz", ok)
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app.Get("/readyz", ok)
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// models
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app.Get("/v1/models", listModels(options.loader, cm))
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app.Get("/models", listModels(options.loader, cm))
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return app, nil
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}
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