Configuration

Overview

pb-ext uses the functional options pattern for server configuration. This provides a flexible, type-safe way to customize server behavior without breaking changes.

Server Options

All server options are defined in core/server/server_options.go and re-exported through the public facade.

Available Options

WithConfig

Provide a custom PocketBase configuration

WithPocketbase

Use an existing PocketBase instance

InDeveloperMode

Enable developer mode (hot reload, verbose logging)

InNormalMode

Enable production mode (optimized, minimal logging)

Option Functions

InDeveloperMode / InNormalMode

The simplest way to configure the server:

cmd/server/main.go

func initApp(devMode bool) {
    var opts []app.Option

    if devMode {
        opts = append(opts, app.InDeveloperMode())
    } else {
        opts = append(opts, app.InNormalMode())
    }

    srv := app.New(opts...)
    // ...
}

Implementation:

core/server/server_options.go

// InDeveloperMode is a shortcut to enable developer mode.
func InDeveloperMode() Option {
    return func(opts *options) {
        opts.developer_mode = true
        log.Println("🔧 Developer mode")
    }
}

// InNormalMode is a shortcut to disable developer mode.
func InNormalMode() Option {
    return func(opts *options) {
        opts.developer_mode = false
        log.Println("🚀 Production mode")
    }
}

Developer mode sets PocketBase’s DefaultDev flag, enabling features like auto-migrations and verbose logging.

WithConfig

Provide a custom PocketBase configuration:

pbConfig := &pocketbase.Config{
    DefaultDev:     true,
    DefaultDataDir: "./custom_pb_data",
}

srv := app.New(app.WithConfig(pbConfig))

Implementation:

core/server/server_options.go

// WithConfig sets the PocketBase configuration to use.
// Using this together with WithPocketbase will panic.
func WithConfig(config *pocketbase.Config) Option {
    return func(opts *options) {
        opts.config = config
    }
}

WithConfig and WithPocketbase cannot be used together. If both are provided, the server will panic with ErrConfigurationConflict.

WithPocketbase

Use an existing PocketBase instance:

pb := pocketbase.New()
// Customize pb here...

srv := app.New(app.WithPocketbase(pb))

Implementation:

core/server/server_options.go

// WithPocketbase sets a fully initialized PocketBase instance to use.
// Cannot be used together with WithConfig; will panic if a config is already set.
func WithPocketbase(pocketbase *pocketbase.PocketBase) Option {
    return func(opts *options) {
        if opts.config != nil {
            pocketbase.Logger().Error(ErrConfigurationConflict.Error())
            panic(ErrConfigurationConflict)
        }
        opts.pocketbase = pocketbase
    }
}

Use WithPocketbase when you need fine-grained control over the PocketBase instance before pb-ext wraps it.

WithMode

Generic mode setter (used internally by InDeveloperMode / InNormalMode):

core/server/server_options.go

// WithMode sets whether developer mode is enabled.
func WithMode(developer_mode bool) Option {
    return func(opts *options) {
        opts.developer_mode = developer_mode
    }
}

Configuration Patterns

Pattern 1: Simple Mode Toggle

The most common pattern - toggle between dev and production:

cmd/server/main.go

func main() {
    devMode := flag.Bool("dev", false, "Run in developer mode")
    flag.Parse()

    initApp(*devMode)
}

func initApp(devMode bool) {
    var opts []app.Option

    if devMode {
        opts = append(opts, app.InDeveloperMode())
    } else {
        opts = append(opts, app.InNormalMode())
    }

    srv := app.New(opts...)
    // ...
}

Pattern 2: Custom PocketBase Config

Provide a custom data directory or other PocketBase settings:

pbConfig := &pocketbase.Config{
    DefaultDev:     true,
    DefaultDataDir: "./custom_pb_data",
}

srv := app.New(app.WithConfig(pbConfig))

Pattern 3: Existing PocketBase Instance

Use an existing PocketBase instance (useful for testing or advanced setups):

pb := pocketbase.New()
pb.Logger().SetLevel(slog.LevelDebug)
// Other PocketBase customizations...

srv := app.New(app.WithPocketbase(pb))

Pattern 4: Custom Port

Set a custom port using command-line arguments:

cmd/server/main.go

func main() {
    devMode := flag.Bool("dev", false, "Run in developer mode")
    port := flag.String("port", "8090", "HTTP port")
    flag.Parse()

    // Inject custom port into os.Args for PocketBase
    os.Args = []string{"app", "serve", fmt.Sprintf("--http=127.0.0.1:%s", *port)}

    initApp(*devMode)
}

PocketBase reads port configuration from os.Args. Set it before calling srv.Start().

Environment Variables

While pb-ext doesn’t enforce specific environment variables, you can integrate them with standard Go patterns:

func main() {
    // Read from environment
    devMode := os.Getenv("DEV_MODE") == "true"
    dataDir := os.Getenv("DATA_DIR")
    if dataDir == "" {
        dataDir = "./pb_data"
    }

    pbConfig := &pocketbase.Config{
        DefaultDev:     devMode,
        DefaultDataDir: dataDir,
    }

    srv := app.New(app.WithConfig(pbConfig))
    // ...
}

Common Environment Variables

Variable	Purpose	Example
`DEV_MODE`	Enable developer mode	`true` / `false`
`DATA_DIR`	PocketBase data directory	`./pb_data`
`HTTP_PORT`	Server port	`8090`
`LOG_LEVEL`	Logging level	`debug` / `info` / `warn` / `error`

PocketBase Integration

Accessing PocketBase

The underlying PocketBase instance is accessible via srv.App():

srv := app.New(app.InDeveloperMode())

// Access PocketBase directly
pb := srv.App()

// Use PocketBase APIs
pb.OnServe().BindFunc(func(e *core.ServeEvent) error {
    // Custom route
    e.Router.GET("/custom", func(c *core.RequestEvent) error {
        return c.JSON(200, map[string]string{"message": "Hello"})
    })
    return e.Next()
})

PocketBase Configuration

The pocketbase.Config struct supports these fields:

type Config struct {
    DefaultDev     bool   // Enable developer mode
    DefaultDataDir string // Data directory path
    DefaultDebug   bool   // Enable debug mode
}

Hook Registration

srv := app.New(app.InDeveloperMode())

// Register collections
registerCollections(srv.App())

// Register routes
registerRoutes(srv.App())

// Register jobs
registerJobs(srv.App())

// Custom serve hook
srv.App().OnServe().BindFunc(func(e *core.ServeEvent) error {
    app.SetupRecovery(srv.App(), e)
    return e.Next()
})

// Start server (triggers all hooks)
if err := srv.Start(); err != nil {
    log.Fatal(err)
}

Complete Example

Here’s the complete example from cmd/server/main.go:

cmd/server/main.go

package main

import (
    "flag"
    "log"

    app "github.com/magooney-loon/pb-ext/core"
    "github.com/pocketbase/pocketbase/core"
)

func main() {
    devMode := flag.Bool("dev", false, "Run in developer mode")
    generateSpecsDir := flag.String("generate-specs-dir", "", "Generate OpenAPI specs")
    validateSpecsDir := flag.String("validate-specs-dir", "", "Validate OpenAPI specs")
    flag.Parse()

    // OpenAPI spec generation mode
    if *generateSpecsDir != "" {
        gen := app.NewSpecGeneratorWithInitializer(func() (*app.APIVersionManager, error) {
            return initVersionedSystem(), nil
        })
        if err := gen.Generate(*generateSpecsDir, ""); err != nil {
            log.Fatal(err)
        }
        return
    }

    // OpenAPI spec validation mode
    if *validateSpecsDir != "" {
        gen := app.NewSpecGeneratorWithInitializer(func() (*app.APIVersionManager, error) {
            return initVersionedSystem(), nil
        })
        if err := gen.Validate(*validateSpecsDir); err != nil {
            log.Fatal(err)
        }
        return
    }

    initApp(*devMode)
}

func initApp(devMode bool) {
    var opts []app.Option

    if devMode {
        opts = append(opts, app.InDeveloperMode())
    } else {
        opts = append(opts, app.InNormalMode())
    }

    // Option 1: Use a custom PocketBase config
    // pbConfig := &pocketbase.Config{
    //     DefaultDev:     true,
    //     DefaultDataDir: "./custom_pb_data",
    // }
    // opts = append(opts, app.WithConfig(pbConfig))

    // Option 2: Use an existing PocketBase instance
    // pb := pocketbase.New()
    // opts = append(opts, app.WithPocketbase(pb))

    // Set custom port programmatically
    // os.Args = []string{"app", "serve", "--http=127.0.0.1:9090"}

    srv := app.New(opts...)

    app.SetupLogging(srv)

    registerCollections(srv.App())
    registerRoutes(srv.App())
    registerJobs(srv.App())

    srv.App().OnServe().BindFunc(func(e *core.ServeEvent) error {
        app.SetupRecovery(srv.App(), e)
        return e.Next()
    })

    if err := srv.Start(); err != nil {
        srv.App().Logger().Error("Fatal application error",
            "error", err,
            "uptime", srv.Stats().StartTime,
            "total_requests", srv.Stats().TotalRequests.Load(),
        )
        log.Fatal(err)
    }
}

Options Internal Structure

The internal options struct:

core/server/server_options.go

type options struct {
    config         *pocketbase.Config
    pocketbase     *pocketbase.PocketBase
    developer_mode bool
}

type Option func(*options)

Configuration Conflict

Attempting to use both WithConfig and WithPocketbase results in a panic:

core/server/server_options.go

var ErrConfigurationConflict = errors.New(
    `WithConfig cannot be used together with WithPocketbase, cause second ` +
    `contains already initialized pocketbase.Config instance. Just pass your ` +
    `config into pocketbase.NewWithConfig func, that's enough.`,
)

Best Practices

Use Simple Mode Toggle

Prefer InDeveloperMode() / InNormalMode() for most use cases

Only Customize When Needed

Only use WithConfig / WithPocketbase if you need advanced PocketBase customization

Environment-Aware Configuration

Read mode and settings from environment variables or flags

Always register user hooks before calling srv.Start()

Next Steps

Server Lifecycle

Understand bootstrap, serve, and runtime phases

Job Management

Learn how to register and manage cron jobs

Getting Started

Core Concepts

API Documentation

Features

Advanced

CLI Tools

Deployment

Overview

Server Options

Available Options

WithConfig

WithPocketbase

InDeveloperMode

InNormalMode

Option Functions

InDeveloperMode / InNormalMode

WithConfig

WithPocketbase

WithMode

Configuration Patterns

Pattern 1: Simple Mode Toggle

Pattern 2: Custom PocketBase Config

Pattern 3: Existing PocketBase Instance

Pattern 4: Custom Port

Environment Variables

Common Environment Variables

PocketBase Integration

Accessing PocketBase

PocketBase Configuration

Hook Registration

Complete Example

Options Internal Structure

Configuration Conflict

Best Practices

Next Steps

Server Lifecycle

Job Management

Getting Started

Core Concepts

API Documentation

Features

Advanced

CLI Tools

Deployment

​Overview

​Server Options

​Available Options

WithConfig

WithPocketbase

InDeveloperMode

InNormalMode

​Option Functions

​InDeveloperMode / InNormalMode

​WithConfig

​WithPocketbase

​WithMode

​Configuration Patterns

​Pattern 1: Simple Mode Toggle

​Pattern 2: Custom PocketBase Config

​Pattern 3: Existing PocketBase Instance

​Pattern 4: Custom Port

​Environment Variables

​Common Environment Variables

​PocketBase Integration

​Accessing PocketBase

​PocketBase Configuration

​Hook Registration

​Complete Example

​Options Internal Structure

​Configuration Conflict

​Best Practices

​Next Steps

Server Lifecycle

Job Management

Overview

Server Options

Available Options

Option Functions

InDeveloperMode / InNormalMode

WithConfig

WithPocketbase

WithMode

Configuration Patterns

Pattern 1: Simple Mode Toggle

Pattern 2: Custom PocketBase Config

Pattern 3: Existing PocketBase Instance

Pattern 4: Custom Port

Environment Variables

Common Environment Variables

PocketBase Integration

Accessing PocketBase

PocketBase Configuration

Hook Registration

Complete Example

Options Internal Structure

Configuration Conflict

Best Practices

Next Steps