Go Fiber Guide
Quick Start
go get github.com/gofiber/fiber/v2
package main
import "github.com/gofiber/fiber/v2"
func main() {
app := fiber.New(fiber.Config{
AppName: "MyAPI",
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
})
app.Get("/", func(c *fiber.Ctx) error {
return c.JSON(fiber.Map{"message": "Hello, World!"})
})
app.Get("/users/:id", getUser)
app.Post("/users", createUser)
app.Put("/users/:id", updateUser)
app.Delete("/users/:id", deleteUser)
app.Listen(":8080")
}
Middleware
import (
"github.com/gofiber/fiber/v2/middleware/cors"
"github.com/gofiber/fiber/v2/middleware/logger"
"github.com/gofiber/fiber/v2/middleware/recover"
"github.com/gofiber/fiber/v2/middleware/limiter"
)
app.Use(recover.New())
app.Use(logger.New())
app.Use(cors.New(cors.Config{
AllowOrigins: "https://example.com",
AllowMethods: "GET,POST,PUT,DELETE",
}))
app.Use(limiter.New(limiter.Config{
Max: 100,
Expiration: 1 * time.Minute,
}))
// Custom middleware
app.Use(func(c *fiber.Ctx) error {
c.Set("X-Request-ID", uuid.New().String())
return c.Next()
})
Context Methods
| Method | Purpose |
|---|---|
| c.Params("id") | URL path parameter |
| c.Query("page") | Query string parameter |
| c.BodyParser(&dto) | Parse request body |
| c.JSON(data) | JSON response |
| c.Status(404).JSON(...) | Status + JSON |
| c.Redirect("/path") | Redirect |
| c.Locals("key", val) | Store request-scoped data |
| c.Get("X-Header") | Get request header |