Examples
HTTP
Fiber

Fiber

This page details the example found in /examples/http/fiber, demonstrating how to integrate the HTTP+SSE transport with the Fiber web framework.

Fiber Server (examples/http/fiber)

This example shows how to mount the sse.Server and server.Server HTTP handlers onto a Fiber app, using the adaptor package to convert standard http.Handlers.

Key parts:

package main

import (
	"log"
	"net/http"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/adaptor" // For converting http.Handler
	"github.com/gofiber/fiber/v2/middleware/logger"
	// ... other imports: server, protocol, types, sse ...
)

func main() {
	// 1. Setup MCP Server (as usual)
	serverInfo := types.Implementation{Name: "fiber-http-server", Version: "0.1.0"}
	opts := server.NewServerOptions(serverInfo)
	srv := server.NewServer(opts)
	// Register tools, etc.

	// 2. Create SSE Transport Server
	sseServer := sse.NewServer(srv, opts.Logger)

	// 3. Setup Fiber App
	app := fiber.New()
	app.Use(logger.New()) // Example middleware

	// Convert the standard http.HandlerFunc to Fiber handlers
	eventsHandler := adaptor.HTTPHandlerFunc(sseServer.HTTPHandler)
	messageHandler := adaptor.HTTPHandlerFunc(srv.HTTPHandler)

	// Mount handlers
	app.Get("/events", eventsHandler)
	app.Post("/message", messageHandler)

	// Add a root handler for testing
	app.Get("/", func(c *fiber.Ctx) error {
		return c.SendString("Fiber MCP Server running. Use /events and /message.")
	})

	// 4. Start Fiber Server
	log.Println("Starting Fiber HTTP+SSE MCP server on :8080...")
	if err := app.Listen(":8080"); err != nil {
		log.Fatalf("Fiber server error: %v", err)
	}
}

To Run: Navigate to examples/http/fiber and run go run main.go. Clients connect as described in the net/http example (SSE to /events, POST to /message).

The key here is using adaptor.HTTPHandlerFunc from the Fiber middleware package to wrap the standard http.HandlerFunc provided by gomcp so it can be used with Fiber’s routing methods.

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