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GeoIP Example

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This project demonstrates how to set up a GeoIP lookup service in a Go application using the Fiber framework.

Prerequisites​

Ensure you have the following installed:

Setup​

  1. Clone the repository:

    git clone https://github.com/gofiber/recipes.git
    cd recipes/geoip

  2. Install dependencies:

    go get

  3. Download the GeoIP2 database file and place it in the project directory.

Running the Application​

  1. Start the application:

    go run main.go

  2. Access the application at http://localhost:3000.

Example​

Here is an example main.go file for the Fiber application with GeoIP lookup:

package main

import (
    "log"
    "github.com/gofiber/fiber/v2"
    "github.com/oschwald/geoip2-golang"
    "net"
)

func main() {
    app := fiber.New()

    db, err := geoip2.Open("GeoLite2-City.mmdb")
    if err != nil {
        log.Fatal(err)
    }
    defer db.Close()

    app.Get("/geoip/:ip", func(c *fiber.Ctx) error {
        ip := c.Params("ip")
        parsedIP := net.ParseIP(ip)
        record, err := db.City(parsedIP)
        if err != nil {
            return c.Status(500).SendString(err.Error())
        }
        return c.JSON(record)
    })

    log.Fatal(app.Listen(":3000"))
}

References​