How do I build a REST API with Echo in Go?

Building a REST API with Echo in Go is straightforward and efficient. Echo is a high-performance, extensible, minimalist web framework for Go that makes it easy to create web applications and RESTful APIs. Below is a simple example of how to set up a REST API using the Echo framework in Go.


package main

import (
    "net/http"
    "github.com/labstack/echo/v4"
)

// Define a struct to represent the data
type Item struct {
    ID   string `json:"id"`
    Name string `json:"name"`
}

// In-memory data store
var items = map[string]Item{
    "1": {ID: "1", Name: "Item One"},
    "2": {ID: "2", Name: "Item Two"},
}

// Get Items
func getItems(c echo.Context) error {
    return c.JSON(http.StatusOK, items)
}

// Get Item by ID
func getItem(c echo.Context) error {
    id := c.Param("id")
    item, ok := items[id]
    if !ok {
        return c.JSON(http.StatusNotFound, map[string]string{"message": "Item not found"})
    }
    return c.JSON(http.StatusOK, item)
}

// Create Item
func createItem(c echo.Context) error {
    item := Item{}
    if err := c.Bind(&item); err != nil {
        return c.JSON(http.StatusBadRequest, map[string]string{"message": "Invalid input"})
    }
    items[item.ID] = item
    return c.JSON(http.StatusCreated, item)
}

func main() {
    e := echo.New()

    // Define the routes
    e.GET("/items", getItems)
    e.GET("/items/:id", getItem)
    e.POST("/items", createItem)

    // Start the server
    e.Logger.Fatal(e.Start(":8080"))
}

How do I build a REST API with Echo in Go?

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How do I build a REST API with Echo in Go?

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