# Getting Started with GO

This integration guide is following the Quick Start Guide. We assume that you have fully completed its "Hands-on" path, and therefore can consume the API by browsing this url (opens new window).

If you haven't gone through the Quick Start guide, the way you request a Strapi API with GO (opens new window) remains the same except that you will not fetch the same content.

# Create a Go file

Be sure to have Go installed (opens new window) on your computer.

touch strapi.go

Go has inbuilt module/package needed to make HTTP Requests like GET, POST PUT, DELETE. We will use it("net/http") along with other modules/packages.

# GET Request your collection type

Execute a GET request on the restaurant Collection Type in order to fetch all your restaurants.

Be sure that you activated the find permission for the restaurant Collection Type.

Request

response, error := http.Get("http://localhost:1337/restaurants")

Response

[{
  "id": 1,
  "name": "Biscotte Restaurant",
  "description": "Welcome to Biscotte restaurant! Restaurant Biscotte offers a cuisine based on fresh, quality products, often local, organic when possible, and always produced by passionate producers.",
  "created_at": "2021-03-31T11:37:16.964Z",
  "updated_at": "2021-03-31T11:37:16.975Z",
  "categories": [{
      "id": 1,
      "name": "French Food",
      "created_by": 1,
      "updated_by": 1,
      "created_at": "2021-03-31T11:36:23.164Z",
      "updated_at": "2021-03-31T11:36:23.172Z"
    },
    {
      "id": 2,
      "name": "Brunch ",
      "published_at": "2021-03-07T10:10:19.608Z",
      "created_at": "2021-03-07T10:10:14.477Z",
      "updated_at": "2021-03-07T10:10:19.649Z"
    }
  ]
}]

# Example

package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	getD()
}

func getD() {
	fmt.Println("Getting data...")
	res, error := http.Get("http://localhost:1337/restaurants")
	if error != nil {
		fmt.Printf("The HTTP request failed with error %s\n", error)
	} else {
		data, _ := ioutil.ReadAll(res.Body)
		fmt.Println(string(data))
	}
}

# POST Request your collection type

Execute a POST request on the restaurant Collection Type in order to create a restaurant.

Be sure that you activated the create permission for the restaurant Collection Type and the find permission for the category Collection type.

Request

postRest, _ := json.Marshal(map[string]string{
  "name":  "Nwanyi Igbo",
  "description": "This is a very nice place to eat native soup",
})
responseBody := bytes.NewBuffer(postRest)
resp, error := http.Post("http://localhost:1337/restaurants", "application/json", responseBody)

Response

{
  "id": 2,
  "name": "Nwanyi Igbo",
  "description": "This is a very nice place to eat native soup",
  "created_at": "2021-03-04T09:57:11.669Z",
  "updated_at": "2021-04-04T09:57:11.669Z",
  "categories": []
}

# Example

package main

import (
  "bytes"
  "encoding/json"
  "fmt"
  "io/ioutil"
  "log"
  "net/http"
)

func main() {
  postD()
}

func getD() {
  fmt.Println("Getting data...")
  resp, error := http.Get("http://localhost:1337/restaurants")
  if error != nil {
    fmt.Printf("The HTTP request failed with error %s\n", error)
  } else {
    data, _ := ioutil.ReadAll(resp.Body)
    fmt.Println(string(data))
  }
}

func postD() {
  fmt.Println("Posting  data...")
  //Encode the data
  postRest, _ := json.Marshal(map[string]string{
    "name":        "Nwanyi Igbo",
    "description": "This is a very nice place to eat native soup",
  })
  responseBody := bytes.NewBuffer(postRest)
  resp, error := http.Post("http://localhost:1337/restaurants", "application/json", responseBody)
  //Handle Error
  if error != nil {
    log.Fatalf("An Error Occured %v", error)
  }
  defer resp.Body.Close()
  //Read the response body
  body, error := ioutil.ReadAll(resp.Body)
  if error != nil {
    log.Fatalln(error)
  }
  fmt.Println(string(body))
}

# PUT Request your collection type

Execute a PUT request on the restaurant Collection Type in order to update the category of a restaurant.

Be sure that you activated the update permission for the restaurant Collection Type. PUT Request is sligtly different as we need to target the particular thing we want update. We do this by first making a request to http://localhost:1337/restaurants/1 and then update what we want to update. In this example, we are going to update "Biscotte Restaurant" to "Restaurant Home".

Request

putRest, _ := json.Marshal(map[string]string {
  "name": "Resturant Homes",    
})
client := &http.Client{}
url := "http://localhost:1337/restaurants/1"
req, error := http.NewRequest(http.MethodPut, url, bytes.NewBuffer(putRest))
req.Header.Set("Content-Type", "application/json")

Response

{
  "id": 1,
  "name": "Resturant Homes",
  "description": "Welcome to Biscotte restaurant! Restaurant Biscotte offers a cuisine based on fresh, quality products, often local, organic when possible, and always produced by passionate producers.",
  "published_at": "2021-03-07T10:10:46.949Z",
  "created_at": "2021-03-07T10:08:53.929Z",
  "updated_at": "2021-03-07T14:06:01.567Z",
  "categories": [{
      "id": 1,
      "name": "French Food",
      "published_at": "2021-03-07T10:09:43.232Z",
      "created_at": "2021-03-07T10:09:34.135Z",
      "updated_at": "2021-03-07T10:09:43.280Z"
    },
    {
      "id": 2,
      "name": "Brunch ",
      "published_at": "2021-03-07T10:10:19.608Z",
      "created_at": "2021-03-07T10:10:14.477Z",
      "updated_at": "2021-03-07T10:10:19.649Z"
    }
  ]
}

# Example

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

func main() {
	//getD()
	//postD()
	putD()
}
func getD() {
	fmt.Println("Getting data...")
	resp, error := http.Get("http://localhost:1337/restaurants")
	if error != nil {
		fmt.Printf("The HTTP request failed with error %s\n", error)
	} else {
		data, _ := ioutil.ReadAll(resp.Body)
		fmt.Println(string(data))
	}
}
func postD() {
	fmt.Println("Posting  data...")

	// Encode the data
	postRest, _ := json.Marshal(map[string]string{
		"name":        "Nwanyi Igbo",
		"description": "This is a very nice place to eat native soup",
	})

	responseBody := bytes.NewBuffer(postRest)
	resp, error := http.Post("http://localhost:1337/restaurants", "application/json", responseBody)
	// Handle Error
	if error != nil {
		log.Fatalf("An Error Occured %v", error)
	}
	defer resp.Body.Close()
	// Read the response body
	body, error := ioutil.ReadAll(resp.Body)
	if error != nil {
		log.Fatalln(error)
	}

	fmt.Println(string(body))
}
func putD() {
	putRest, _ := json.Marshal(map[string]string{
		"name": "Resturant Homes",
	})
	client := &http.Client{}
	url := "http://localhost:1337/restaurants/1"
	req, error := http.NewRequest(http.MethodPut, url, bytes.NewBuffer(putRest))
	req.Header.Set("Content-Type", "application/json")
	if error != nil {
		log.Fatal(error)
	}
	resp, error := client.Do(req)
	if error != nil {
		log.Fatal(error)
	}
	defer resp.Body.Close()

	body, error := ioutil.ReadAll(resp.Body)
	if error != nil {
		log.Fatal(error)
	}
	fmt.Println(string(body))
}

# Conclusion

Here is how to request your Collection Types in Strapi using Go. When you create a Collection Type or a Single Type you will have a certain number of REST API endpoints available to interact with.

We just used the GET, POST and PUT methods here but you can get one entry, get how much entry you have and delete an entry too. Learn more about API Endpoints.