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Getting Started with GO

This integration guide follows the Quick Start Guide and assumes you have you have fully completed the "Hands-on" path. You should be able to consume the API by browsing the URL http://localhost:1337/api/restaurants.

If you haven't gone through the Quick Start guide, the way you request a Strapi API with GO remains the same except that you do not fetch the same content.

Create a Go file​

Be sure to have Go installed on your computer.

touch strapi.go

Go has built-in packages to make HTTP Requests like GET, POST, PUT, and DELETE. We will use the "net/http" package along with other 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.

Example GET request
response, error := http.Get("http://localhost:1337/api/restaurants")
Example 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/api/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.

Example POST 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/api/restaurants", "application/json", responseBody)
Example 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/api/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/api/restaurants", "application/json", responseBody)
  //Handle Error
  if error != nil {
    log.Fatalf("An Error Occurred %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/api/restaurants/1 and then update what we want to update. In this example, we are going to update "Biscotte Restaurant" to "Restaurant Home".

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