Checkout API

How to create check-out page using IntaSend 's checkout API
To create a checkout page, simply send a post request to /api/v1/checkout/ with the payment data parameters as payload.
Code examples
Send POST request to generate a checkout URL, then redirect the user to the checkout link to securely complete payment.
Curl
Go
JavaScript
PHP
Python
Curl
curl --location --request POST 'https://sandbox.intasend.com/api/v1/checkout/' \
--header 'Content-Type: application/json' \
--header 'Cookie: csrftoken=RJXYBwzJ3IeqxgrNZ0iRFblmo9dOO6Sr6PiCjkrwrmu5LUYDTuNJanEbVwWveodC' \
--data-raw '{
    "public_key": "<YOUR-PUBLISHABLE-API-KEY>",
    "amount": 10,
    "currency": "USD",
    "email": "[email protected]",
    "first_name": "John",
    "last_name": "Doe",
    "country": "US"
}'
Go
package main
​
import (
  "fmt"
  "strings"
  "net/http"
  "io/ioutil"
)
​
func main() {
​
  url := "https://sandbox.intasend.com/api/v1/checkout/"
  method := "POST"
​
  payload := strings.NewReader(`{
    "public_key": "<YOUR-PUBLISHABLE-API-KEY>",
    "amount": 10,
    "currency": "USD",
    "email": "[email protected]",
    "first_name": "John",
    "last_name": "Doe",
    "country": "US"
}`)
​
  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, payload)
​
  if err != nil {
    fmt.Println(err)
    return
  }
  req.Header.Add("Content-Type", "application/json")
​
  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()
​
  body, err := ioutil.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}
JavaScript
var axios = require('axios');
var data = JSON.stringify({"public_key":"<YOUR-PUBLISHABLE-API-KEY>","amount":10,"currency":"USD","email":"[email protected]","first_name":"John","last_name":"Doe","country":"US"});
​
var config = {
  method: 'post',
  url: 'https://sandbox.intasend.com/api/v1/checkout/',
  headers: { 
    'Content-Type': 'application/json'
  },
  data : data
};
​
axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});
​
PHP
<?php
​
$curl = curl_init();
​
curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://sandbox.intasend.com/api/v1/checkout/',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS =>'{
    "public_key": "<YOUR-PUBLISHABLE-API-KEY>",
    "amount": 10,
    "currency": "USD",
    "email": "[email protected]",
    "first_name": "John",
    "last_name": "Doe",
    "country": "US"
}',
  CURLOPT_HTTPHEADER => array(
    'Content-Type: application/json'
  ),
));
​
$response = curl_exec($curl);
​
curl_close($curl);
echo $response;
​
Python
import requests
​
url = "https://sandbox.intasend.com/api/v1/checkout/"
​
payload={
  "public_key":"<YOUR-PUBLISHABLE-API-KEY>",
  "amount": 10,
  "currency": "USD",
  "email": "[email protected]",
  "first_name": "John",
  "last_name": "Doe",
  "country": "US"
}
headers = {
  'Content-Type': 'application/json'
}
​
response = requests.request("POST", url, headers=headers, data=payload)
​
print(response.text)
​
Response
The checkout request returns a JSON response with a url field. Redirect the user to the url to securely complete payment.
{
    "id": "666f4283-ffb2-4633-8c30-5338a50be37d",
    "url": "https://sandbox.intasend.com/checkout/666f4283-ffb2-4633-8c30-5338a50be37d/express/",
    "signature": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzY29wZSI6ImV4cHJl....",
    "first_name": "John",
    "last_name": "Doe",
    "phone_number": null,
    "email": "[email protected]",
    "country": "US",
    "address": null,
    "city": null,
    "state": null,
    "zipcode": null,
    "api_ref": null,
    "amount": "10.00",
    "currency": "USD",
    "mobile_tarrif": "BUSINESS-PAYS",
    "card_tarrif": "BUSINESS-PAYS",
    "created_at": "2021-08-05T10:53:08.761765+03:00",
    "updated_at": "2021-08-05T10:53:08.761794+03:00"
}
Code Example using Axios (JavaScript)
Here is a quick example of how to create a link using JavaScript. Note this can be done from any backend e.g PHP, Python, and Java
1. Install Axios
We'll use Axios to send HTTP post requests. Feel free to use any other tool that works well for you.
<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.21.1/axios.min.js"></script>
2. Create a check-out link request
Send a POST request to the API environment that you'd wish to create the link. Learn more on test and live environment here.
A successful request will return an url which in this case will be our check-out URL. Share this url with the customer for them to complete payment.
function generateLink() {
    // Use https://payment.intasend.com/api/v1/checkout/ for live payments
    let url = "https://sandbox.intasend.com/api/v1/checkout/"
    let payload = {
        public_key: "REPLACE-WITH-YOUR-PUBLISHABLE-KEY",
        amount: 10,
        currency: "KES",
        email: "[email protected]",
        first_name: "John",
        last_name: "Doe",
        country: "US"
    }
    axios.post(url, payload).then((resp) => {
        if (resp.data.url) {
            window.open(resp.data.url, '_blank').focus();
        }
    }).catch((err) => alert("Problem experienced while initializing your request: " + err))
}
Trigger the above function using on-click event. Here is a sample button for your reference.
<button onclick="generateLink()">Pay now</button>
Using a custom button
Direct M-Pesa STK-Push
Last updated 1 month ago