curl --request POST \
  --url https://api.sandbox.pawapay.io/v1/widget/sessions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "depositId": "<INSERT_UUID_FOR_DEPOSIT>",
  "returnUrl": "https://merchant.com/paymentProcessed",
  "statementDescription": "Note of 4 to 22 chars",
  "amount": "15",
  "msisdn": "260763456789",
  "language": "EN",
  "country": "ZMB",
  "reason": "Ticket to festival",
  "metadata": [
    {
      "fieldName": "orderId",
      "fieldValue": "ORD-123456789"
    },
    {
      "fieldName": "customerId",
      "fieldValue": "customer@email.com",
      "isPII": true
    }
  ]
}
'

import requests

url = "https://api.sandbox.pawapay.io/v1/widget/sessions"

payload = {
    "depositId": "<INSERT_UUID_FOR_DEPOSIT>",
    "returnUrl": "https://merchant.com/paymentProcessed",
    "statementDescription": "Note of 4 to 22 chars",
    "amount": "15",
    "msisdn": "260763456789",
    "language": "EN",
    "country": "ZMB",
    "reason": "Ticket to festival",
    "metadata": [
        {
            "fieldName": "orderId",
            "fieldValue": "ORD-123456789"
        },
        {
            "fieldName": "customerId",
            "fieldValue": "customer@email.com",
            "isPII": True
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    depositId: '<INSERT_UUID_FOR_DEPOSIT>',
    returnUrl: 'https://merchant.com/paymentProcessed',
    statementDescription: 'Note of 4 to 22 chars',
    amount: '15',
    msisdn: '260763456789',
    language: 'EN',
    country: 'ZMB',
    reason: 'Ticket to festival',
    metadata: [
      {fieldName: 'orderId', fieldValue: 'ORD-123456789'},
      {fieldName: 'customerId', fieldValue: 'customer@email.com', isPII: true}
    ]
  })
};

fetch('https://api.sandbox.pawapay.io/v1/widget/sessions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.sandbox.pawapay.io/v1/widget/sessions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'depositId' => '<INSERT_UUID_FOR_DEPOSIT>',
    'returnUrl' => 'https://merchant.com/paymentProcessed',
    'statementDescription' => 'Note of 4 to 22 chars',
    'amount' => '15',
    'msisdn' => '260763456789',
    'language' => 'EN',
    'country' => 'ZMB',
    'reason' => 'Ticket to festival',
    'metadata' => [
        [
                'fieldName' => 'orderId',
                'fieldValue' => 'ORD-123456789'
        ],
        [
                'fieldName' => 'customerId',
                'fieldValue' => 'customer@email.com',
                'isPII' => true
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.sandbox.pawapay.io/v1/widget/sessions"

	payload := strings.NewReader("{\n  \"depositId\": \"<INSERT_UUID_FOR_DEPOSIT>\",\n  \"returnUrl\": \"https://merchant.com/paymentProcessed\",\n  \"statementDescription\": \"Note of 4 to 22 chars\",\n  \"amount\": \"15\",\n  \"msisdn\": \"260763456789\",\n  \"language\": \"EN\",\n  \"country\": \"ZMB\",\n  \"reason\": \"Ticket to festival\",\n  \"metadata\": [\n    {\n      \"fieldName\": \"orderId\",\n      \"fieldValue\": \"ORD-123456789\"\n    },\n    {\n      \"fieldName\": \"customerId\",\n      \"fieldValue\": \"customer@email.com\",\n      \"isPII\": true\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.sandbox.pawapay.io/v1/widget/sessions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"depositId\": \"<INSERT_UUID_FOR_DEPOSIT>\",\n  \"returnUrl\": \"https://merchant.com/paymentProcessed\",\n  \"statementDescription\": \"Note of 4 to 22 chars\",\n  \"amount\": \"15\",\n  \"msisdn\": \"260763456789\",\n  \"language\": \"EN\",\n  \"country\": \"ZMB\",\n  \"reason\": \"Ticket to festival\",\n  \"metadata\": [\n    {\n      \"fieldName\": \"orderId\",\n      \"fieldValue\": \"ORD-123456789\"\n    },\n    {\n      \"fieldName\": \"customerId\",\n      \"fieldValue\": \"customer@email.com\",\n      \"isPII\": true\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sandbox.pawapay.io/v1/widget/sessions")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"depositId\": \"<INSERT_UUID_FOR_DEPOSIT>\",\n  \"returnUrl\": \"https://merchant.com/paymentProcessed\",\n  \"statementDescription\": \"Note of 4 to 22 chars\",\n  \"amount\": \"15\",\n  \"msisdn\": \"260763456789\",\n  \"language\": \"EN\",\n  \"country\": \"ZMB\",\n  \"reason\": \"Ticket to festival\",\n  \"metadata\": [\n    {\n      \"fieldName\": \"orderId\",\n      \"fieldValue\": \"ORD-123456789\"\n    },\n    {\n      \"fieldName\": \"customerId\",\n      \"fieldValue\": \"customer@email.com\",\n      \"isPII\": true\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "redirectUrl": "https://paywith.pawapay.io/?token=AgV4aA3ZxKfGcdMIo6a6Upf7X2MRptdFUrc6Oi3U53CxC0YAkAADABVhd3MtY3J5cHRvLXB1YmxpYy1rZXkAREFzdDR5WktOeWVTRTZ5bTdhVTJJeno3bG1ydkFYenFpUWZqNVQxbGQ2RUgweEpkZVZ0cWJGM3hwMzI1VWN6VGxEdz09AAdwdXJwb3NlAA5jcmVhdGUtc2Vzc2lvbgAFc3RhZ2UAD3NpZ24tY2xvdWRmcm9udAACAAdhd3Mta21zAE5hcm46YXdzOmttczpldS1jZW50cmFsLTE6MTAxOTQ0Mzc3ODY2OmtleS82ZTgzZmVjMS00MWRhLTQxMWQt"
}

{
  "errorId": "94bd5e86-9bc4-4328-b128-c705f6496db8",
  "errorCode": 1,
  "errorMessage": "INVALID_INPUT: Missing required property 'returnUrl'"
}

{
  "message": "Unauthorized"
}

{
  "message": "Missing Authentication Token"
}

{
  "errorId": "94bd5e86-9bc4-4328-b128-c705f6496db8",
  "errorCode": 0,
  "errorMessage": "Internal error"
}