const response = await fetch('https://service.pcibooking.net/api/eWalletOperation', {
  method: 'POST',
  headers: {
    'Authorization': 'APIKEY your-api-key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    operation: 'CHARGE',
    mode: 'LIVE',
    PaymentGatewayAccountId: 'my-gateway-credentials',
    AllowedeWalletAccountIds: 'my-applepay,my-googlepay',
    CurrencyCode: 'USD',
    Amount: 99.99,
    CountryCode: 'US',
    AllowedBrands: 'visa,mastercard,amex',
    CustomerEmail: 'customer@example.com',
    merchantReference: 'ORDER-12345'
  })
});
const data = await response.json();
console.log(data.sessionId);

import requests

response = requests.post(
    'https://service.pcibooking.net/api/eWalletOperation',
    headers={
        'Authorization': 'APIKEY your-api-key',
        'Content-Type': 'application/json'
    },
    json={
        'operation': 'CHARGE',
        'mode': 'LIVE',
        'PaymentGatewayAccountId': 'my-gateway-credentials',
        'AllowedeWalletAccountIds': 'my-applepay,my-googlepay',
        'CurrencyCode': 'USD',
        'Amount': 99.99,
        'CountryCode': 'US',
        'AllowedBrands': 'visa,mastercard,amex',
        'CustomerEmail': 'customer@example.com',
        'merchantReference': 'ORDER-12345'
    }
)
data = response.json()
print(data['sessionId'])

{
    "sessionId": "abc123def456",
    "status": "Created"
}

{
    "code": -125,
    "message": "Bad input data",
    "moreInfo": "...",
    "errorList": null
}