curl --request POST \
  --url https://api.bango.com/ns/{nsid}/payment-provider/actions \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": "2adf1639-bb50-4df7-b8a0-79a0cd4f2277",
  "type": "SEND_MERCHANT_MESSAGE",
  "payload": {
    "recipientId": "<string>",
    "body": "<string>"
  }
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Basic <encoded-value>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: '2adf1639-bb50-4df7-b8a0-79a0cd4f2277',
    type: 'SEND_MERCHANT_MESSAGE',
    payload: {recipientId: '<string>', body: JSON.stringify('<string>')}
  })
};

fetch('https://api.bango.com/ns/{nsid}/payment-provider/actions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.bango.com/ns/{nsid}/payment-provider/actions"

payload = {
    "id": "2adf1639-bb50-4df7-b8a0-79a0cd4f2277",
    "type": "SEND_MERCHANT_MESSAGE",
    "payload": {
        "recipientId": "<string>",
        "body": "<string>"
    }
}
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "id": "2adf1639-bb50-4df7-b8a0-79a0cd4f2277",
  "type": "SESSION_RESPONSE",
  "payload": {
    "verificationSessionId": "581b2e40-741c-4683-ae66-46c9fe6f4d5e",
    "paymentProviderId": "OGNABTEL",
    "merchantId": "AUSSIE_APPS",
    "paymentInstrumentProperties": {
      "account": {
        "phoneNumber": "+447700900123"
      },
      "route": {
        "OGNAB_PLUS": {
          "paymentEligibilityStatus": "enabled"
        },
        "$remove": [
          "OGNAB_MINUS"
        ]
      }
    },
    "shared": {
      "nextAction": "none",
      "paymentProviderToMerchant": {
        "authRedirectUrl": "https://example.com/payment-provider/login"
      },
      "merchantToPaymentProvider": {
        "authSuccessRedirectUrl": "https://example.com/merchant/user-login-ok",
        "authFailureRedirectUrl": "https://example.com/merchant/user-login-failed"
      }
    }
  }
}

{
  "errors": [
    {
      "code": "invalid-json",
      "meta": {},
      "message": "The request body is not valid JSON",
      "url": "https://developer.bango.com/error-codes/invalid-json"
    }
  ]
}

{
  "errors": [
    {
      "code": "invalid-credentials",
      "meta": {},
      "message": "The supplied credentials are not valid",
      "url": "https://developer.bango.com/error-codes/invalid-credentials"
    }
  ]
}

{
  "errors": [
    {
      "code": "permission-denied",
      "meta": {},
      "message": "The client is not permitted to perform this operation",
      "url": "https://developer.bango.com/error-codes/permission-denied"
    }
  ]
}

{
  "errors": [
    {
      "code": "not-found",
      "meta": {},
      "message": "The requested resource was not found",
      "url": "https://developer.bango.com/error-codes/not-found"
    }
  ]
}

{
  "errors": [
    {
      "code": "pi-already-canceled",
      "meta": {},
      "message": "Payment instrument already canceled",
      "url": "https://developer.bango.com/error-codes/pi-already-canceled"
    }
  ]
}

{
  "errors": [
    {
      "code": "too-many-requests",
      "meta": {},
      "message": "Request limit reached. Please try again later",
      "url": "https://developer.bango.com/error-codes/too-many-requests"
    }
  ]
}

{
  "errors": [
    {
      "code": "internal-server-error",
      "meta": {
        "canRetry": true
      },
      "message": "The server encountered an unexpected condition which prevented it from fulfilling the request",
      "url": "https://developer.bango.com/error-codes/internal-server-error"
    }
  ]
}

{
  "errors": [
    {
      "code": "service-unavailable",
      "meta": {},
      "message": "The service is undergoing maintenance and is not available. Please try again later",
      "url": "https://developer.bango.com/error-codes/service-unavailable"
    }
  ]
}