# Callback

Upon every **successful** payout transaction, a callback will be send to the link that you provided earlier through parameter 

```postman_json
callback_url
```

However, LeanX callback mechanism will send an encoded JWT message instead of plain text to provided link, which need to be decoded with a **hash key** before it can be read.  Below are the sample of callback response before and after encoding and decoding process.

{% hint style="info" %}
**Hash Key** can be retrieved in your portal dashboard under **API** page.
{% endhint %}

Sample callback response before JWT decode

{% code overflow="wrap" fullWidth="false" %}

```json
{
    "data": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJvdXRwdXQiOnsiaW52b2ljZV9ubyI6IjE3MjU0NjEzODg2SEdQaXVSdSIsImVycm9yX2Rlc2NyaXB0aW9uIjpbXSwiYmFua19yZXNwb25zZSI6eyJTdWNjZXNzIjp0cnVlLCJSZXN1bHQiOnsiT3JnbkZyb21BY2NvdW50Q3VycmVuY3kiOiJNWVIiLCJPcmduVGhpcmRQYXJ0eUFjY291bnRObyI6IjExNDA4NTgyNjUwOSIsIk9yZ25QYXltZW50RGVzY3JpcHRpb24iOiI2NmQ4NzM4YzJjMjNmIiwiQml6TXNnSUQiOiIyMDI0MDkwNE9DQkNNWUtMMDEwT0NCODk1NTA0OTEiLCJEaXNwbGF5TmFtZSI6IkFaUlVMIEFOVUFSIEJJTiBEVUwiLCJCYW5rUmVmZXJlbmNlTm8iOiIyMDI0MDkwNDIyNDk0ODU0ODMzOCIsIk9yZ25UcmFuc2FjdGlvbkFtb3VudCI6IjEuMCIsIkZyb21BY2NvdW50Tm8iOiI3OTAxMTA2MjQ4IiwiUGF5bWVudFN0YXR1cyI6IkFDU1AiLCJPcmduVGhpcmRQYXJ0eUJhbmtCSUNDb2RlIjoiTUJCRU1ZS0wiLCJPcmduQ3VycmVuY3kiOiJNWVIiLCJPcmduUmVjaXBpZW50UmVmZXJlbmNlIjoiUk0xIEZvcmV2ZXIifX0sImNsaWVudF9kYXRhIjp7InZpcnR1YWxfcG9vbF9yZWZlcmVuY2UiOiJQQVlPVVQtNUMxRToyMjQ5NDctTEVBTlgiLCJleHRlcm5hbF9pbnZvaWNlX3JlZiI6IlRFU1RJTkctUEFZT1VULTAyIiwicmVjaXBpZW50X3JlZmVyZW5jZSI6IlJNMSBGb3JldmVyIn0sImludm9pY2Vfc3RhdHVzX2lkIjoyLCJpbnZvaWNlX3N0YXR1cyI6IlNVQ0NFU1MiLCJhbW91bnQiOiIxLjAwIiwicGF5b3V0X3NlcnZpY2VfaWQiOjc3LCJjbGllbnRfY2FsbGJhY2tfdXJsIjoiaHR0cHM6Ly9hcGkubGVhbnguaW8vYXBpL3YxL2NhbGxiYWNrLXVybC9jYWxsYmFjay1yZWRpcmVjdD9fdXVpZD03OTk0MTFlOC0zYTZjLTQ4YmYtYmM0NS05ZWQ5MWJjZWQ2MmQiLCJjbGllbnRfdHJhbnNhY3Rpb25fZGV0YWlscyI6bnVsbCwicGF5b3V0X3BheW1lbnQiOnsiaXRlbSI6eyJiYWxhbmNlIjoiNy4wMCIsInZpcnR1YWxfcG9vbF9yZWZlcmVuY2UiOiJWQS0yRkRCNUMtMTkzNDIwNDM5NTUwLVBBWU9VVCIsInJlY29yZF9zdGF0dXNfaWQiOjEsInZpcnR1YWxfcG9vbF9jb2xsZWN0aW9uX3R5cGVfaWQiOjEsImNyZWF0ZWRfYXQiOiIyMDIzLTAzLTE2VDA0OjQyOjAzLjAwMDAwMFoiLCJ1cGRhdGVkX2F0IjoiMjAyNC0wOS0wNFQxNDo0OTo1MS4wMDAwMDBaIiwidmlydHVhbF9wb29sX2FsaWFzIjoiTEVBTlggUEFZT1VUIiwidmlydHVhbF9wb29sX3RyYW5zYWN0aW9uX2Ftb3VudCI6IjEuMDAiLCJwYXlvdXRfcGF5bWVudF9hbW91bnQiOiIxLjAwIn0sInJlc3BvbnNlX2NvZGUiOjIxMDB9fSwicmVzcG9uc2VfY29kZSI6MjEwMH0.toZyryF0wiW1OxGzT_TmksvZV44t4jhoZbVNhR8i_gQ",
    "response_code": 2100
}
```

{% endcode %}

Sample callback response after JWT decode

```json
{
    "output": {
        "invoice_no": "17254613886HGPiuRu",
        "error_description": [],
        "bank_response": {
            "Success": true,
            "Result": {
                "OrgnFromAccountCurrency": "MYR",
                "OrgnThirdPartyAccountNo": "114085826509",
                "OrgnPaymentDescription": "66d8738c2c23f",
                "BizMsgID": "20240904OCBCMYKL010OCB89550491",
                "DisplayName": "John Doe",
                "BankReferenceNo": "20240904224948548338",
                "OrgnTransactionAmount": "13.0",
                "PaymentStatus": "ACSP",
                "OrgnThirdPartyBankBICCode": "MBBEMYKL",
                "OrgnCurrency": "MYR",
                "OrgnRecipientReference": "Test"
            }
        },
        "client_data": {
            "virtual_pool_reference": "PAYOUT-5C1E:224947-LEANX",
            "external_invoice_ref": "INVOICE1234",
            "recipient_reference": "Test"
        },
        "invoice_status_id": 2,
        "invoice_status": "SUCCESS",
        "amount": "13.00",
        "payout_service_id": 33,
        "client_callback_url": "https://api.leanx.io/api/v1/callback-url/callback-redirect?_uuid=799411e8-3a6c-48bf-bc45-9ed91bced62d",
        "client_transaction_details": null,
        "payout_payment": {
            "item": {
                "balance": "7.00",
                "virtual_pool_reference": "VA-2FDB5C-193420439550-PAYOUT",
                "record_status_id": 1,
                "virtual_pool_collection_type_id": 1,
                "created_at": "2023-03-16T04:42:03.000000Z",
                "updated_at": "2024-09-04T14:49:51.000000Z"
            },
            "response_code": 2100
        }
    },
    "response_code": 2100
}
```

{% hint style="info" %}
If you are integrating via your application, the **hash key will always be an identifier or a signature** to ensure that the callback was intended to be send to you. If the hash key is incorrect, it might be coming from unknown sources.
{% endhint %}


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