post https://example.client.domain.com/basepath/Authorization
The Auth API 2.0 webhook permits you to participate in authorization decisions. For this webhook there is only one verb: POST. Galileo sends information about the authorization request in the body of the HTTP request, in JSON. Your decision should be in the body of the HTTP response.
In the authorization information that Galileo sends, the response_code is the current response code to be returned to the merchant, unless you override it. Use the response_code field in the HTTP response body to override the authorization response code, as desired.
See the Authorization Controller API guide for more information.
Open the Recipes below to see webhook examples that you can use for testing.
{
"auth_type": "Auth",
"merchant": {
"merchant_id": "111111111111",
"acquirer_id": "33333",
"terminal_network": null,
"merchant_description": "APPLE.COM/BILL 866-712-7753 CA ",
"merchant_country": "840",
"terminal_id": "222222",
"merchant_state": "CA",
"merchant_postal_code": "95014"
},
"risk_code": "39",
"ecommerce": {
"raw_eci": "210",
"merchant_asserts_data_protection": true,
"is_ecommerce": true,
"merchant_asserts_authenticated": false,
"merchant_asserts_authentication_attempted": false,
"merchant_authentication_assertions_validated": null
},
"pin_entry_capability": "Other",
"advanced_auth_api_fields": null,
"service_processing_type": null,
"timestamp": "20250702:172327MST",
"mcc": 5818,
"avs_data": {
"zip": "999999999",
"address": "*****"
},
"original_id": 0,
"international": false,
"id": "obiFh9L8ioy4_rZB_AQ12A",
"eligible_for_balance_return": false,
"validation_results": {
"arqc": "N",
"cvv3": "N",
"pin": "N",
"avs_result": "Y",
"aav": "N",
"cvv1": "N",
"offline_pin": "N",
"cvv2": "N"
},
"auth_id": 5555555,
"account": {
"track_expiration_date": null,
"xid": 4444444,
"merchant_supplied_expiration_date": "2712",
"account_status": "N",
"expiration_date": "2712",
"prn": "999101661602",
"card_status": "N",
"pan": "3293",
"cad": 55555
},
"transaction": {
"transaction_initiator_code": "M101",
"cardholder_present": "N",
"recurring": "Y"
},
"network": "Mastercard",
"amounts": {
"cashback_amount": "0.0",
"local_currency_amount": "1.99",
"upcharge_amount": "0.0",
"billing_currency_amount": "1.99",
"trans_amount": "1.99",
"available_funds": "3.75",
"billing_currency": "840",
"currency": "840",
"amt_til_limit": "2500",
"local_currency": "840",
"exchange_rate": "61000000",
"fee_amount": "0.00"
},
"entry_type": "Card On File",
"response_code": "00",
"response_code_list": [],
"emv": {
"is_emv": false
},
"transaction_type": "Auth",
"risk_score": "1",
"version": "2.0",
"partial_supported": false,
"subnetwork": "Mastercard Banknet",
"mti": "0100",
"bai": null
}
{
"auth_type": "Auth",
"merchant": {
"merchant_id": "MMMMMMMMM",
"acquirer_id": "777777",
"terminal_network": null,
"merchant_description": "LYFT *XD RENTAL FEE SAN FRANCISCO CA ",
"merchant_country": "840",
"terminal_id": "ZZZZZZ",
"merchant_state": "CA",
"merchant_postal_code": "94104"
},
"risk_code": "43",
"ecommerce": {
"raw_eci": "210",
"merchant_asserts_data_protection": true,
"is_ecommerce": true,
"merchant_asserts_authenticated": false,
"merchant_asserts_authentication_attempted": false,
"merchant_authentication_assertions_validated": null
},
"pin_entry_capability": "Other",
"advanced_auth_api_fields": {
"7": "0703002327",
"12": "172327",
"13": "0702",
"48": {
"subfield 75": "01036510202430303651040243050200",
"subfield 33": "",
"subfield 71": "18C ",
"subfield 61": "00001",
"subfield 95": ""
},
"22": {
"subfield 2": "0"
},
"61": {
"subfield 8": "0",
"subfield 1": "1",
"subfield 3": "2",
"subfield 4": "5",
"subfield 5": "1",
"subfield 6": "1",
"subfield 7": "0",
"subfield 12": "00",
"subfield 10": "6"
},
"63": {
"subfield 2": "MAOMKH"
"
}
},
"service_processing_type": null,
"timestamp": "20250702:172327MST",
"mcc": 4121,
"avs_data": {
"zip": "22222",
"address": "*****"
},
"original_id": 0,
"international": false,
"id": "vDD2EvC0RUSwe_VRyzQbD0",
"eligible_for_balance_return": false,
"validation_results": {
"arqc": "N",
"cvv3": "N",
"pin": "N",
"avs_result": "Z",
"aav": "N",
"cvv1": "N",
"offline_pin": "N",
"cvv2": "N"
},
"auth_id": 22222222,
"account": {
"track_expiration_date": null,
"xid": 4444444,
"merchant_supplied_expiration_date": "3006",
"account_status": "N",
"expiration_date": "3006",
"prn": "999166760171",
"card_status": "N",
"pan": "0854",
"cad": 7777777
},
"transaction": {
"transaction_initiator_code": "C101",
"cardholder_present": "N",
"recurring": "N"
},
"network": "Mastercard",
"amounts": {
"cashback_amount": "0.0",
"local_currency_amount": "44.60",
"upcharge_amount": "0.0",
"billing_currency_amount": "44.60",
"trans_amount": "44.60",
"available_funds": "-52133.25",
"billing_currency": "840",
"currency": "840",
"amt_til_limit": "14934.07",
"local_currency": "840",
"exchange_rate": "61000000",
"fee_amount": "0.00"
},
"entry_type": "Card On File",
"response_code": "51",
"response_code_list": [
"51"
],
"emv": {
"is_emv": false
},
"transaction_type": "Auth",
"risk_score": "651",
"version": "2.0",
"partial_supported": false,
"subnetwork": "Mastercard Banknet",
"mti": "0100",
"bai": null
}