simulate-pi-callback.js•10.2 kB
/**
* Simulate payment institution callback scenarios for testing
* Payment institutions receive TRANSACTION_PROCESSED and TRANSACTION_FINALIZED callbacks
*/
/**
* Generate mock payment institution callback payload
* @param {string} transactionId - Transaction ID
* @param {string} callbackType - Callback type (TRANSACTION_PROCESSED, TRANSACTION_FINALIZED)
* @param {Object} options - Additional options
* @returns {Object} Mock callback payload
*/
export function generateMockPICallback(transactionId, callbackType = 'TRANSACTION_PROCESSED', options = {}) {
const {
amount = '57.00',
currency = 'EUR',
payerAmount = null,
payeeAmount = null,
payeeBIC = 'SBBICID1',
payeeAccount = 'M-1W-1account2',
payeeFriendlyName = 'payware',
payerBIC = 'SBBICID1',
payerAccount = 'payerAccount',
payerFriendlyName = 'Demo Financial Institution',
reasonL1 = '57',
reasonL2 = null,
timeToLive = 600,
initiatedBy = 'PEER',
transactionType = 'DEFAULT',
status = 'CONFIRMED',
statusMessage = null,
passbackParams = null
} = options;
// Calculate fee like Java implementation: |payerAmount - amount| or |payeeAmount - amount|
const transactionAmount = parseFloat(amount);
let fee = '0.60'; // Default fee
if (payerAmount !== null) {
fee = Math.abs(parseFloat(payerAmount) - transactionAmount).toFixed(2);
} else if (payeeAmount !== null) {
fee = Math.abs(parseFloat(payeeAmount) - transactionAmount).toFixed(2);
}
// Build payload based on callback type (matching Java implementation exactly)
if (callbackType === 'TRANSACTION_PROCESSED') {
return {
callbackType,
transactionId,
passbackParams,
amount,
fee,
currency,
payeeBIC,
payeeAccount,
payeeFriendlyName,
payerBIC,
payerAccount,
payerFriendlyName,
reasonL1,
...(reasonL2 && { reasonL2 }),
timeToLive,
transactionType,
initiatedBy
};
} else {
// TRANSACTION_FINALIZED
return {
callbackType,
transactionId,
passbackParams,
amount,
fee,
currency,
status,
...(statusMessage && { statusMessage }),
created: Date.now() - 300000, // Created 5 minutes ago (milliseconds)
finalized: Date.now()
};
}
}
/**
* Simulate callback delivery for payment institutions
* @param {string} callbackUrl - URL to send callback to
* @param {Object} payload - Callback payload
* @returns {Object} Simulation result
*/
export async function simulatePICallbackDelivery(callbackUrl, payload) {
if (!callbackUrl || !callbackUrl.startsWith('http')) {
return {
success: false,
error: 'Invalid callback URL provided'
};
}
// In a real implementation, this would actually send HTTP POST
// For simulation, we just return what would be sent
return {
success: true,
url: callbackUrl,
payload,
headers: {
'Content-Type': 'application/json',
'Authorization': 'Bearer mock-jwt-token-' + Date.now()
},
simulatedAt: new Date().toISOString(),
note: 'This is a simulation - no actual HTTP request was made. Real payware callbacks use JWT tokens in Authorization header.'
};
}
/**
* Payment Institution callback simulation tool implementation
*/
export const simulatePICallbackTool = {
name: "payware_operations_simulate_callback",
description: "Simulate payment institution callback scenarios for testing webhook handling. Payment institutions receive TRANSACTION_PROCESSED when merchant processes their transaction, and TRANSACTION_FINALIZED when transaction is completed.",
inputSchema: {
type: "object",
additionalProperties: false,
properties: {
transactionId: {
type: "string",
description: "Transaction ID to simulate callback for"
},
callbackType: {
type: "string",
enum: ["TRANSACTION_PROCESSED", "TRANSACTION_FINALIZED"],
description: "Type of callback to simulate",
default: "TRANSACTION_PROCESSED"
},
callbackUrl: {
type: "string",
description: "URL where callback would be sent (for simulation only)",
format: "uri"
},
amount: {
type: "string",
description: "Transaction amount (e.g., '57.00')",
default: "57.00"
},
currency: {
type: "string",
enum: ["EUR", "USD", "GBP"],
description: "Transaction currency",
default: "EUR"
},
fee: {
type: "string",
description: "Fee amount charged by payment institution (e.g., '0.60')",
default: "0.60"
},
payeeBIC: {
type: "string",
description: "Payee's BIC code",
default: "SBBICID1"
},
payeeAccount: {
type: "string",
description: "Payee account identifier",
default: "M-1W-1account2"
},
payeeFriendlyName: {
type: "string",
description: "Payee friendly name",
default: "payware"
},
payerBIC: {
type: "string",
description: "Payer's BIC code",
default: "SBBICID1"
},
payerAccount: {
type: "string",
description: "Payer account identifier",
default: "payerAccount"
},
payerFriendlyName: {
type: "string",
description: "Payer friendly name",
default: "Demo Financial Institution"
},
reasonL1: {
type: "string",
description: "Transaction reason line 1",
default: "57"
},
reasonL2: {
type: "string",
description: "Transaction reason line 2 (optional)"
},
timeToLive: {
type: "number",
description: "Remaining time to live in seconds",
default: 600
},
status: {
type: "string",
enum: ["CONFIRMED", "DECLINED", "FAILED", "CANCELLED"],
description: "Transaction status (only for TRANSACTION_FINALIZED callbacks)",
default: "CONFIRMED"
},
statusMessage: {
type: "string",
description: "Status message (only for TRANSACTION_FINALIZED callbacks)"
}
},
required: ["transactionId"]
},
async handler(args) {
const {
transactionId,
callbackType = 'TRANSACTION_PROCESSED',
callbackUrl,
amount = '57.00',
currency = 'EUR',
fee = '0.60',
payeeBIC = 'SBBICID1',
payeeAccount = 'M-1W-1account2',
payeeFriendlyName = 'payware',
payerBIC = 'SBBICID1',
payerAccount = 'payerAccount',
payerFriendlyName = 'Demo Financial Institution',
reasonL1 = '57',
reasonL2,
timeToLive = 600,
status = 'CONFIRMED',
statusMessage
} = args;
if (!transactionId) {
throw new Error("Transaction ID is required");
}
// Generate mock callback payload
const payload = generateMockPICallback(transactionId, callbackType, {
amount,
currency,
fee,
payeeBIC,
payeeAccount,
payeeFriendlyName,
payerBIC,
payerAccount,
payerFriendlyName,
reasonL1,
reasonL2,
timeToLive,
initiatedBy: 'PEER',
transactionType: 'DEFAULT',
status,
statusMessage
});
// Simulate callback delivery if URL provided
let deliveryResult = null;
if (callbackUrl) {
deliveryResult = await simulatePICallbackDelivery(callbackUrl, payload);
}
const callbackEmojis = {
'TRANSACTION_PROCESSED': '🔄',
'TRANSACTION_FINALIZED': '✅'
};
const statusEmojis = {
'CONFIRMED': '✅',
'DECLINED': '❌',
'FAILED': '💥',
'CANCELLED': '🚫'
};
const callbackEmoji = callbackEmojis[callbackType] || '📨';
const statusEmoji = statusEmojis[status] || '❓';
return {
content: [{
type: "text",
text: `${callbackEmoji} **Payment Institution Callback Simulation Complete**
**Transaction:** ${transactionId}
**Callback Type:** ${callbackType}
${callbackType === 'TRANSACTION_FINALIZED' ? `**Status:** ${statusEmoji} ${status}` : ''}
**Mock Callback Payload:**
\`\`\`json
${JSON.stringify(payload, null, 2)}
\`\`\`
${deliveryResult ? `
**Callback Delivery Simulation:**
${deliveryResult.success ? '✅ Callback would be delivered successfully' : '❌ Callback delivery would fail'}
**Delivery Details:**
- URL: ${deliveryResult.url || 'N/A'}
- Headers: ${JSON.stringify(deliveryResult.headers || {}, null, 2)}
- Simulated At: ${deliveryResult.simulatedAt || 'N/A'}
**Note:** ${deliveryResult.note || 'No actual HTTP request was made'}
` : '**No callback URL provided** - only payload generated'}
**Payment Institution Callback Types:**
- 🔄 **TRANSACTION_PROCESSED**: Merchant has processed your transaction (ready for finalization)
- ✅ **TRANSACTION_FINALIZED**: Transaction completed with final status
**Transaction Flow:**
1. Payment Institution creates transaction as SRC (payer) or DST (payee)
2. Transaction can be processed by merchant OR payment institution → **TRANSACTION_PROCESSED** callback to PI
3. Transaction can be finalized ONLY by payment institution → **TRANSACTION_FINALIZED** callback to PI
4. Transaction can be cancelled ONLY by its issuer (creator)
**Integration Testing:**
1. Use this payload to test your payment institution callback handler
2. Verify handling of both TRANSACTION_PROCESSED and TRANSACTION_FINALIZED
3. Test different status scenarios for finalized transactions
4. Ensure proper BIC and account information processing
**Next Steps:**
1. Implement callback endpoint to receive this payload structure
2. Test with both callback types
3. Add signature verification in production
4. Set up proper error handling and retry logic`
}]
};
}
};