Batch Payments
Process multiple payment requests or payouts efficiently in a single blockchain transaction
Overview
Batch payments enable you to process multiple payment requests efficiently in a single blockchain transaction, reducing gas costs and simplifying multi-recipient workflows.
Two Types of Batch Payments:
Batch Pay Invoices
Process previously created requests using their request IDs and receive payment calldata that can be executed on-chain to pay multiple requests simultaneously.
Batch Payouts
Submit new payment requests that are immediately processed, creating requests and returning payment calldata in a single API call for instant multi-recipient payments.
Key Benefits
Gas Efficiency: Significantly reduce transaction costs by batching multiple payments
Simplified UX: Process up to 200 payments in a single transaction
Mixed Payment Types: Support ERC20, native tokens, and conversion payments in the same batch
Atomic Execution: All payments succeed or fail together, ensuring consistency
Single Network Limitation: All requests in a batch must be on the same blockchain network. Need multi-network batch payments? Book a call to discuss this feature.
Batch Processing Limits
The theoretical limit for batch payments is 100-200 payments per transaction, depending on:
Payment complexity (ERC20 vs native tokens vs conversions)
Available block gas limit on the target network
Smart contract computational requirements
For optimal performance, we recommend starting with smaller batches (10-50 payments) and scaling based on your network conditions.
Batch Payment Workflow
Endpoints
Pays multiple payment requests in one transaction by either creating new requests or using existing request IDs. All requests must be on the same network. Supports mixed ERC20, Native, and conversion requests.
API key for authentication
The request IDs of the existing requests to be paid. Requests must be on the same network. Either requests or requestIds must be provided, but not both.
The wallet address of the payer, user to check if approval is needed or not.
POST /v2/payouts/batch HTTP/1.1
Host: api.request.network
x-api-key: text
Content-Type: application/json
Accept: */*
Content-Length: 747
{
"requests": [
{
"payee": "0x6923831ACf5c327260D7ac7C9DfF5b1c3cB3C7D7",
"amount": "2",
"invoiceCurrency": "FAU-sepolia",
"paymentCurrency": "FAU-sepolia"
},
{
"payee": "0x6923831ACf5c327260D7ac7C9DfF5b1c3cB3C7D7",
"amount": "2",
"invoiceCurrency": "fUSDC-sepolia",
"paymentCurrency": "fUSDC-sepolia"
},
{
"payee": "0xb07D2398d2004378cad234DA0EF14f1c94A530e4",
"amount": "10",
"invoiceCurrency": "USD",
"paymentCurrency": "FAU-sepolia"
},
{
"payee": "0x6923831ACf5c327260D7ac7C9DfF5b1c3cB3C7D7",
"amount": "0.00001",
"invoiceCurrency": "ETH-sepolia-sepolia",
"paymentCurrency": "ETH-sepolia-sepolia"
},
{
"payee": "0x6923831ACf5c327260D7ac7C9DfF5b1c3cB3C7D7",
"amount": "10",
"invoiceCurrency": "USD",
"paymentCurrency": "ETH-sepolia-sepolia"
}
],
"payer": "0x2e2E5C79F571ef1658d4C2d3684a1FE97DD30570"
}{
"ERC20ApprovalTransactions": [
{
"data": "0x095ea7b3...",
"to": "0x370DE27fdb7D1Ff1e1BaA7D11c5820a324Cf623C",
"value": 0
}
],
"batchPaymentTransaction": {
"data": "0x92cddb91...",
"to": "0x67818703c92580c0e106e401F253E8A410A66f8B",
"value": {
"type": "BigNumber",
"hex": "0x0d83b3d1afc58b"
}
}
}Implementation Examples
The following examples demonstrate how to implement batch payment calldata execution in your application. Note: The API returns unsigned transaction calldata - your application must handle sending these transactions to the blockchain.
Batch Pay Invoices Example
import { ethers } from 'ethers';
// Get unsigned calldata to pay existing requests by their IDs
const batchPayResponse = await fetch('https://api.request.network/v2/payouts/batch', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'x-api-key': 'your-api-key',
'x-platform-id': 'your-platform-id'
},
body: JSON.stringify({
requestIds: [
"01e273ecc29d4b526df3a0f1f05ffc59372af8752c2b678096e49ac270416a7cdb",
"02f384fdd39e5c627e04b1f2e6fd60593783b8863c3c789197f5bd381527b8ecd"
],
payer: "0x2e2E5C79F571ef1658d4C2d3684a1FE97DD30570"
})
});
const { batchPaymentTransaction, ERC20ApprovalTransactions } = await batchPayResponse.json();
// Your app must implement sending these transactions to the blockchain
const provider = new ethers.providers.Web3Provider(window.ethereum);
const signer = provider.getSigner();
// 1. Handle ERC20 approvals if needed
for (const approval of ERC20ApprovalTransactions) {
const tx = await signer.sendTransaction(approval);
await tx.wait();
}
// 2. Send the batch payment transaction
const batchTx = await signer.sendTransaction(batchPaymentTransaction);
await batchTx.wait();Batch Payouts Example
// Create new requests and process them immediately
const batchPayResponse = await fetch('https://api.request.network/v2/payouts/batch', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'x-api-key': 'your-api-key',
'x-platform-id': 'your-platform-id'
},
body: JSON.stringify({
requests: [
{
payee: "0x6923831ACf5c327260D7ac7C9DfF5b1c3cB3C7D7",
amount: "10",
invoiceCurrency: "USD",
paymentCurrency: "USDC-sepolia"
},
{
payee: "0xb07D2398d2004378cad234DA0EF14f1c94A530e4",
amount: "25.50",
invoiceCurrency: "EUR",
paymentCurrency: "DAI-sepolia"
}
],
payer: "0x2e2E5C79F571ef1658d4C2d3684a1FE97DD30570"
})
});
const { batchPaymentTransaction, ERC20ApprovalTransactions } = await batchPayResponse.json();
// Your app must implement the blockchain transaction execution
// (same pattern as Batch Pay Invoices example above)Supported Payment Types
Batch payments support mixing different payment types in a single transaction:
ERC20 Token Payments: Standard token transfers
Native Token Payments: ETH, MATIC, etc.
Conversion Payments: Requests denominated in one currency but paid in another (e.g., USD invoices paid with USDC)
Key Implementation Notes
Your Responsibility
API Call: Your application calls the Request Network API to get transaction data
Blockchain Execution: Your application executes the returned transaction data on the blockchain
Error Handling: Your application handles transaction failures and retries
Best Practices
Validate Addresses: Always validate recipient addresses before submitting batch payments
Test on Testnets: Start with small batches on test networks before production deployment
Handle Failures Gracefully: Implement proper error handling for transaction failures
Gas Estimation: Consider gas costs when determining optimal batch sizes
User Experience: Provide clear progress indicators for multi-step approval processes
Error Handling
Common error scenarios and their solutions:
Network Mismatch: Ensure all requests use the same blockchain network
Insufficient Funds: Verify payer has sufficient balance for all payments plus gas
Invalid Addresses: Validate all payee addresses before batch submission
Gas Limit Exceeded: Reduce batch size if hitting network gas limits
Demo Application
See the batch payment feature in action in our EasyInvoice demo application:
EasyInvoice Batch Pay Invoices
EasyInvoice: Batch Payouts
For detailed information on all available endpoints and their parameters, please refer to the full Request Network API Reference.
For more implementation details, explore the EasyInvoice source code.
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