startBSCPayment

🧠 Overview

The startBSCPayment mutation begins monitoring a previously created transaction (via payment) on the BSC (BEP20) network. It generates a temporary wallet, waits for a USDT deposit, and automatically forwards the funds to your designated custodian wallet.

⏱️ Monitoring runs for 15 minutes. If no payment is received within that time, the transaction expires.

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🔗 Endpoint

URL: https://argonpay.onrender.com/graphql Method: POST Content-Type: application/json

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🧾 Mutation Structure

mutation StartBSCPayment($transactionId: String!, $network: String!) {
  startBSCPayment(transactionId: $transactionId, network: $network) {
    code
    message
    transaction {
      transactionId
      amount
      amountInToken
      network
      payAddress
      recipientAddress
      status
      adminTransferred
    }
  }
}

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📥 Parameters

Name	Type	Required	Description
transactionId	String	✅	Transaction ID from the payment mutation
network	String	✅	Must be "bep20" (currently the only supported)

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✅ Successful Response

{
  "data": {
    "startBSCPayment": {
      "code": 200,
      "message": "BEP20 payment started. Monitoring deposit...",
      "transaction": {
        "transactionId": "10045",
        "amount": 12.5,
        "amountInToken": 12.5,
        "network": "bep20",
        "payAddress": "0xTempWallet",
        "recipientAddress": "0xCustodianWallet",
        "status": "started",
        "adminTransferred": false
      }
    }
  }
}

---

🚫 Error Codes

Code	Description
200	Monitoring started
400	Only BEP20 network is supported
401	Invalid API key or access denied
404	Transaction not found, already processed, or no custodian
500	Internal server error

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🔄 How It Works (Behind the Scenes)

1. A unique wallet is generated per transaction.

2. System checks for incoming USDT (BEP20) every minute.

3. Once the deposit equals or exceeds the required amount:

   • Gas is sent to the wallet for forwarding funds from the BSCPayAddress.

   • The full USDT balance is transferred to your custodian wallet.

   • Remaining BNB (gas token) is refunded back to the BSCPayAddress (if possible).

4. If 15 minutes pass with no deposit, the transaction expires.

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🧪 Code

Python

import requests

url = "https://argonpay.onrender.com/graphql"
headers = {"Content-Type": "application/json"}

query = """
mutation StartBSCPayment($transactionId: String!, $network: String!) {
  startBSCPayment(transactionId: $transactionId, network: $network) {
    code
    message
    transaction {
      transactionId
      amount
      amountInToken
      network
      payAddress
      recipientAddress
      status
      adminTransferred
    }
  }
}
"""

variables = {
  "transactionId": "10045",
  "network": "bep20"
}

response = requests.post(url, json={"query": query, "variables": variables}, headers=headers)
print(response.json())

---

JavaScript

const fetch = require("node-fetch");

const query = `
mutation StartBSCPayment($transactionId: String!, $network: String!) {
  startBSCPayment(transactionId: $transactionId, network: $network) {
    code
    message
    transaction {
      transactionId
      amount
      amountInToken
      network
      payAddress
      recipientAddress
      status
      adminTransferred
    }
  }
}`;

const variables = {
  transactionId: "10045",
  network: "bep20"
};

fetch("https://argonpay.onrender.com/graphql", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({ query, variables })
})
.then(res => res.json())
.then(data => console.log(data));