Query USDT address balance in batches

To facilitate efficient batch queries, prepare a JSON payload with an array of USDT addresses and sign the request using HMAC-SHA256 to authenticate the API call.

Feb 01, 2025 at 07:00 pm

Query USDT Address Balance in Batches: A Comprehensive Guide

Key Points:

• Step 1: Obtain API Key and Secret Key
• Step 2: Prepare Batch Request Payload
• Step 3: Sign the Batch Request
• Step 4: Make the API Request
• Step 5: Parse and Process Response

Step 1: Obtain API Key and Secret Key

To query USDT address balances in batches, you must first obtain an API key and secret key from the exchange or platform you are using. These credentials provide authorization and access to the API endpoints.

Step 2: Prepare Batch Request Payload

The batch request payload is a JSON object containing an array of query requests. Each query request includes the USDT address to check:

{
  "requests": [
    {
      "address": "0x1234567890abcdef1234567890abcdef12345678"
    },
    // Additional query requests...
  ]
}

Step 3: Sign the Batch Request

To protect against unauthorized requests, you must sign the batch request using the secret key. Use the HMAC-SHA256 algorithm to generate the signature:

signature = HMAC-SHA256(secret_key, request_payload + timestamp)

Add the timestamp (milliseconds since Epoch) and signature to the request headers:

timestamp: 1654831619872
signature: 0x1234567890abcdef1234567890abcdef12345678

Step 4: Make the API Request

Send a POST request to the appropriate API endpoint, typically "/v1/batch/balance".

Example request:

POST /v1/batch/balance HTTP/1.1
Host: api.example.com
Content-Type: application/json
Timestamp: 1654831619872
Signature: 0x1234567890abcdef1234567890abcdef12345678

{
  "requests": [
    {
      "address": "0x1234567890abcdef1234567890abcdef12345678"
    },
    // Additional query requests...
  ]
}

Step 5: Parse and Process Response

The response from the API is also a JSON object. It includes the status of each query request and the corresponding balance (if successful):

{
  "responses": [
    {
      "address": "0x1234567890abcdef1234567890abcdef12345678",
      "balance": "1000000000000000000",
      "status": "success"
    },
    // Additional response objects...
  ]
}

Successfully processed responses can be used to update your records or display the latest USDT balances.

FAQs

Q: What are the rate limits for batch USDT balance queries?

A: Rate limits will vary depending on the exchange or platform you are using. Consult the API documentation for specific rate limits.

Q: Is it possible to query balances for other tokens or coins in a single batch request?

A: Yes, some exchanges allow you to query balances for multiple tokens or coins within the same batch request.

Q: How can I handle failed query requests?

A: Failed query requests can be due to incorrect addresses or insufficient permissions. Review the error messages in the response and correct any issues before resubmitting the request.

Q: Can I automate the process of querying USDT balances in batches?

A: Yes, you can use scripts or frameworks (e.g., Python, Node.js) to automate the entire process, including generating the request, signing, and parsing the response.

Q: Is it safe to share my API key and secret key with third parties?

A: No, your API key and secret key should be kept confidential. Sharing them could compromise your account security.