DexUtils API Rate Limits, Quotas, and Retry Handling

import requests
import time

API_KEY = "YOUR_API_KEY"
BASE_URL = "https://api.dexutils.io/v1"

def fetch_with_retry(path, params=None, max_retries=5):
    headers = {"Authorization": f"Bearer {API_KEY}"}
    url = f"{BASE_URL}{path}"

    for attempt in range(max_retries):
        response = requests.get(url, headers=headers, params=params)

        if response.status_code == 429:
            retry_after = int(response.headers.get("Retry-After", 60))
            wait = retry_after * (2 ** attempt)  # exponential backoff
            print(f"Rate limited. Retrying in {wait}s (attempt {attempt + 1})...")
            time.sleep(wait)
        else:
            response.raise_for_status()
            return response

    raise Exception("Max retries exceeded after repeated 429 responses")

const API_KEY = "YOUR_API_KEY";
const BASE_URL = "https://api.dexutils.io/v1";

async function fetchWithRetry(path, params = {}, maxRetries = 5) {
  const headers = { Authorization: `Bearer ${API_KEY}` };
  const query = new URLSearchParams(params).toString();
  const url = `${BASE_URL}${path}${query ? "?" + query : ""}`;

  for (let attempt = 0; attempt < maxRetries; attempt++) {
    const response = await fetch(url, { headers });

    if (response.status === 429) {
      const retryAfter = parseInt(response.headers.get("Retry-After") || "60");
      const wait = retryAfter * Math.pow(2, attempt); // exponential backoff
      console.log(`Rate limited. Retrying in ${wait}s (attempt ${attempt + 1})...`);
      await new Promise((resolve) => setTimeout(resolve, wait * 1000));
    } else {
      if (!response.ok) throw new Error(`HTTP ${response.status}`);
      return response;
    }
  }

  throw new Error("Max retries exceeded after repeated 429 responses");
}