flyio-rate-limits

Handle Fly.io Machines API rate limits with backoff, concurrency control, and request batching for machine management operations. Trigger: "fly.io rate limit", "fly.io 429", "fly.io throttling", "machines API limit".

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Repository: jeremylongshore/claude-code-plugins-plus-skills
Last source activity: July 17, 2026 at 22:18
Detected SKILL.md language: English
Stars: 2,604
Forks: 378

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Retry-After

Endpoint	Limit	Window	Scope
Machine create/delete	10 req	1 minute	Per org
Machine start/stop	30 req	1 minute	Per org
Machine list/get	120 req	1 minute	Per org
App create/delete	5 req	1 minute	Per org
Volume operations	15 req	1 minute	Per org

class FlyRateLimiter {
  private tokens: number;
  private lastRefill: number;
  private readonly max: number;
  private readonly refillRate: number;
  private queue: Array<{ resolve: () => void }> = [];

  constructor(maxPerMinute: number) {
    this.max = maxPerMinute;
    this.tokens = maxPerMinute;
    this.lastRefill = Date.now();
    this.refillRate = maxPerMinute / 60_000;
  }

  async acquire(): Promise<void> {
    this.refill();
    if (this.tokens >= 1) { this.tokens -= 1; return; }
    return new Promise(resolve => this.queue.push({ resolve }));
  }

  private refill() {
    const now = Date.now();
    this.tokens = Math.min(this.max, this.tokens + (now - this.lastRefill) * this.refillRate);
    this.lastRefill = now;
    while (this.tokens >= 1 && this.queue.length) {
      this.tokens -= 1;
      this.queue.shift()!.resolve();
    }
  }
}

const writeLimiter = new FlyRateLimiter(8);  // leave headroom under 10/min
const readLimiter = new FlyRateLimiter(100);

async function flyRetry<T>(fn: () => Promise<Response>, maxRetries = 4): Promise<T> {
  for (let attempt = 0; attempt <= maxRetries; attempt++) {
    const res = await fn();
    if (res.ok) return res.json();
    if (res.status === 429) {
      const retryAfter = parseInt(res.headers.get("Retry-After") || "10", 10);
      const delay = retryAfter * 1000 + Math.random() * 2000;
      await new Promise(r => setTimeout(r, delay));
      continue;
    }
    if (res.status >= 500 && attempt < maxRetries) {
      await new Promise(r => setTimeout(r, Math.pow(2, attempt) * 1000));
      continue;
    }
    throw new Error(`Fly API ${res.status}: ${await res.text()}`);
  }
  throw new Error("Max retries exceeded");
}

async function rollingDeployMachines(appId: string, configs: any[], batchSize = 3) {
  const results: any[] = [];
  for (let i = 0; i < configs.length; i += batchSize) {
    const batch = configs.slice(i, i + batchSize);
    const batchResults = await Promise.all(
      batch.map(async cfg => {
        await writeLimiter.acquire();
        return flyRetry(() =>
          fetch(`https://api.machines.dev/v1/apps/${appId}/machines`, {
            method: "POST", headers, body: JSON.stringify(cfg),
          })
        );
      })
    );
    results.push(...batchResults);
    if (i + batchSize < configs.length) await new Promise(r => setTimeout(r, 10_000));
  }
  return results;
}

Issue	Cause	Fix
429 on machine create	Exceeded 10 writes/min org limit	Use Retry-After header, batch deploys
429 on fleet list	Monitoring polling too fast	Cache responses, poll every 30s max
Timeout on volume attach	Volume in another region	Verify region match before attach
503 during region outage	Specific edge region down	Fail over to secondary region
409 on machine update	Concurrent config change	Re-fetch machine state, retry with latest version

name	flyio-rate-limits
description	Handle Fly.io Machines API rate limits with backoff, concurrency control, and request batching for machine management operations. Trigger: "fly.io rate limit", "fly.io 429", "fly.io throttling", "machines API limit".
allowed-tools	Read, Write, Edit
version	1.6.0
license	MIT
author	Jeremy Longshore <jeremy@intentsolutions.io>
tags	["saas","edge-compute","flyio"]
compatibility	Designed for Claude Code

name	flyio-rate-limits
description	Handle Fly.io Machines API rate limits with backoff, concurrency control, and request batching for machine management operations. Trigger: "fly.io rate limit", "fly.io 429", "fly.io throttling", "machines API limit".
allowed-tools	Read, Write, Edit
version	1.6.0
license	MIT
author	Jeremy Longshore <jeremy@intentsolutions.io>
tags	["saas","edge-compute","flyio"]
compatibility	Designed for Claude Code

flyio-rate-limits

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