--- name: appfolio-rate-limits description: 'Handle AppFolio API rate limits with throttling and backoff. Trigger: "appfolio rate limit". ' allowed-tools: Read, Write, Edit, Bash(npm:*), Bash(curl:*), Grep version: 1.0.0 license: MIT author: Jeremy Longshore tags: - saas - property-management - appfolio - real-estate compatibility: Designed for Claude Code --- # AppFolio Rate Limits ## Overview AppFolio's Stack API enforces per-partner rate limits to protect shared property management infrastructure. High-volume operations like bulk tenant imports, rent-roll syncs, and work-order batch updates can quickly exhaust quotas. Property managers running nightly portfolio syncs across hundreds of units must throttle carefully, especially during month-end when lease renewals and payment processing spike concurrently. ## Rate Limit Reference | Endpoint | Limit | Window | Scope | |----------|-------|--------|-------| | Properties list/get | 120 req | 1 minute | Per partner key | | Tenant create/update | 30 req | 1 minute | Per partner key | | Work orders | 60 req | 1 minute | Per partner key | | Bulk data export | 5 req | 1 hour | Per partner key | | Webhooks registration | 10 req | 1 minute | Per partner key | ## Rate Limiter Implementation ```typescript class AppFolioRateLimiter { private tokens: number; private lastRefill: number; private readonly maxTokens: number; private readonly refillRate: number; // tokens per ms private queue: Array<{ resolve: () => void }> = []; constructor(maxPerMinute: number) { this.maxTokens = maxPerMinute; this.tokens = maxPerMinute; this.lastRefill = Date.now(); this.refillRate = maxPerMinute / 60_000; } async acquire(): Promise { 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.maxTokens, 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 limiter = new AppFolioRateLimiter(100); ``` ## Retry Strategy ```typescript async function appfolioRetry(fn: () => Promise, maxRetries = 4): Promise { for (let attempt = 0; attempt <= maxRetries; attempt++) { await limiter.acquire(); 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(`AppFolio API ${res.status}: ${await res.text()}`); } throw new Error("Max retries exceeded"); } ``` ## Batch Processing ```typescript async function batchSyncTenants(tenants: any[], batchSize = 25) { const results: any[] = []; for (let i = 0; i < tenants.length; i += batchSize) { const batch = tenants.slice(i, i + batchSize); const batchResults = await Promise.all( batch.map(t => appfolioRetry(() => fetch(`${BASE}/api/v1/tenants`, { method: "POST", headers, body: JSON.stringify(t), }) )) ); results.push(...batchResults); if (i + batchSize < tenants.length) await new Promise(r => setTimeout(r, 2000)); } return results; } ``` ## Error Handling | Issue | Cause | Fix | |-------|-------|-----| | 429 Too Many Requests | Exceeded partner rate limit | Backoff using Retry-After header | | 403 on bulk export | Hourly export cap reached | Queue exports with 15-min spacing | | Timeout on property list | Large portfolio (500+ units) | Paginate with `per_page=50` | | 409 Conflict on tenant update | Concurrent write to same tenant | Retry with fresh ETag | | 503 during maintenance | Scheduled nightly window (2-4 AM PT) | Skip requests, retry after window | ## Resources - [AppFolio Stack API](https://www.appfolio.com/stack/partners/api) ## Next Steps See `appfolio-performance-tuning`. --- Source attribution: jeremylongshore Original project: https://github.com/jeremylongshore/claude-code-plugins-plus-skills/blob/main/plugins/saas-packs/appfolio-pack/skills/appfolio-rate-limits/SKILL.md License: MIT License information: https://opensource.org/license/mit Original upstream instructions; downloaded from Mega AI Hub. ## Upstream license notice MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # Mega AI Hub resource metadata Creator / publisher: jeremylongshore Original project: https://github.com/jeremylongshore/claude-code-plugins-plus-skills/blob/main/plugins/saas-packs/appfolio-pack/skills/appfolio-rate-limits/SKILL.md Attribution basis: Source repository record Fields of work: Real Estate, Sales Roles: Business Development, Property Manager, Real Estate Agent Specialties: API Tools: Appfolio Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: decb626ad51ea12a9902c9a776448a53c9e44ee6db6f00d36224d9f66a908103