API Rate Limiting

Rate limiting is a technique primarily used in APIs to control the number of requests or API calls a client can make to the server within a given span of time. This method of restricting the API calls is achieved by setting a threshold limit on the number of requests that can be processed over a specified time frame, for example, per second, per minute, or hour.

Key Benefits

Prevents abuse: Protects against malicious users and bots overwhelming the server
Maintains performance: Ensures consistent API responsiveness for all users
Resource management: Prevents server overload and service outages

Understanding TPS

Transactions per Second (TPS) measures how many requests an API can handle per second. This metric helps:

Determine system capacity and performance limits
Predict concurrent user handling capabilities
Establish baselines for peak traffic testing

Best Practices for Handling Rate Limits

Know your limits: Understand the API's rate limiting policies and account-specific rules
Monitor usage: Track requests made and remaining quota to avoid unexpected limits
Implement backoff: Use exponential backoff when approaching rate limits
Batch requests: Combine multiple operations into single API calls when possible
Prioritize critical requests: Focus on essential API calls during high-traffic periods
Build in throttling: Limit outgoing request rates proactively
Plan for degradation: Design applications to function at reduced capacity when limits are reached
Test thoroughly: Simulate high-volume scenarios during development
Stay updated: Monitor API provider announcements for policy changes
Monitor API health: Use tools to track response times and adjust request rates accordingly

Intersoft Rate Limiting Policy

Intersoft enforces limits on API calls based on subscription settings, specifically for the CreateShipment API.

Requests per 10 seconds	TPS	Account Level	Estimated Volume (1 hour/day, 20 days/month
10	1	Base product account level	72k requests

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Note
Some carriers may have additional rate limits beyond Intersoft's policy.

Frequently asked questions (FAQs)

What do I need to do if I need a higher rate limit?

The rate limit mentioned in the preceding table is Intersoft specific. Some carriers may have their own rate limits and additional carrier limitations. If you need a higher rate limit than the our existing one, please reach out to our customers solutions team.

How do I choose the right API rate limiting solution for my needs?

To choose the right API rate limiting solution for your needs, you should consider factors such as the number of API calls you need to support, the level of security you require, and your budget.

How much does a higher API TPS solution cost?

The cost of a higher API TPS solution varies depending on the the number of API calls you need to support, and the level of support you require. However, as a general guideline, it is recommended to reach out to our sales team and discuss your requirements.

How can I get started with an API rate limiting solution?

To get started with an API rate limiting solution, you can contact our customer solutions team to discuss your specific needs and requirements. We will help you choose the right solution and provide you with the necessary support to get started.