At Assertible, we've taken a unique approach with a web-serviced based architecture that closely models real-world APIs and web apps. This has several advantages in how you can represent your tests, endpoints and more. We're excited to release a new feature made possible by this unique approach: configurable rate limiting for web services.
The rate limit setting lets you control how many requests per second will hit your web service. Many APIs and web apps have built-in request throttling to prevent rogue users from pounding the servers. When your setting up automated API tests and monitoring, it's convenient to be able to model this effectively, which is now supported through the rate limit setting.
How Rate Limit works
The Rate Limit setting represents the maximum number of requests per second that will hit your server. When your tests are run, like via a Schedule or Deployment, this rate limit will be used to throttle how fast the HTTP requests are sent to your service.
The default Rate Limit is
15 requests/s. This is generally a good
starting point for most services, but you
configure this setting
to your specific use-case.
Requests are throttled per run ID. In other words, if two schedules run at the same time, they will be throttled independently since they are in two separate run IDs.
The Rate Limit will be applied to any dynamic requests as well - for
example, setup steps
link checker assertions
will be throttled within a test run. One great side-effect of
configuring a Rate Limit is that it reduces flaky API tests and
Too many requests errors many HTTP services return.
Configuring Rate Limit for your web service
Rate Limit can be configured on the Settings tab of any web service, in the Service settings area:
The setting can be a number from 1 to 1000 and will control the
number of requests that will hit your web service. The default value
15 requests/s, which is a good middle-ground for most web
Set your Rate Limit to a number that works with your API and run your tests! You should notice with lower numbers, test runs take longer, and with higher numbers they're faster.
Learn more about the Rate limit setting in the docs.
We're excited to continue building more API testing and monitoring features, and with our service-based architecture there are many cool improvements on the horizon. This new feature is available today for all accounts. To get started, check out the documentation for web services.
:: Cody Reichert
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Assertible joins the OpenAPI initiative 05/09/2018