This documentation is for WSO2 API Manager 2.1.0. View documentation for the latest release.

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Throttling allows you to limit the number of hits to an API during a given period of time, typically to protect your APIs from security attacks and your backend services from overuse, regulate traffic according to infrastructure limitations and to regulate usage for monetization. For information on different levels of throttling in WSO2 API Manager (WSO2 API-M), see Throttling tiers.


This tutorial uses the PhoneVerification API, which has one resource, GET and POST methods to access it and a throttling policy enforced. 

Before you begin, follow the Create and Publish an API to create and publish the PhoneVerification API and then the Subscribe to an API to subscribe to the API using the Bronze throttling tier.