API Manager Components
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The WSO2 API Manager comprises the following three main components:
API Publisher
Provides an end-user, collaborative Web interface for API providers to publish APIs, share documentation, provision API keys, and gather feedback on API features, quality and usage. The API Publisher is powered by WSO2 Jaggery, WSO2 Governance Registry and WSO2 Identity Server products.
For more information on API Publisher and its functionality, refer to section API Publisher.
API Store
Provides an end-user, collaborative Web interface for consumers to self-register, discover API functionality, subscribe to APIs, evaluate them and interact with API publishers. The API Store is powered by WSO2 Jaggery, WSO2 Governance Registry and WSO2 Identity Server products.
For more information on the API Store and its functionality, refer to section API Store.
API Gateway
A runtime, back-end component developed using the WSO2 ESB, which is proven for its performance capability. API Gateway secures, protects, manages, and scales API calls. The API gateway is a simple API proxy which intercepts API requests and applies policies such as throttling and security checks. It is also instrumental in gathering API usage statistics. The API Gateway is accessible through the URL: https://localhost:9443/carbon once the API Manager server is up and running.
A monitoring and statistics component can be easily integrated to the API Manager without an additional configuration effort. This monitoring component integrates with the WSO2 Business Activity Monitor, which can be deployed separately to analyze events generated by the API manager. For more information, refer to section Monitoring and Statistics.
The following diagram depicts the collaboration of these three main components with an easily integrable 'monitoring and statistics' component.
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