Product overview

<p>API Gateway is a managed service for developers, which is simple and fast at low cost and with low risk. API Gateway provides API lifecycle management services, including API publishing, management, maintenance, and monetization. You can use API Gateway to share functions and data with your partners and third-party developers. API Gateway protects exposure of functions and service interconnection in terms of security, routing, traffic management, and monitoring.</p>

Product advantage

<p><strong>Unified authorization</strong></p> <p>&bull; The business system doesn&#39;t need its own authorization system. You only need to focus on your business.</p> <p><strong>Security isolation</strong></p> <p>&bull; The business system can interact with external services without access to the internet. You just open it to API Gateway in the intranet without security concerns as the API Gateway has strict access management.</p> <p><strong>Traffic baffle</strong></p> <p>&bull; With precise traffic management, the API Gateway protect the business system from external data storms.</p> <p><strong>API management</strong></p> <p>&bull; After defining an API request, API Gateway provides API documentation, SDKs, and API version management to reduce the daily maintenance costs.</p> <p><strong>Large scale and high performance</strong></p> <p>&bull; High scalability: API Gateway adopts the distributed deployments to enable huge API access;</p> <p>High availability: API Gateway ensures low latency and provides efficient gateway functions to your backend service.</p>

Noun explanation

<p>Before using API Gateway, we recommend that you familiarize yourself with the following terms.</p> <table border="1" cellpadding="0" cellspacing="1"> <thead> <tr> <td> <p><strong>Term</strong></p> </td> <td> <p><strong>Explanation</strong></p> </td> </tr> </thead> <tbody> <tr> <td> <p>App</p> </td> <td> <p>A user needs to create an app as the identity to call an API.</p> </td> </tr> <tr> <td> <p>AppId, AppSecret</p> </td> <td> <p>Each app has a pair of AppId (to identify apps) and AppSecret (for signature information).</p> </td> </tr> <tr> <td> <p>Encrypted signature</p> </td> <td> <p>An API request carries secure signature information, based on which API Gateway verifies the requester&rsquo;s identity.</p> </td> </tr> <tr> <td> <p>Authorization</p> </td> <td> <p>The API service provider grants an app permission to call an API. Only authorized apps can call APIs.</p> </td> </tr> <tr> <td> <p>API group</p> </td> <td> <p>The API service provider manages APIs through the group. Before creating an API, you first must create a group.</p> </td> </tr> <tr> <td> <p>Signature key</p> </td> <td> <p>The API service provider can create a signature key and bind it to the API. When sending a request to the service provider&rsquo;s backend, the gateway carries the signature information for backend security verification.</p> </td> </tr> <tr> <td> <p>Throttling</p> </td> <td> <p>The API service provider manages traffic of API, users, and apps by second, minute, hour, and day.</p> </td> </tr> </tbody> </table>
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