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Rate Limiting - SLA Based Policy
- 1. APPLY RATE LIMITING SLA POLICY WITH MULESOFT API GATEWAY Vince Jason Soliza
- 2. Pre-requisites • API in Mulesoft API Gateway – e.g. http://www.slideshare.net/VinceSoliza/proxy-existing-soap-web-service
- 3. Apply Rate Limiting – SLA Based Policy in API Manager This presentation will show how to apply Rate Limiting – SLA Based Policy in API Gateway using Anypoint Platform for APIs
- 4. Run in Anypoint Studio • Run the api application in anypoint studio
- 5. Apply Rate Limiting – SLA Based Policy • Login to anypoint platform and open the API Manager where we want to apply the policy • Click the Policies tab in the bottom part of the API Manager
- 6. Apply Rate Limiting – SLA Based Policy • We can view the list of applied and currently available policies within the API. Currently we have no applied policies. • Look for the Rate Limiting – SLA Based policy then click Apply
- 7. Create SLA • If there’s no SLA tiers defined in the API, a prompt occur with a message saying SLA has to be created first before applying the policy. It contains the link where to create SLA in the API Manager. Alternately there’s a tab where SLAs can be defined. • Click add SLA tier. The SLA example in the right has a limit of 10 requests/second. The API access requests for this SLA will be granted without the need of approval.
- 8. Create SLA • We have created 3 SLA tiers, each has different rate limits. Request for access in Silver and Gold SLAs requires approval. • Now we have SLAs, let’s proceed in creating applications. On the API Manager main page. Click Create Portal, We doesn’t need to edit the portal contents at the moment. • Click live portal in the upper right corner. In the live portal, click request API access also in the upper right. • Add new application.
- 9. Create Application • Now let’s match application with SLA and click Request for API access. • The request will be automatically approved as configured in the SLA. • Applications are assigned with cliend_id & client_secret this is used to identify the application doing the certain Request. • Proceed to applying the Rate Limiting – SLA Based Policy. • Click apply, the form in the right will be shown. • Extracting client_id & client_secret from the request is configured with MEL expression in this form .
- 10. Grant API access requests • Silver and Gold applications are still pending for approval, the API owner can approve the request.
- 11. Test the Policy • Open the application details listed in Developer Portal. Get the client_id & client_secret. • Open SOAPUI and make request for each applications having their unique client_id and client_secret. • See the rate limit response properties, it coincides with the specified limit of the application’s SLA tier.
- 12. Summary • This is how to define SLA tiers for your API version in the Anypoint Platform for APIs. • To enforce SLA tiers, you need to apply a rate- limiting or throttling policy that is SLA-based. • SLA based policies require all applications to register for access to a specific tier, passing client credentials is required to identify the application doing the requests. • The additional response headers are used to inform users about the SLA restrictions and the remaining spare capacity that the SLA allows.
- 13. QUESTIONS? Please leave a comment
Editor's Notes
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- Give a brief overview of the presentation. Describe the major focus of the presentation and why it is important. Introduce each of the major topics. To provide a road map for the audience, you can repeat this Overview slide throughout the presentation, highlighting the particular topic you will discuss next.
- Give a brief overview of the presentation. Describe the major focus of the presentation and why it is important. Introduce each of the major topics. To provide a road map for the audience, you can repeat this Overview slide throughout the presentation, highlighting the particular topic you will discuss next.
- Give a brief overview of the presentation. Describe the major focus of the presentation and why it is important. Introduce each of the major topics. To provide a road map for the audience, you can repeat this Overview slide throughout the presentation, highlighting the particular topic you will discuss next.
- Give a brief overview of the presentation. Describe the major focus of the presentation and why it is important. Introduce each of the major topics. To provide a road map for the audience, you can repeat this Overview slide throughout the presentation, highlighting the particular topic you will discuss next.
- Give a brief overview of the presentation. Describe the major focus of the presentation and why it is important. Introduce each of the major topics. To provide a road map for the audience, you can repeat this Overview slide throughout the presentation, highlighting the particular topic you will discuss next.
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- Microsoft Confidential