![]() ![]() ![]() When you choose to make external network calls, you can improve latency by caching data in your function’s memory, leveraging the CloudFront cache, or bringing data geographically closer to best pattern to use depends on your scenario. Or, you can fetch data dynamically from an external endpoint by making a network call. For example, you can include external data directly in your deployment package, and then update it later as your data changes. ![]() In this article, I will guide you through common patterns and options for reading external data in functions. Server selection configuration is part of their code, which is updated when a configuration changes. In this talk, Disney shares how they use to select an origin from a server pool in a sticky way. Disney Streaming Services is responsible for developing and operating The Walt Disney Company’s direct-to-consumer video businesses globally.Their function uses a parameter file that it downloads from Amazon S3. In this article, DAZN explains how they used for A/B testing and geo-routing. DAZN is a subscription video streaming service dedicated to sports.TrueCar details in this article how they leverage to dynamically route requests, based on rules fetched from Amazon DynamoDB. TrueCar is a digital automotive marketplace that provides comprehensive pricing transparency about the price that people have paid for their cars.The function in the implementation makes external API calls to help analyze incoming requests. Datadome explains in this talk how they use to decide whether to allow or block an incoming request. Datadome is a cybersecurity solution for web and mobile applications that analyzes and manages non-human traffic in real time.In contrast, the following are some scenarios that leverage external data: In the documentation, you can find several examples of stateless logic like header manipulation, content localization, and cache key normalization. While customers often write stateless logic that is fully contained in code, there are some scenarios where it’s useful to change the behavior of a function based on external information. empowers our customers with a full programming language (Node.js) to implement advanced logic. Is a feature of Amazon CloudFront that allows developers to implement custom logic for manipulating HTTP request/response exchanges or generating responses on the fly with low latency. ![]()
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