Node.js servers need to process a large number of requests concurrently as the scale grows. A Node.js micro service which receives an API request needs to do multiple actions, like parsing JWTs, use caching, work with the databases and more. But as systems need to parse millions of requests per second, the scale and performance becomes crucial.In this talk, Tamar will show strategies to improve your REST API performance - starting from new Node.js frameworks that can work faster, better parsing of request parts, efficient work with caching and DB , better parallelism and more strategies. The talk will include demos, benchmarks and profiling of code to see the improvements. At the end of this talk, developers will have practical knowledge on how to improve API performance in various Node.js platforms.