We are about to conclude another exciting chapter that dealt with unique, high-productive, lightweight, developer friendly, quick-time-to-market, highly-scalable frameworks from three major programming languages—Java, Go (Golang), and Python. You might have observed that this chapter covered the most popular frameworks and their core functionality and touched on a few noteworthy features along the way. This chapter gave readers a few ideas about the frameworks' advantages and disadvantages. We discussed Spring-Boot, Light 4j, Spark Framework, Dropwizard, Gin-gonic, Revel, Django, and Flask. It's evident that there are several excellent frameworks you can use to jump-start your RESTful API development using your programming language of choice. But one chapter, and only a few pages of information, doesn't begin to cover the greatness of these frameworks and what they bring to the table. We hope this chapter gave you a fair idea of the popular frameworks so that you can kick-start not only your prototyping but also production-grade RESTful applications. In the next chapter, we'll explore best practices for migrating legacy applications to capable microservices.