Unfortunately, there is a lot of misinformation coupled with several misconceptions about REST. 

REST is an acronym for Representational State Transfer. Put simply, it suggests that clients use representations to transfer between applications state. REST is an architectural style presented by Roy Fielding in 2000 in his dissertation. 

REST has its guiding priciples and constraints that must be followed for an interface to be 

REST helps build scalable and maintainable web applications or APIs by introducing a number of constraints, which must be satisfied in order to call an application truly 

This is the most crucial constraint of this architectural style. Roy Fielding, the creator himself referred to this as the central feature of REST. It applies the 

, to the components interface to simplify the overall system architecture and improve the apparentness of the interactions.

REST !== REST

JavaScript does not wait for anybody! Unless you say the magic words! 

Async functions can contain zero or more 

expressions. Await expressions make promise-returning functions behave as though they're synchronous by suspending execution until the returned promise is fulfilled or rejected. The resolved value of the promise is treated as the return value of the await expression. The use of async and await enables the use of ordinary try / catch blocks around asynchronous code. The async and await keywords enable asynchronous, promise-based behavior to be written in a cleaner style, avoiding the need to explicitly configure promise chains.

The following example in NextJS shows how to fetch data at request-time and pre-render the result.

Web applications with Sanity CMS

This article assumes that you have a basic knowledge of Node.js and TypeScript. You also need to have a recent version of Node.js and npm installed on your computer.

Running this on the command line will give us a package.json file. The 

instructs it to say yes to the default settings. 

is a strongly typed programming language that builds on JavaScript. Assuming you already have experience with JavaScript, right out of the bat, the advantages of TypeScript are type errors getting detected at build time, also aiding your editor to catch errors early. It adds additional syntax and is essentially a superset of JavaScript. It can run anywhere where javascript can run because any TypeScript code converts to JavaScript anyway. Making it run on a browser, Node, or in apps.

TypeScript offers all of JavaScript’s features, with the addition of TypeScript's type system. It will generate types for you in a lot of cases. 

 Visual Studio Code uses TypeScript under the hood to make it easier to work with JavaScript.

It is best advised to install TypeScript as a project-specific dependency. It makes sure to use the same version of the language regardless of the machine running the code. 

This package contains type definitions for Node.js.

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