![]() Open Terminal and enter the following commands: Well, that’s because you’re going to create it from scratch, from the command line.Īs part of Kitura 2.0, The team has created a command line interface for Kitura that streamlines generating a similar starter project, without requiring you to write any code yourself! You can try this out (after completing this tutorial, of course) by entering the following commands in Terminal: You didn’t download a starter project for this tutorial yet. The API itself doesn’t store states, but it does query and update the database to fetch, store and modify objects’ states. Just because the API is stateless doesn’t mean it isn’t allowed to store or modify objects. Once the request is fulfilled, the state of the API and its routes should be unchanged and able to handle the next request. ![]() In this example, you can think of the API as the orchestrator, commanding data to and from your ecosystem. If an API is RESTful, then it must also be stateless. This results in the following interaction between the API and database: Sends the JSON response back to the requesting client.Retrieves the acronyms from the database.The /acronyms route then does the following: If it finds one, it executes the associated route’s code. The router checks all available routes, which are simply publicly accessible endpoints, to determine if there is a GET route ending in /acronyms. The API receives your request and uses a router to decide how to handle it. You’ll only be concerned with two back end components in this Kitura tutorial: the API and database.įor example, if you want to populate a table view with a list of acronyms and their meanings, your client app sends a GET request to the backend. ![]() Non-unique URLs represent actions, which are combined with RESTful verbs like GET to fetch objects, POST to insert, DELETE to remove and PUT to update objects.īackend development often involves many components working together. In RESTful apps, each unique URL represents an object. REST is an acronym for Representational State Transfer. They modeled Kitura after Express.js, the de-facto framework for creating RESTful APIs using Node.js. IBM created Kitura as an open-source framework in 2015, shortly after Apple open-sourced Swift. Note: To stop CouchDB, enter brew services stop couchdb.īefore diving into this tutorial, you’ll first need to understand a little about Kitura and REST. To confirm that CouchDB is installed and running, open a web browser and navigate to You should see something like this: Once it’s installed, enter this command to start CouchDB: ![]() Next, enter this command to install CouchDB: You should see Installation Successful once it completes. If you don’t have Homebrew installed already, open Terminal and enter this command:Įnter your password if prompted. Homebrew, a popular package manager for macOS, is the easiest way to install CouchDB. The -rm in the docker run command will remove the container’s files from your system. When you’ve finished this tutorial, enter the following command to stop your container: If you’d prefer not to install CouchDB directly, and you have Docker installed, you may run it in Docker using the command:ĭocker run -rm -name couchdb -p 5984:5984 -d couchdb Note: This section shows you how to use Homebrew to install and run CouchDB.
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