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loopback01.md

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Lets explore with loopback to create a simple Backend

Create a simple loopback APP

Go inside api container and create a folder in your prefered locations. Preferablly, inside /usr/src/app create a folder called backend

cd /usr/src/app
mkdir backend
cd backend

Now we are going to create a loopback project.

  • Type lb and hit <enter> key
lb

Expected output: Please select the following options, when it promts.

root@13fb60d0e015:/usr/src/app/backend# lb
? What's the name of your application? backend
? Which version of LoopBack would you like to use? 3.x (current)
? What kind of application do you have in mind? api-server (A LoopBack API serve
Generating .yo-rc.json)


I'm all done. Running npm install for you to install the required dependencies. If this fails, try running the command yourself.


   create .editorconfig
   create .eslintignore
   create .eslintrc
   create server/boot/root.js
   create server/middleware.development.json
   create server/middleware.json
   create server/server.js
   create README.md
   create server/boot/authentication.js
   create .gitignore
   create client/README.md

By the the project is created with some boilerplate codes.

There is a bug in with npm install. It might fails.

Quick fix, dont worry about it. Try running npm install again for few times and it works.

npm install --verbose
  • --verbose is to make sure, npm install is doing the right things. Because sometimes, it hangs and you might want to re-run. So it helps me to actually see if there any activity going on with npm install. If it hangs for long time, <ctrl + c> Quit and Try running the npm install again.

Now, lets run the backend to get a sneak peak about the API explorer.

Run the backend using node . on the backend folder

Example

root@13fb60d0e015:/usr/src/app/backend# ls
README.md  client  node_modules  package-lock.json  package.json  server
root@13fb60d0e015:/usr/src/app/backend# node .
Web server listening at: http://localhost:3000
Browse your REST API at http://localhost:3000/explorer

Check the API exporer running on localhost:3000/exporer

http://localhost:3000/explorer

click here for next stage