This is a simple Weather App built on Node.js without a GUI. It can be run via command line.

You enter an address and the app fetches temperature of that place.

I've implemented two versions of the same app.
Callbacks Version - Executes via the traditional callback functions feature of Node.
Promise Version - Executes via Promises which have been added to core Node as part of the ES6 upgrade.

System Prerequisities

Node.js and npm 

Setting up the app

1. Clone the repo on your system locally.

2. Open a terminal at the root of the project.

3. Run
   npm install

4. This will install the dependencies.

5. In the root folder, open the file .env1 You need to edit the dummy API Keys with your own API Keys .

   1. Set API_KEY_GEO = < Geocode API Key >
   2. Set API_KEY_OWM = < Current Weather Map API Key >
      You can get an OWM API Key here. (Sign up Required)

   Both of these step is really important. The app won't work if you don't put valid API Keys.

6. Now rename the file from .env1 to .env
   And the app is ready.

Test the App

There are (sort of) two vesions of this app. Run the following command (from root of the project, in terminal) to test the app.

node app-callbacks.js -a 'New Delhi, India'
node app-promise.js -a 'New Delhi, India'

You should get the output in folowing format for both versions -

The address that you're searching for: New Delhi, India

Location Matched: New Delhi, Delhi, India

According to OWM,
It's currently 29.00 C.
It feels like 28.80 C though.

Sample Commands

After you've tested the app as instructed above, you can try variants of the commands given below.

Callback Version

Search by PIN Code

node app-callbacks.js -a 132001       // fetches result as expected
node app-callbacks.js -a 000001       // try this out :P

Search by Street Address

node app-callback.js -a 'Tagore Garden, Baldev Nagar'

Promise Version

Search by PIN Code

node app-promise.js -a 134007       // fetches result as expected
node app-promise.js -a 000001       // try this out :P

Search by Street Address

node app-promise.js -a 'Prayagraj'

Note :

1. To set up Geocode API you'll have to set up a billing account at Google Cloud Console (as part of a project). They give 200 USD in credits every month, which is more than sufficient for the purpose of trying (and tinkering with) this app.
2. There's a directory playground in the root of folder. It contains files that aren't related to the app but they helped in understanding the implementation of some features crucial to the app.

Contribute to the App. Hit me up on github if you have some suggestions!