Coding Challenge

This is the coding challenge for this video by Siraj Raval on Youtube on the IBM Watson Discovery service. The challenge is to use Watson Discovery to build a sentiment analysis app. It showed classify some dataset, that could be reviews, tweets, news articles, facial expressions, anything that classifies sentiment in living things. Send a link to your GitHub repository to hello@sirajraval.com by December 11, 2018. Top 2 entries get a video shoutout, i'm looking for readable code and good documentation! Below is some sample code.

🔎 Discovery Demo

Use the IBM Watson Discovery service to add a cognitive search and content analytics engine to your applications to identify patterns, trends and actionable insights that drive better decision-making.

Demo: https://discovery-news-demo.ng.bluemix.net/

Prerequisites

Sign up for an IBM Cloud account.
Download the IBM Cloud CLI.
Create an instance of the Discovery service and get your credentials:
- Go to the Discovery page in the IBM Cloud Catalog.
- Log in to your IBM Cloud account.
- Click Create.
- Click Show to view the service credentials.
- Copy the apikey value, or copy the username and password values if your service instance doesn't provide an apikey.
- Copy the url value.

Configuring the application

In the application folder, copy the .env.example file and create a file called .env
```
cp .env.example .env
```
Open the .env file and add the service credentials that you obtained in the previous step.

Example .env file that configures the apikey and url for a Discovery service instance hosted in the US East region:
```
DISCOVERY_IAM_APIKEY=X4rbi8vwZmKpXfowaS3GAsA7vdy17Qh7km5D6EzKLHL2
DISCOVERY_URL=https://gateway-wdc.watsonplatform.net/discovery/api
```
- If your service instance uses username and password credentials, add the DISCOVERY_USERNAME and DISCOVERY_PASSWORD variables to the .env file.
Example .env file that configures the username, password, and url for a Discovery service instance hosted in the Sydney region:
```
DISCOVERY_USERNAME=522be-7b41-ab44-dec3-g1eab2ha73c6
DISCOVERY_PASSWORD=A4Z5BdGENrwu8
DISCOVERY_URL=https://gateway-syd.watsonplatform.net/discovery/api
```

Running locally

Install the dependencies
```
npm install
```
Build the application
```
npm run build
```
Run the application
```
npm start
```
View the application in a browser at localhost:3000

Deploying to IBM Cloud as a Cloud Foundry Application

Build the application
```
npm run build
```
Login to IBM Cloud with the IBM Cloud CLI
```
ibmcloud login
```
Target a Cloud Foundry organization and space.
```
ibmcloud target --cf
```
Edit the manifest.yml file. Change the name field to something unique. For example, - name: my-app-name.
Deploy the application
```
ibmcloud app push
```
View the application online at the app URL, for example: https://my-app-name.mybluemix.net

Tests

Unit tests

Run unit tests with npm run test-unit, then a to run all tests. See the output for more info.

Integration tests

First you have to make sure your code is built: npm run build

Then run integration tests with: npm run test-integration-runner

Directory structure

.
├── app.js                      // express routes
├── config                      // express configuration
│   ├── error-handler.js
│   ├── express.js
│   └── security.js
├── package.json
├── public                      // static resources
├── server.js                   // entry point
├── test                        // integration tests
└── src                         // react client
    ├── __test__                // unit tests
    └── index.js                // app entry point

License

This sample code is licensed under the MIT License.

Contributing

See CONTRIBUTING.

Open Source @ IBM

Find more open source projects on the IBM Github Page

itsmesachee/IBM_Watson_Discovery