Discovery News 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.mybluemix.net/

Getting started

You need a Bluemix account. If you don't have one, sign up.
Download and install the Cloud-foundry CLI tool if you haven't already.
Edit the manifest.yml file and change <application-name> to something unique. The name you use determines the URL of your application. For example, <application-name>.mybluemix.net.

declared-services:
my-discovery:
  label: discovery
  plan: free
applications:
- name: discovery-news-demo
  command: npm start
  path: .
  memory: 512M
  services:
    - my-discovery-service

Connect to Bluemix with the command line tool.

cf api https://api.ng.bluemix.net
cf login

Create and retrieve service keys to access the Discovery service:

cf create-service discovery free my-discovery-service
cf create-service-key my-discovery-service myKey
cf service-key my-discovery-service myKey

Use the credentials that are returned in step 5 to retrieve the IBM curated News environment_id from the list of environments:

curl -X GET -u <username>:<password> https://gateway.watsonplatform.net/discovery/api/v1/environments?version=2016-11-07

Output:

{
  "environments": [{
    "created": "2016-11-30T15:41:22.298Z",
    "description": "Watson News cluster environment",
    "environment_id": "bb6ffe96-53d5-44b3-8838-922d4665df8d",
    "index_capacity": {
      ...
    },
    "memory_usage": {
      ...
    },
    "name": "Watson News Environment",
    "read_only": true,
    "status": "active",
    "updated": "2016-11-30T15:41:22.298Z"
  }]
}

Use the environment_id from step 6 to retrieve the IBM curated News collection_id from the list of collections:

curl -X GET -u <username>:<password> https://gateway.watsonplatform.net/discovery/api/v1/environments/<environment_id>/collections?version=2016-11-07

Output:

{
  "collections": [
    {
      "collection_id": "0288e2a0-a1c1-4a38-a376-3c3bd89e927b",
      "description": "Watson News T3 collection",
      "name": "v5-fullnews-t3-2016",
      "configuration_id": "f916ddcd-961e-4668-b46b-2b0f9fe8f002",
      "language": "en_us",
      "status": "active",
      "created": "2016-11-30T15:41:22.318Z",
      "updated": "2016-11-30T15:41:22.318Z"
    }
  ]
}

Create an .env file in the root directory by copying the sample .env.example file using the following command:

cp .env.example .env

Update the .env with your service instance information, your environment_id, and your collection_id that you retrieved in steps 5 to 7.

The .env file will look something like the following:

DISCOVERY_USERNAME=<username>
DISCOVERY_PASSWORD=<password>

DISCOVERY_HOST=gateway.watsonplatform.net

DISCOVERY_ENVIRONMENT=<environment_id>
DISCOVERY_COLLECTION=<collection_id>

Install the needed application dependencies with this command:

npm install

Start the application locally (using Node version 6.0 or greater):

npm start

Point your browser to http://localhost:3000.
When you're ready, push the application to Bluemix with this command:

cf push

After completing these steps, you are ready to test your application. Start a browser and enter the URL of your application.

        <application-name>.mybluemix.net

For more details about developing applications that use Watson Developer Cloud services in Bluemix, see Getting started with Watson Developer Cloud and Bluemix.

Troubleshooting

The main source of troubleshooting and recovery information is the Bluemix log. To view the log, run this command:
```
cf logs <application-name> --recent
```
For more details about the service, see the documentation for the Discovery service.

Directory structure

.
├── app.js                      // express routes
├── config                      // express configuration
│   ├── error-handler.js
│   ├── express.js
│   └── security.js
├── manifest.yml
├── package.json
├── public                      // static resources
├── server.js                   // entry point
├── test                        // tests
└── views                       // react components

License

This sample code is licensed under Apache 2.0.

Contributing

See CONTRIBUTING.

Open Source @ IBM

Find more open source projects on the IBM Github Page

Privacy Notice

Sample web applications that include this package may be configured to track deployments to IBM Bluemix and other Cloud Foundry platforms. The following information is sent to a Deployment Tracker service on each deployment:

Node.js package version
Node.js repository URL
Application Name (application_name)
Space ID (space_id)
Application Version (application_version)
Application URIs (application_uris)
Labels of bound services
Number of instances for each bound service and associated plan information

This data is collected from the package.json file in the sample application and the VCAP_APPLICATION and VCAP_SERVICES environment variables in IBM Bluemix and other Cloud Foundry platforms. This data is used by IBM to track metrics around deployments of sample applications to IBM Bluemix to measure the usefulness of our examples, so that we can continuously improve the content we offer to you. Only deployments of sample applications that include code to ping the Deployment Tracker service will be tracked.

SlimC / discovery-nodejs