facebook-graph-api & COVID-19 Tracker(INDIA)

• Working with Facebook Graph API.
• Sample application to publish current covid19 stats for configured places(India) to Facebook Group.
• This application expose REST API's to get the current covid19 stats of INDIA as well as Publish stats for few configured places to facebook group.
• Also, there is a scheduler (with cron expression configuration) which periodically runs and publish stats to facebook group.

Pre-requisite:

1. Java - 11
2. Gradle

API's exposed

1. GET      /covid/tracker/v1/india                  - get detail information about current covid19 stats for all the states and districts in India.
2. POST     /covid/fb/v1/group                       - publish the information to configured facebook group.

Configuration

• The app configuration is externalized and currently added to application.properties present in resource path.

• To publish stats to facebook group, below two configuration should be configured

  1. fb.api.group.nodeId - The facebook group node id for the group to which has data has to be published.
  2. fb.api.group.accessToken - Access token with permission publish_to_groups. The user should have admin priviledge in order to publish to group.

• Next, you can also configure the intrested districts in India for which the stats will be published.

  1. fb.post.district.names - this can take multiple district names all separated by comma. e.g : fb.post.district.names=bengaluru, mumbai, kolkata

• Apart from API, there is also a scheduler running, which fetch data from server and publish the stats to the fb group after every configured interval of time. The time when to run scheduler can be configured as cron expression and currently, it is configured to run at the start of every hour. Details can be found in file com.satyy.fb.scheduler.PublishScheduler.java

Build and Run

1. Checkout repo.
2. run cmd sh run-app.sh

Port Used

The appication is configured to run on port 8888 which can be changed by modifying server.port in application.properties

NOTE

This application uses external endpoint to get the current covid 19 stats https://api.covidindiatracker.com/state_data.json which is availabe on the Internet