To see vaccine slots available for booking a user needs to authenticate himself using the Cowin app, and then only he/she can see the available slots. We have removed this authentication barrier. Users can simply see the vaccination centers available for booking using a simple click. We have also added a new feature that the Cowin website does not provide, users can search vaccines as per their locations.
The first challenge we ran into was getting the data that we want to show to the users. We then fixed it by using the Cowin API. Another problem we had was showing vaccination centers as per users' geo location. We countered it by using open source leaflet maps.
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