The goal of this assignment is to store and create an index over question objects in MongoDB, and write a NodeJS + Express based server that exposes a RESTful API to query the index and return questions that match the query.

Each question will be annotated with one or more annotations. An annotation is defined as a topic that can come from a topic tree.

The application is hosted using Heroku and you can try it out using the following link:

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For each topic in the topic tree, the database stores the following information:

• _id: Topic name (Unique)
• children: Immediate children/subtopics of the topic
• subtopics: All the subtopics that come under the topic
• questions: All the question numbers which have at least one of the subtopics in their annotation

METHOD : GET endpoint : /search query param: q=name of topic

(For querying the root, use q=all or q=Biology)

Sample Queries:

• Breakdown of alcohol: https://pencil-backend-assessment.herokuapp.com/search?q=Breakdown%20of%20alcohol
• Golgi body: https://pencil-backend-assessment.herokuapp.com/search?q=Golgi%20body
• State the role of blood in transport and defence: http://pencil-backend-assessment.herokuapp.com/search?q=State%20the%20role%20of%20blood%20in%20transport%20and%20defence
• Absorption – root hair cells http://pencil-backend-assessment.herokuapp.com/search?q=Absorption%20%E2%80%93%20root%20hair%20cells
• All Questions i.e. root: https://pencil-backend-assessment.herokuapp.com/search?q=all