Backend Task

Data Source

THIRD PARTY API URL: $($Consider a $.$json url$)$ which has records like $(\{"$id$"$: $1,$ "title": "Fjallraven Foldsack No $1$ Backpack Fits $15$ Laptops", "price": $329\mathrm{.}85,$ "description": "Your perfect pack for everyday use and walks in the forest. Stash your laptop up to $15$ inches in the padded sleeve your everyday", "category": "men's clothing", "image: abc.jpg$,$ "sold": false, "dateOfSale": $"2021-11-27$T$20$:$29$:$54+05$:$30"\})$

REQUEST METHOD: GET

RESPONSE FORMAT : JSON

GET

Create API to initialize the database. fetch the JSON from the third party API and initialize the database with seed data. You are free to define your own efficient table collection structure

Instruction

All the APIs below should take month $($ expected value is any month between January to December$)$ as an input and should be matched against the field dateOfSale regardless of the year.

GET

Create an API to list the allitransactions$-$ API should support search and pagination on product transactions$-$ Based on the value of search parameters, it should match search text on product title$/$description$/$price and based on matching result it should return the product transactions$-$ If search parameter is empty then based on applied pagination it should retur all the records of that page numberDefault pagination values will be like page $=1,$ per page $=10$

GET

Create an API for statistics$-$ Total sale amount of selected month$-$ Total number of sold items of selected month$-$ Total number of not sold items of selected month

GET

Create an API for bar chart $($ the response should contain price range and the number of items in that range for the selected month regardless of the year $)-0-100-101-200-201-300-301-400-401-500-501-600-601-700-701-800-801-900-901-$above

GET

Create an API for pie chart Find unique categories and number of items from that category for the selected month regardless of the year.For example$-$ X category : $20($items$)-$ Y category : $5($items$)-$ Z category : $3($items$)$

GET

Create an API which fetches the data from all the $3$ APIs mentioned above, combines the response and sends a final response of the combined JSON

Tech Stack :

Node.js $,$ Express.js $,$ MongoDB, React.js

Give me code with respect to above tech stack.