auction-bid-tracker

Auction Bid Tracker golang implementation

You have been asked with building part of a simple online auction system which will allow users to concurrently bid on items for sale. The system needs to be built in Go and/or Python.

Please, provide a bid-tracker interface and concrete implementation with the following functionality:

• record a user’s bid on an item;
• get the current winning bid for an item;
• get all the bids for an item;
• get all the items on which a user has bid;
• build simple REST API to manage bids.

You are not required to implement a GUI (or CLI) or persistent store (events are for reporting only). You may use any appropriate libraries to help.

Structure

We have three different structs for holding each value which are user, item and bid. When we are adding a bid to an item from a user we use user id and item id together.

User	Item	Bid
id	id	user id
name	name	user id
		amount

Postman usage

There is a postman collection added for 18 requests and "auction-bid-tracker.postman_collection.json" file can be implemented in the Postman and directly called from there.

Also some mock data added inside of the program for test usage.

How To Run

go run main.go

Usage

(Part I - Solutions to given problems)

• record a user’s bid on an item :

  • request type: POST

  • host: localhost:8000/bids/{userid}/{itemid}/{amount}

• get the current winning bid for an item:

  • request type: GET

  • host: localhost:8000/winner/{itemid}

• get all the bids for an item:

  • request type: GET

  • host: localhost:8000/bids/{itemid}

• get all the items on which a user has bid

  • request type: GET

  • host: localhost:8000/items/user/{userid}

(Part II - REST API Management)

• add user

  • request type: POST

  • host: localhost:8000/users

• add user with name

  • request type: POST

  • host: localhost:8000/users/{name}

• get users

  • request type: GET

  • host: localhost:8000/users

• get user by id

  • request type: GET

  • host: localhost:8000/users/id/{idnumber}

• delete user by id

  • request type: DELETE

  • host: localhost:8000/users/id/{idnumber}

• add item

  • request type: POST

  • host: localhost:8000/items

• add item with name

  • request type: POST

  • host: localhost:8000/items/{name}

• get items

  • request type: GET

  • host: localhost:8000/items

• get item by id

  • request type: GET

  • host: localhost:8000/items/id/{idnumber}

• delete item by id

  • request type: DELETE

  • host: localhost:8000/items/id/{idnumber}

• add bid

  • request type: POST

  • host: localhost:8000/bids/{userid}/{itemid}/{amount}

• update bid

  • request type: PUT

  • host: localhost:8000/bids/{userid}/{itemid}/{amount}

• get bids

  • request type: GET

  • host: localhost:8000/bids

• get bid (by user id and item id)

  • request type: GET

  • host: localhost:8000/bids/{userid}/{itemid}

• delete bid

  • request type: DELETE

  • host: localhost:8000/bids/{userid}/{itemid}