An online auction system is a platform where sellers put items up for auction and buyers compete by placing bids. A simple example would be: A seller puts an iPhone up for auction with a starting price of $500. Then different users start bidding: John → $550 Alex → $600 Rohit → $650 John → $...
Source: [Dev.to](https://dev.to/brawnybytes/designing-an-online-auction-bidding-system-1m2i)