Very new to developing dApps, but would like to develop a basic application that would work as a business directory where users could both submit contacts to a phonebook/directory as well as query the directory for business listings. Could someone point me in the right direction as far as architecting this and best practices? I know exactly how I would do this in the traditional database world, but again, blockchain development/architecture is very new to me.
I see some documentation about the “hash map” design pattern Hash Map Design Pattern | Algorand Developer Portal
However, I’m still a bit confused about how I would query other fields within the “table”. Is this possible without having a traditional database serve as a cache for the data on the blockchain?
Should I use an API service like PureStake?
Ideally, I’d like end users to pay for some of the features of this app with something like AlgoSigner.
Any feedback would be helpful.