Part 3: A closer look at operations and queries

This lesson shows you how to change data on the Chromia blockchain platform. You write Rell operations that create users, publish posts, and manage who follows whom, with a code example for each step. You also test your dapp to confirm it behaves correctly.

After that, you read data back with queries. You begin with simple ones that return user details and follower counts, then build up to queries that paginate and sort results. The lesson ends with you running queries by hand through the Chromia CLI.