Chromia
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Your first Rell app on Chromia

Learn Web3 fundamentals and Rell by building a book review dapp on Chromia.

Beginner26 lessons6 modulesRellDapp

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  1. 01Your first Rell app on Chromia
  2. 02Set up your project
  3. 03Rell project structure

Part 1: Define your first entity

  1. 04Overview
  2. 05Create your first entity
  3. 06Add your first operation
  4. 07Query every book

Part 2: Add a related entity

  1. 08Overview
  2. 09Define the book review entity
  3. 10Add an operation for creating book reviews
  4. 11Query all reviews for a book

Part 3: Checking and validating inputs

  1. 12Overview
  2. 13Verify inputs
  3. 14Return structured results from queries

Part 4: Signing transactions and filtering queries

  1. 15Overview
  2. 16Sign a transaction
  3. 17Filter and sort query results

Part 5: Blockchain state and transactions explained

  1. 18Overview
  2. 19How blockchain state and transactions work
  3. 20Walking through an example

Part 6: Create the client

  1. 21Overview
  2. 22Prerequisites
  3. 23Establishing a connection to Chromia
  4. 24Query the blockchain using postchain-client
  5. 25Complete the example
  1. 26What’s next?