A universe made up of particles
Main Concepts
Enjoy an introduction to the main components of the Cosmos SDK.
From Tendermint to modules, keepers, queries, and transactions in the interchain, a whole universe is waiting to be discovered.
Do you have a preferred learning style? For instance:
- Do you like to learn about all the concepts before jumping into the exercises? If yes, you can start right off with this whole chapter. When you are done, you can jump back to the exercises that you saw mentioned but skipped at the bottom of each page.
- Do you like to learn about a single concept and then jump into an exercise that applies what you just learned? If yes, for each concept in this chapter, you will find a list of jump-off points at the bottom of the page where you can go to experiment.
- Do you like to throw some code at your IDE and some commands at your CLI immediately, and only afterward learn about what you did? If yes, for each concept of this chapter, jump to the bottom of the page where you will find links to the exercises, then come back and read about the concept.
- Another way of learning? You get the idea. All the material is ready and waiting, so there is probably a way for you to accommodate it to your needs.
# In this chapter
In this chapter, you will:
- Get an introduction to Tendermint and consensus in the Cosmos SDK.
- Develop an understanding of the different components of the Cosmos SDK.
- Learn about relaying with the Inter-Blockchain Communication Protocol (IBC).
- Discover how dApp developers can benefit from Interchain Security.
A Blockchain App Architecture
ABCI, CometBFT, and state machines
Start here
Accounts
Discover how accounts, addresses, keys, and keyrings relate to each other
Start here
Transactions
Generating, signing, and broadcasting transactions
Start here
Messages
Introduction to MsgService and the flow of messages
Start here
Modules
Core Cosmos SDK modules and their components
Start here
Protobuf
Work with Protocol Buffers
Start here
Multistore and Keepers
Store types, the AnteHandler, and keepers
Start here
BaseApp
Work with BaseApp to implement applications
Start here
Queries
Query lifecycle and working with queries
Start here
Events
Use events in app development
Start here
Context
Information on the state of the app, the block, and the transaction
Start here
Testing
Best practices
Start here
Relaying With IBC
Introduction to relayers
Start here
Interchain Security
What is Interchain Security?
Start here
Bridges
Bridging to other blockchains on different protocols
Start here
Migrations
How to handle on-chain upgrades
Start here
# Next up
Want to get started with the main concepts of the Cosmos SDK? Go ahead and start with a look at A Blockchain App Architecture.
# Developer Resources
