Posted on May 8, 2025 18:23 · Latest update on May 12, 2025
A significant innovation in blockchain is the development of multi-chain systems, like Avalanche, which provide a significant improvement in scalability, interoperability, and flexibility. At the core of these multi-chain systems is the ability to run multiple blockchains that communicate. Each chain's VM is optimized for specialized use cases, thereby boosting the network's overall performance.
Cross-chain communication is a crucial building block of multi-chain systems. Utilizing Interchain Messaging and Avalanche Warp Messaging is an incredible easy way to build cross-L1 dApps, since developers can build on top an extensive and audited development framework.
In the first section, we cover some basic concepts of interoperability in multi-chain systems. You will learn about examples of interoperability between blockchains and the terms "source," "destination," and "message."
In this section, we learn what Avalanche Interchain Messaging is and what is abstracted away from the general dApp developer. You will also build your first cross-L1 dApps.
In this section, we look at techniques to secure cross-chain communication. We dive into signature schemes, multi-signature schemes, and the BLS multi-signature scheme.
Avalanche blockchains can natively interoperate between one another using AWM. You will learn about the AWM message format and how the message flow works.
You will need a general understanding of Software Development. You won't have to write a lot of code, but you will have to understand some. Therefore, we recommend:
Solidity: Familiarity with most concepts of the language. All exercises will mainly consist of writing cross-subnet dApps in Solidity.
Docker: The advanced exercises in the latter part of the course will occur in contained environments for easy setup. It will help if you're generally familiar with the concept of containerization, docker, and docker compose.
Testing: Having some experience or familiarity with unit testing is ideal.
Overall, this course aims to provide an advanced understanding of Teleporter. By completing this course, students will be better prepared to build advanced cross-Avalanche L1 blockchain applications.
12 Chapters / 71 Lessons / 12H 44Mins
Interoperability between blockchain
5Mins
Source, Message and Destination
10Mins
Recap of Multi-Chain Networks
10Mins
Interoperability in Multi-Chain Systems
5Mins
Finality Importance in Interoperabile Systems
2Mins
Avalanche Starter Kit
2Mins
Set Up Avalanche Starter Kit
15Mins
Close and Reopen Codespace
2Mins
Create a Blockchain
30Mins
Networks
5Mins
Foundry Quickstart
30Mins
Pause and Resume
30Mins
ICM Basics
7Mins
Recap of Bytes, Encoding and Decoding
20Mins
Sending a Message
15Mins
Sender Contract
30Mins
Receiving a Message
15Mins
Receiver Contract
15Mins
Send a Message
5Mins
Adapt the contract
2Mins
Two-Way Communication
10Mins
Sender Contract
10Mins
Create the Sender Contract
10Mins
Receiver Contract
5Mins
Create the Receiver Contract
5Mins
Send a Roundtrip Message
5Mins
Adapt the Contracts
2Mins
Invoking Functions
3Mins
Encoding of multiple Values
10Mins
Create Simple Calculator Sender
10Mins
Create Simple Calculator Receiver
10Mins
Call simple Calculator
5Mins
Encoding the Function Name
20Mins
Extend the Calculator
2Mins
Interchain Messaging Registry
10Mins
How the ICM Registry works
10Mins
Interact with the ICM Registry
20Mins
Retrieving Interchain Messenger from the Registry
10Mins
Verify if Sender is Interchain Messaging
10Mins
Securing Cross-Chain Communication
5Mins
Signature Schemes
20Mins
Use a Signature Scheme
-
Multi-Signature Schemes
5Mins
Signature & Key Aggregation
5Mins
Use a Multi-Signature Scheme
-
Trusted Third Parties
10Mins
Avalanche Warp Messaging
12Mins
Recap P-Chain
5Mins
Warp Message Format
10Mins
AWM Relayer
15Mins
Dataflow
10Mins
Message Pickup
20Mins
Message Delivery
15Mins
Load Considerations
5Mins
Trust Assumptions
5Mins
Running a Relayer
10Mins
Control the Avalanche CLI Relayer
5Mins
Install the AWM Relayer
10Mins
Configuration
20Mins
Two-Way Messaging Configuration
20Mins
Relayer Logs
5Mins
Restricting a Relayer
5Mins
Allowed Relayer
10Mins
Incentivizing a Relayer
10Mins
Fee Data Flow
15Mins
Determining the Fee
10Mins
Setting Incentives
5Mins
Deploy Fee Token Contract
10Mins
Incentivize an AWM relayer
15Mins
Interaction Flow With Fees
20Mins
Registering Validators
30Mins
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