Messari Substreams

Pre-requisites

Getting started with Rust

• Half hour to learn Rust
• Learn Rust With Entirely Too Many Linked Lists
• Tiago's Rust first steps
• Rust By Example
• Rust By Practice
• Rustlings
• The Rust Programming Language

Getting started with Substreams

• YouTube: Introducing Substreams
• Developer Docs

Sample Substreams

• Subtreams Template (NFT)
• Uniswap v3
• Compound v2

Helpers

• Keccak 256 Encoder

Development Status

🔨 = In progress.
🛠 = Feature complete. Additional testing required.
✅ = Production-ready.

Substream	Status	Description
Ethereum Network	🔨	Network-level metrics and statistics
ETH Balance	🛠	ETH balance for every Ethereum address
ERC20 Holdings	🛠	ERC20 balance for every Ethereum address
ERC20 Price	🛠	Pricing module for ERC20 tokens
SPL Holdings		SPL token balance for every Solana address
ENS Look Up	🔨	ENS records for lookup and reverse lookup
Uniswap v2	🔨	Substreams for Uniswap v2
Compound v2	🔨	Substreams for Compound v2

Workflow

Messari Command line interface

• To install run: make install-cli
• Two commands are currently available:
  • messari init
  • messari add abi
• Use --help flag for details around providing args in the command line
• If any args are left blank the CLI will ask you for the necessary information when needed

Logging

• Rust Logging
• Logging can be done using the standard log crate, or using the slog crate.
• Note that substreams does not cache the logs. If you want to see logs, you may need to make a change to your substreams code, so that a new binary will be generated - otherwise, this substream will just stream the cached data from the first execution without the logs.