Sediment is a smart contract library for Solidity and the EVM offering various building-blocks for projects and EVM chains to offer commonly requested functionality.

To add to your project, run:

npm add @dirtroad/sediment

Then important according to each of the modules:

Add AccessControl from OpenZeppelin to your contract with some pre-defined roles for authority.

import "@dirtroad/sediment/contracts/authority/Authority.sol";

Sediment offers three (3) leaderboard options for developers to use:

This leaderboard uses Ethereum addresses as the primary identifier.

import "@dirtroad/sediment/contracts/leaderboard/Leaderboard.sol";

This leaderboard uses strings as the primary identifier. This is a great option for using UUID's or other string based ID's from a server.

import "@dirtroad/sediment/contracts/leaderboard/StringLeaderboard.sol";

This leaderboard uses bytes32 as the primary identifier.

import "@dirtroad/sediment/contracts/leaderboard/BytesLeaderboard.sol";

A simple logging smart contract that allows you to add more traditional log types to your contract to help identify specific issues or information.

Automatically hashes the value with the timestamp to ensure Unique Identifiers are created for each log.

import "@dirtroad/sediment/contracts/logger/Logger.sol";

There are two rate limit contracts offered in Sediment. The first is a basic rate limit that helps ensure that transactions on a specific function are limited. This is great for chains that have low or zero gas fees.

import "@dirtroad/sediment/contracts/rateLimit/RateLimit.sol";

The second rate limit contract offered by Sediment is geared more towards mitigation against bots. Great for protecting public functions that write state to chain or offer minting; this has configurable limit times coupled with a strike system in addition to an optional blacklist for addresses.

import "@dirtroad/sediment/contracts/rateLimit/BotProtection.sol";

While not a silver bullet; this contract will help identify most tokens by type allowing for dynamic usage of addresses within a Solidity function. This is used internally within the TokenGate contracts, but can be used externally as well.

import "@dirtroad/sediment/contracts/tokenChecker/TokenChecker.sol";

The TokenGate contract was designed to be deployed once at the chain level and used by any dApp to do high-level token gating.

import "@dirtroad/sediment/contracts/tokenGate/TokenGate.sol";

The project level token gates are designed per standard token. With an ERC-20, ERC-721, and ERC-1155 token gate available; these can be deployed with a project to offer specific token gating with slightly more direct features.

/// For ERC-20
import "@dirtroad/sediment/contracts/tokenGate/ERC20.sol";

/// For ERC-721
import "@dirtroad/sediment/contracts/tokenGate/ERC721.sol";

/// For ERC-1155
import "@dirtroad/sediment/contracts/tokenGate/ERC1155.sol";

The Sediment contracts and code is WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See MIT License.