> For the complete documentation index, see [llms.txt](https://docs.satay.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.satay.finance/blocks/echelon.md).

# Echelon Block

## Overview

The `echelon_block::echelon_block` module contains the block implementation for Echelon. Modules in the `blocks` package are modules that contain convenience functions that interface with an underlying protocol(e.g. echelon, moveposition, etc). These block functions are used by [concrete strategy implementations](https://github.com/Canopyxyz/canopy-docs/blob/master/satay/strategy-implementations/README.md) to interact with an underlying protocol, instead of interacting with it directly.

## Constants

* **SUPPLY\_MARKET\_TYPE**: `u64 = 200` - Type identifier for supply market operations
* **BORROW\_MARKET\_TYPE**: `u64 = 201` - Type identifier for borrow market operations

## Public Functions

### Market Operations

* `supply<CoinType>(account: &signer, market: Object<Market>, coin: Coin<CoinType>)`: Supplies coins to the specified market.
* `supply_fa(account: &signer, market: Object<Market>, asset: FungibleAsset)`: Supplies fungible assets to the specified market.
* `borrow<CoinType>(account: &signer, market: Object<Market>, amount: u64): Coin<CoinType>`: Borrows coins from the specified market.
* `withdraw<CoinType>(account: &signer, market: Object<Market>, shares: u64): Coin<CoinType>`: Withdraws coins from the specified market based on shares.
* `withdraw_fa(account: &signer, market: Object<Market>, shares: u64): FungibleAsset`: Withdraws fungible assets from the specified market based on shares.

### Account Information

* `account_coins(account: address, market: Object<Market>): u64`: Returns the number of coins an account has in a market.
* `account_shares(account: address, market: Object<Market>): u64`: Returns the number of shares an account has in a market.
* `amount_borrowable<CoinType>(account: address, market: Object<Market>): u64`: Returns the amount of coins an account can borrow from a market.
* `amount_withdrawable<CoinType>(account: address, market: Object<Market>): u64`: Returns the amount of coins an account can withdraw from a market.
* `coins_to_shares(market: Object<Market>, coins: u64): u64`: Converts coin amount to share amount for a given market.

### Reward Operations

* `get_supply_reward<CoinType>(account: address, market: address): u64`: Returns the claimable supply reward amount for a specific coin type.
* `get_supply_reward_fa(account: address, market: address, metadata: Object<Metadata>): u64`: Returns the claimable supply reward amount for a fungible asset.
* `get_borrow_reward<CoinType>(account: address, market: address): u64`: Returns the claimable borrow reward amount for a specific coin type.
* `get_borrow_reward_fa(account: address, market: address, metadata: Object<Metadata>): u64`: Returns the claimable borrow reward amount for a fungible asset.
* `claim_supply_reward<CoinType>(account: &signer, market: address): Coin<CoinType>`: Claims supply rewards for a specific coin type.
* `claim_supply_reward_fa(account: &signer, metadata: Object<Metadata>, market: address): FungibleAsset`: Claims supply rewards for a fungible asset.