Users might want to perform a swap/trade without interacting with off-chain components. We have created on-chain order support, where orders can be placed directly through the smart contract rather than the RESTful API.

The on-chain swap includes three steps under a single smart contract call: deposit, trade, and withdraw.

The on-chain order includes two steps under a single smart contract call: trade and withdraw.

Please note, all quotes and trades are against USDC as the quote currency

Before placing an order, a user first has to announce Orderly and Trading Key and make a storage deposit, more info here.

After the required steps are completed, the following smart contract function can be called to initiate an order:

All on-chain orders require a signature, more details on how to generate one can be found here

​
Create an On-chain Order

create_onchain_order

Parameters:

struct OnchainOrderInfo {
  symbol: String,
  client_order_id: Option, 
  order_type: OrderTypeEnum, // MARKET/IOC/FOK
  order_price: Option, // If order_type is MARKET, then is not required, otherwise this parameter is required.
  order_quantity: Option, // For MARKET order, if order_amount is given, it is not required.
  order_amount: Option,
  visible_quantity: Option, // The order quantity shown on orderbook. (default: equal to order_quantity)
  side: SideEnum, // SELL/BUY
  broker_id: Option, // for broker use, the id corresponding to the broker
  signature: Option, // trading signature
} 

pub fn create_onchain_order(&mut self, 
  order_info: OnchainOrderInfo, 
  orderly_key: Option, // If orderly_key=null, orderly_key from env::signer_account_pk() will be used
)

​
Example:

near call asset-manager.orderly-dev.testnet create_onchain_order '{"order_info": {"symbol": "SPOT_NEAR_USDC", "side":"SELL","order_type":"MARKET","order_quantity":"3", "signature": "43833e76a0d881f0b435e933688025eab5a6b11c647ba5058b51057cf6d41ea61479ce7fdd8a770c0b99cf86c261c19573472af0678afb6844514818296a00f001"},"orderly_key": "ed25519:EDUzpbNh9j1U3gfpRjGbHEXRgTtE3omd394ZnopvUTuO"}' --accountId example.testnet --amount 3.1

​
Create an On-chain Swap

​
Fungible token

Storage has to be paid for each token being swapped from and to, otherwise, tokens may fail to withdraw with the error message ”Smart contract panicked: panicked at 'The account is not registered'” Check here for more details on storage deposit.

ft_transfer_call

Parameters:

pub fn ft_transfer_call (&mut self,
    receiver_id: AccountId, //Orderly asset manager contract address
    amount: U128,
    memo: Option,
    msg: String, //FtOnTransferMessage::OnChainFtSwapInfo
)

pub enum FtOnTransferMessage {
    OnChainFtSwapInfo(OnchainFtSwapInfo)
}

pub struct OnchainFtSwapInfo {
    pub order_info: OnchainOrderInfo,
    pub orderly_key: Option,
}

pub struct OnchainOrderInfo {
    pub symbol: String,
    pub client_order_id: Option,
    pub order_type: OrderType,
    pub order_price: Option,
    pub order_quantity: Option,
    pub order_amount: Option,
    pub visible_quantity: Option,
    pub side: PurchaseSide,
    pub broker_id: Option,
    pub signature: String,
}

​
Example:

near call usdc.orderly-dev.testnet ft_transfer_call '{"receiver_id":"asset-manager.orderly-dev.testnet","amount":"10001000","msg":"{\"OnchainFtSwapInfo\":{\"order_info\":{\"symbol\":\"SPOT_NEAR_USDC\",\"order_type\":\"MARKET\",\"order_amount\": \"10\",\"side\":\"BUY\", \"signature\": \"f99d41a857f13fefbc2991d76ececab05f7579d23b9d22afc20662508113130a21aa7a5ac29e1f6a645c01ffdfb9e6f0f0c118ca6f9fd8854ee137f6947dbd0501\"},\"orderly_key\":\"ed25519:EKUzpbNh9j1T3gfpRjGbDEXRgTtE3omd394ZnopvUTuO\"}}"}' --accountId example.testnet --depositYocto 1 --gas 90000000000000

​
NEAR token

deposit_and_create_order

Parameters:

pub fn deposit_and_create_order (&mut self, 
    order_info: OnchainOrderInfo,
    orderly_key: Option
)

pub struct OnchainOrderInfo {
    pub symbol: String,
    pub client_order_id: Option,
    pub order_type: OrderType,
    pub order_price: Option,
    pub order_quantity: Option,
    pub order_amount: Option,
    pub visible_quantity: Option,
    pub side: PurchaseSide,
    pub broker_id: Option,
    pub signature: String,
}

​
Example:

near call asset-manager.orderly-dev.testnet deposit_and_create_order '{"order_info": {"symbol": "SPOT_NEAR_USDC", "side":"SELL","order_type":"MARKET","order_quantity":"3", "signature": "43833e76a0d881f0b435e933688025eab5a6b11c647ba5058b51057cf6d41ea61479ce7fdd8a770c0b99cf86c261c19573472af0678afb6844514818296a00f001"},"orderly_key": "ed25519:EKUzpbNh9j1T3gfpRjGbDEXRgTtE3omd394ZnopvUTuO"}' --accountId example.testnet --amount 3.1

​
Get the On-chain Order Fee

get_onchain_order_fee

Parameters:

args: {
    token: accountId,
}

Returns the fee needed to create an on-chain order in Yocto NEAR amount.

When placing an order, an amount of NEAR equivalent to the result from this function has to be attached to the contract call.

​
Example:

mainnet near view asset-manager.orderly-network.near get_onchain_order_fee '{"token": "near"}'
View call: asset-manager.orderly-network.near.get_onchain_order_fee({"token": "near"})
'5000000000000000000000'