Module "fToken"

Index

Functions

Functions

borrow

borrow(asset: string, amount: string | number | BigNumber, options?: CallOptions): Promise<TrxResponse>

- Defined in fToken.ts:242
Borrows an Binance Smart Chain asset from the Fortress Protocol for the user. The user's address must first have supplied collateral and entered a corresponding market.
example
```
const fortress = new Fortress(window.ethereum);

(async function() {

  const daiScaledUp = '32000000000000000000';
  const trxOptions = { mantissa: true };

  console.log('Borrowing 32 DAI...');
  const trx = await fortress.borrow(Fortress.DAI, daiScaledUp, trxOptions);

  console.log('Ethers.js transaction object', trx);

})().catch(console.error);
```
Parameters
- asset: string
  
  A string of the asset to borrow (must be a supported underlying asset).
- amount: string | number | BigNumber
  
  A string, number, or BigNumber object of the amount of an asset to borrow. Use the mantissa boolean in the options parameter to indicate if this value is scaled up (so there are no decimals) or in its natural scale.
- Default value options: CallOptions = {}
Returns Promise<TrxResponse>

Returns an Ethers.js transaction object of the borrow transaction.

redeem

redeem(asset: string, amount: string | number | BigNumber, options?: CallOptions): Promise<TrxResponse>

- Defined in fToken.ts:158
Redeems the user's Binance Smart Chain asset from the Fortress Protocol.
example
```
const fortress = new Fortress(window.ethereum);

(async function() {

  console.log('Redeeming DAI...');
  const trx = await fortress.redeem(Fortress.DAI, 1); // also accepts fToken args
  console.log('Ethers.js transaction object', trx);

})().catch(console.error);
```
Parameters
- asset: string
  
  A string of the asset to redeem, or its fToken name.
- amount: string | number | BigNumber
  
  A string, number, or BigNumber object of the amount of an asset to redeem. Use the mantissa boolean in the options parameter to indicate if this value is scaled up (so there are no decimals) or in its natural scale. This can be an amount of fTokens or underlying asset (use the asset parameter to specify).
- Default value options: CallOptions = {}
Returns Promise<TrxResponse>

Returns an Ethers.js transaction object of the redeem transaction.

repayBorrow

repayBorrow(asset: string, amount: string | number | BigNumber, borrower: string, noApprove?: boolean, options?: CallOptions): Promise<TrxResponse>

- Defined in fToken.ts:321
Repays a borrowed Binance Smart Chain asset for the user or on behalf of another Binance Smart Chain address.
example
```
const fortress = new Fortress(window.ethereum);

(async function() {

  console.log('Repaying DAI borrow...');
  const address = null; // set this to any address to repayBorrowBehalf
  const trx = await fortress.repayBorrow(Fortress.DAI, 32, address);

  console.log('Ethers.js transaction object', trx);

})().catch(console.error);
```
Parameters
- asset: string
  
  A string of the asset that was borrowed (must be a supported underlying asset).
- amount: string | number | BigNumber
  
  A string, number, or BigNumber object of the amount of an asset to borrow. Use the mantissa boolean in the options parameter to indicate if this value is scaled up (so there are no decimals) or in its natural scale.
- borrower: string
- Default value noApprove: boolean = false
  
  Explicitly prevent this method from attempting an ERC-20 approve transaction prior to sending the subsequent repayment transaction.
- Default value options: CallOptions = {}
Returns Promise<TrxResponse>

Returns an Ethers.js transaction object of the repayBorrow or repayBorrowBehalf transaction.

supply

supply(asset: string, amount: string | number | BigNumber, noApprove?: boolean, options?: CallOptions): Promise<TrxResponse>

- Defined in fToken.ts:50
Supplies the user's Binance Smart Chain asset to the Fortress Protocol.
example
```
const fortress = new Fortress(window.ethereum);

// Ethers.js overrides are an optional 3rd parameter for `supply`
// const trxOptions = { gasLimit: 250000, mantissa: false };

(async function() {

  console.log('Supplying DAI to the Fortress Protocol...');
  const trx = await fortress.supply(Fortress.DAI, 1);
  console.log('Ethers.js transaction object', trx);

})().catch(console.error);
```
Parameters
- asset: string
  
  A string of the asset to supply.
- amount: string | number | BigNumber
  
  A string, number, or BigNumber object of the amount of an asset to supply. Use the mantissa boolean in the options parameter to indicate if this value is scaled up (so there are no decimals) or in its natural scale.
- Default value noApprove: boolean = false
  
  Explicitly prevent this method from attempting an BEP-20 approve transaction prior to sending the mint transaction.
- Default value options: CallOptions = {}
Returns Promise<TrxResponse>

Returns an Ethers.js transaction object of the supply transaction.