Onyx Protocol
  • 📖Onyx Documentation
  • ☕Getting Started
    • 🔬Networks
    • 📒Protocol Math
      • oToken and Underlying Decimals
      • Interpreting Exchange Rates
      • Calculating Accrued Interest
      • Calculating the APY Using Rate Per Block
    • 💹Gas Costs
  • 🧑‍💻OTokens
    • Mint
    • Redeem
    • Redeem Underlying
    • Borrow
    • Repay Borrow
    • Repay Borrow Behalf
    • Transfer
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    • Key Events
    • Error Codes
    • Failure Info
    • Exchange Rate
    • Get Cash
    • Total Borrow
    • Borrow Balance
    • Borrow Rate
    • Total Supply
    • Underlying Balance
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    • Total Reserves
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  • ⚙️Comptroller
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    • Collateral Factor
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  • 👨‍👩‍👦Governance
    • Governor Alpha
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    • Timelock
    • Pause Guardian
  • 🔡API
    • Basic API
      • GET: /otoken
      • GET: /market_history/graph
      • GET: /user/history
      • GET: /get_liquidators
      • GET: /get_liquidator:account
      • GET: /get_liquidator_detail:account
      • GET: /liquidator
    • GraphQL API
      • oTokens Subgraph
      • History Subgraph
      • Governance Subgraph
    • Governance API
      • GET: /proposal
      • GET: /proposal/:proposalId
      • GET: /voter/:proposalId
      • GET: /voter/accounts
      • GET: /voter/history/:address
    • Shared Data Types
  • 📖Onyx.js
    • Onyx Constructor
    • API Methods
      • Account
      • oToken
      • Market History
      • Governance
    • oToken Methods
      • Supply
      • Redeem
      • Borrow
      • Repay Borrow
    • XCN Methods
      • To Checksum Address
      • Get XCN Balance
      • Get XCN Accrued
      • Claim XCN
      • Delegate
      • Delegate By Sig
      • Create Delegate Signature
    • Comptroller Methods
      • Enter Markets
      • Exit Market
    • Ethereum Methods
      • Read
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      • Get Balance
    • Governance Methods
      • Cast Vote
      • Cast Vote By Sig
      • Create Vote Signature
    • Price Feed Methods
      • Get Price
    • Utility Methods
      • Get Address
      • Get ABI
      • Get Network Name With Chain ID
  • 🔒Security
    • Bug Bounty Program
  • 📄Terms of Service
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  1. OTokens

Borrow

PreviousRedeem UnderlyingNextRepay Borrow

Last updated 2 years ago

The borrow function transfers an asset from the protocol to the user, and creates a borrow balance which begins accumulating interest based on the for the asset. The amount borrowed must be less than the user's and the market's available liquidity.

To borrow Ether, the borrower must be 'payable' (solidity).

OErc20 / OEther

function borrow(uint borrowAmount) returns (uint)
  • msg.sender: The account to which borrowed funds shall be transferred.

  • borrowAmount : The amount of the underlying asset to be borrowed.

  • RETURN: 0 on success, otherwise an

Solidity

OErc20 oToken = OErc20(0x3FDA...);
require(oToken.borrow(100) == 0, "got collateral?");

Web3 1.0

const oToken = OEther.at(0x3FDB...);
await oToken.methods.borrow(50).send({from: 0xMyAccount});
🧑‍💻
Borrow Rate
Account Liquidity
Error code