PropAMM SDK

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approve ​

Approve the router to pull an amount of an ERC-20 token from the signer. Required before any swap with ERC-20 input.

rust
pub async fn approve(&self, token: Address, amount: U256) -> Result<H256>

Usage ​

rust
use propamm::common::helpers::parse_units;
use propamm::common::tokens::USDC;

let hash = router.approve(USDC, parse_units("100", 6)?).await?;
router.client().wait_for_transaction(hash).await?;

Returns ​

Result<H256>

The approval transaction hash.

Parameters ​

token ​

  • Type: Address

The ERC-20 token to approve.

amount ​

  • Type: U256

Allowance to grant the router, in atomic units.