@onflow/six-usdc-transfer

@onflow/six-usdc-setup

Stored Interaction for transferring USDC between Flow accounts.

Status

• Last Updated: March 21 2022
• Stable: No
• Risk of Breaking Change: Very High

Known Upcoming Changes:

• Potential changes to all aspects of Stored Interactions

Install

npm install @onflow/six-usdc-transfer

Configuration

To use this Stored Interaction, you must configure FCL with certain account addresses which contain contracts imported by this Stored Interaction.

Dependencies	Mainnet	Testnet
0xFUNGIBLETOKENADDRESS	0xf233dcee88fe0abe	0x9a0766d93b6608b7
0xUSDCADDRESS	0xb19436aae4d94622	0x1ab3c177460e1e4a

Example (for mainnet):

fcl.config()
  .put("0xFUNGIBLETOKENADDRESS", "0xf233dcee88fe0abe")
  .put("0xUSDCADDRESS", "0xb19436aae4d94622")

Example (for testnet):

fcl.config()
  .put("0xFUNGIBLETOKENADDRESS", "0x9a0766d93b6608b7")
  .put("0xUSDCADDRESS", "0x1ab3c177460e1e4a")

Learn more about configuring FCL here: https://github.com/onflow/fcl-six/blob/master/docs/configure-fcl.mdx

Usage:

import * as fcl from "@onflow/fcl"
import { template as usdcSetup } from "@onflow/six-usdc-transfer"

fcl.config().put("accessNode", "http://localhost:8080");

const response = await fcl.send([
    usdcTransfer({
        proposer: fcl.currentUser().authorization,
        authorization: fcl.currentUser().authorization,     
        payer: fcl.currentUser().authorization,        
        amount: "123.456",                                    // Amount as a String representing a Cadence UFix64
        to: "0xABC123DEF456"                                  // The Address of the Account to transfer FUSD to.     
    })
])

Hashing

Hashing Code:

    console.log(crypto.createHash('sha256').update(CODE, 'utf8').digest('hex'))