Evmos TS Wallet
Evmos ts/js wallet to sign and broadcast messages created with evmosjs
Usage
yarn add @hanchon/evmos-ts-wallet
Some constants are exported as helpers but the values may not be updated for the current state of the network:
- MAINNET_FEE
- TESTNET_FEE
- LOCALNET_FEE
- MAINNET_CHAIN
- TESTNET_CHAIN
- LOCALNET_CHAIN
Configuration
The constants for fee
and chain
should be updated by the user to follow the network upgrade and the fee changes, I'll try to keep it up to date, but probably you want to control this values in your code.
Both getSender
and brodcast
should set the option parameter called url
, this should be pointing to the port 1317
of your node or a public rest endpoint. By default is using localhost:1317
.
Both signing
functions have the optional parameter broadcastMode
that by default is BROADCAST_MODE_BLOCK
.
Example using keplr signature
import { Wallet } from '@ethersproject/wallet'
import { createMessageSend } from '@tharsis/transactions'
import {
broadcast,
getSender,
LOCALNET_CHAIN,
LOCALNET_FEE,
signTransaction,
} from '@hanchon/evmos-ts-wallet'
;(async () => {
const privateMnemonic =
'pluck view carry maid bamboo river major where dutch wood certain oval order wise awkward clerk adult summer because number raven coil crunch hat'
const wallet = Wallet.fromMnemonic(privateMnemonic)
const sender = await getSender(wallet)
const txSimple = createMessageSend(LOCALNET_CHAIN, sender, LOCALNET_FEE, '', {
destinationAddress: 'evmos1pmk2r32ssqwps42y3c9d4clqlca403yd9wymgr',
amount: '1',
denom: 'aevmos',
})
const resKeplr = await signTransaction(wallet, txSimple)
const broadcastRes = await broadcast(resKeplr)
if (broadcastRes.tx_response.code === 0) {
console.log('Success')
} else {
console.log('Error')
}
})()
Example using eip712
import { Wallet } from '@ethersproject/wallet'
import { createMessageSend } from '@tharsis/transactions'
import {
broadcast,
getSender,
LOCALNET_CHAIN,
LOCALNET_FEE,
signTransactionUsingEIP712,
} from '@hanchon/evmos-ts-wallet'
;(async () => {
const privateMnemonic =
'pluck view carry maid bamboo river major where dutch wood certain oval order wise awkward clerk adult summer because number raven coil crunch hat'
const wallet = Wallet.fromMnemonic(privateMnemonic)
const sender = await getSender(wallet)
const txSimple = createMessageSend(LOCALNET_CHAIN, sender, LOCALNET_FEE, '', {
destinationAddress: 'evmos1pmk2r32ssqwps42y3c9d4clqlca403yd9wymgr',
amount: '1',
denom: 'aevmos',
})
const resMM = await signTransactionUsingEIP712(
wallet,
sender.accountAddress,
txSimple,
)
const broadcastRes = await broadcast(resMM)
if (broadcastRes.tx_response.code === 0) {
console.log('Success')
} else {
console.log('Error')
}
})()
NOTE
- If your wallet didn't get any transaction, it won't be registered in the blockchain and the
getSender
function will throw an error. - The
getSender
function should be called before sending each transaction to update the nonce or manually increment the value in the sender object.
Dependencies
- @ethersproject
- @metamask/eth-sig-util
- @creatajs/proto
- @tharsis/transactions
- node-fetch (using
v2
that is limited but should work without enforcingESM
. Insrc/helper.ts
there is a basic implementation offetch
andpost
that can be used to replacenode-fetch
, in case that lib is not working for your case)