@okxweb3/coin-cosmos NPM

@okxweb3/coin-cosmos

Cosmos SDK is used to interact with the Cosmos blockchain, it contains various functions can be used to web3 wallet. The SDK not only support Atom, it also supports following chains:

Atom
Axelar
Cronos
Evmos
Iris
Juno
Kava
Kujira
Osmos
Secret
Sei
Stargaze
Terra

Getting Started

Installing Cosmos SDK

npm install @okxweb3/coin-cosmos

Using Cosmos SDK

Supported Functions

- getDerivedPath
- getNewAddress
- getAddressByPublicKey
- validAddress
- caclTxHash
- signTransaction
- signMessage
- validSignedTransaction

Get New Address

get new address

import { AtomWallet } from "@okxweb3/coin-cosmos";

let wallet = new AtomWallet()
let path = await wallet.getDerivedPath({ index: 0 });
let mnemonic = "save latin you ill print flash dish begin radio fish canyon day";
let param = {
  mnemonic: mnemonic,
  hdPath: path
};

let privateKey = await wallet.getDerivedPrivateKey(param);
let params: NewAddressParams = {
  privateKey: privateKey
};
let address = await wallet.getNewAddress(params);

get address by public key

import { AtomWallet } from "@okxweb3/coin-cosmos";

let wallet = new AtomWallet()
let param = {
    publicKey: "039c24c03de96d7542934469c7466e504b5d8608c399dddbb4814b1961f8f73a53" 
}
let addr = await wallet.getAddressByPublicKey(param);

validate address

import {AtomWallet} from "@okxweb3/coin-cosmos";

let wallet = new OsmoWallet()
let prefix = "osmo"
let addr = "osmo1lyjxk4t835yj6u8l2mg6a6t2v9x3nj7ulaljz2"
let ok = wallet.validAddress(addr, prefix)

Sign Transaction

transfer

import { AtomWallet } from "@okxweb3/coin-cosmos";

let wallet = new AtomWallet()
const params: SignTxParams = {
  privateKey: "ebc42dae1245fad403bd18f59f7283dc18724d2fc843b61e01224b9789057347",
  data: {
    type: "transfer",
    chainId: "cosmoshub-4",
    sequence: 0,
    accountNumber: 623151,
    feeDemon: "uatom",
    feeAmount: 1000,
    gasLimit: 10000,
    memo: "memo",
    data: {
      fromAddress: "cosmos1jqyc3jw6hxr90hm575a8qvu2frwhe78ry0wmwc",
      toAddress: "cosmos1jun53r4ycc8g2v6tffp4cmxjjhv6y7ntat62wn",
      demon: "uatom",
      amount: 10000
    }
  }
}
let result = await wallet.signTransaction(params);

const validParam = {
  tx: result,
  data: {
    chainId: "cosmoshub-4",
    accountNumber: 623151,
  }
}
const ok = await wallet.validSignedTransaction(validParam);

ibc transfer

import { AtomWallet } from "@okxweb3/coin-cosmos";

let wallet = new AtomWallet()
const params: SignTxParams = {
  privateKey: "ebc42dae1245fad403bd18f59f7283dc18724d2fc843b61e01224b9789057347",
  data: {
    type: "ibcTransfer",
    chainId: "osmosis-1",
    sequence: 2,
    accountNumber: 584406,
    feeDemon: "uosmo",
    feeAmount: 0,
    gasLimit: 100000,
    memo: "",
    data: {
      fromAddress: "osmo1lyjxk4t835yj6u8l2mg6a6t2v9x3nj7ulaljz2",
      toAddress: "cosmos1rvs5xph4l3px2efynqsthus8p6r4exyr7ckyxv",
      demon: "uosmo",
      amount: 100000,
      sourcePort: "transfer",
      sourceChannel: "channel-0",
      ibcTimeoutTimestamp: 1657611171,
    }
  }
}
let result = await wallet.signTransaction(params);

sign message

import { AtomWallet } from "@okxweb3/coin-cosmos";

let wallet = new AtomWallet()

// amino
const msg1 = "{\n  \"chain_id\": \"osmosis-1\",\n  \"account_number\": \"584406\",\n  \"sequence\": \"1\",\n  \"fee\": {\n    \"gas\": \"250000\",\n    \"amount\": [\n      {\n        \"denom\": \"uosmo\",\n        \"amount\": \"0\"\n      }\n    ]\n  },\n  \"msgs\": [\n    {\n      \"type\": \"osmosis/gamm/swap-exact-amount-in\",\n      \"value\": {\n        \"sender\": \"osmo1lyjxk4t835yj6u8l2mg6a6t2v9x3nj7ulaljz2\",\n        \"routes\": [\n          {\n            \"poolId\": \"722\",\n            \"tokenOutDenom\": \"ibc/6AE98883D4D5D5FF9E50D7130F1305DA2FFA0C652D1DD9C123657C6B4EB2DF8A\"\n          }\n        ],\n        \"tokenIn\": {\n          \"denom\": \"uosmo\",\n          \"amount\": \"10000\"\n        },\n        \"tokenOutMinAmount\": \"3854154180813018\"\n      }\n    }\n  ],\n  \"memo\": \"\"\n}"
const param1: SignTxParams = {
    privateKey: "ebc42dae1245fad403bd18f59f7283dc18724d2fc843b61e01224b9789057347",
    data: {
        type: "amino",
        data: msg1,
    },
}
let res1 = await wallet.signMessage(param1);

// signDoc
const msg2 = "{\n" +
    "    \"body\":\"0a8c010a1c2f636f736d6f732e62616e6b2e763162657461312e4d736753656e64126c0a2c746572726131786d6b637a6b353978676a687a6777686667386c357467733275667470756a396367617a7234122c746572726131766d39706670683473796639673368667a3239363336636677357770396e36787775743878751a0e0a05756c756e6112053130303030120474657374\",\n" +
    "    \"authInfo\":\"0a500a460a1f2f636f736d6f732e63727970746f2e736563703235366b312e5075624b657912230a210273b82eca7f32a817b97130792f92c0f55faec2ff8a6101296fc49c6b16c61a6112040a020801180412130a0d0a05756c756e6112043230303010a08d06\",\n" +
    "    \"chainId\":\"bombay-12\",\n" +
    "    \"accountNumber\":\"588053\"\n" +
    "}"
const param2: SignTxParams = {
    privateKey: "ebc42dae1245fad403bd18f59f7283dc18724d2fc843b61e01224b9789057347",
    data: {
        type: "signDoc",
        data: msg2,
    },
}
let res2 = await wallet.signMessage(param2);

calc tx hash

import { AtomWallet } from "@okxweb3/coin-cosmos";

let wallet = new AtomWallet()
let calcTxHashParams = {
  data: "CroBCqwBCiEvY29zbW9zLmJhbmsudjFiZXRhMS5Nc2dNdWx0aVNlbmQShgEKQQotY29zbW9zMTQ0ZnpwZXB1dmRmdHY0dTRyOWtxOHQzNWFwMmNycnV2NHUzdWR6EhAKBXVhdG9tEgcyMDUyODU1EkEKLWNvc21vczFqOHBwN3p2Y3U5ejh2ZDg4Mm0yODRqMjlmbjJkc3poMDVjcXZmORIQCgV1YXRvbRIHMjA1Mjg1NRIJMTAxODkxNjMwEmkKUgpGCh8vY29zbW9zLmNyeXB0by5zZWNwMjU2azEuUHViS2V5EiMKIQMR/Pg4sU7FYEvodBskuXDWdETvNt+tfNgUmDxggoLl/BIECgIIARiezAcSEwoNCgV1YXRvbRIEMTAwMBDAmgwaQK8PXeXVBBf1KPV3zXYHJc/+YcxM1MI5WBQGdGwE8qTnaoQmTnnU/wYetrxBGfulcvYhiFbZ19qlrupUwFkXeRo=",
};

const txHash = await wallet.calcTxHash(calcTxHashParams);