Persistence JS

To be reviewed and updated


npm install persistenceonejs


PersistenceClient consistes of a signingStargateClient and a SigningCowsmWasmClient, refered to as core and wasm respectively.
For querying use PersistenceClient.query, this gives you a tmclient. Usage for a tmclient for querying is based on cosmos-sdk i.e. query path is taken from module locations.
import { PersistenceClient } from "persistenceonejs";
const alice = await PersistenceClient.init(...mnemonic);
const codes = await{});


  • Send Tokens Use persistenceClient.wasm to send contracts via CW20 contract, persistenceClient.wasm is a SigningWasmClient so most of the functionalities are similar to @cosmjs/cosmwasm-stargate. The Signer for this example is a mnemonic wallet.
    import { PersistenceClient, Cw20Contract } from "persistenceonejs";
    import { coins } from "@cosmjs/stargate";
    const alice = await PersistenceClient.init(...mnemonic);
    const [account] = await alice.wallet.getAccounts();
    const aliceaddress = account.address;
    const pstake =
    "persistence14hj2tavq8fpesdwxxcu44rty3hh90vhujrvcmstl4zr3txmfvw9sjvz4fk"; //cw20 token address on chain
    const res = await alice.wasm.execute(
    transfer: {
    recipient: "persistence123em6jp7y96rtylp6tjk9r0dcescl0k4ccqvpu", //recipient address
    amount: "10",
    { amount: coins(2_000_000, "stake"), gas: "200000" },
    logs: [ { msg_index: 0, log: '', events: [Array] } ],
    height: 1354,
    transactionHash: 'B4789783E9FB89FC69AB38F38C3C670612041C7E1EFFB8DF22929681BD52FB4A',
    gasWanted: 200000,
    gasUsed: 75715
    Query Balance
    const balance = await alice.wasm.queryContractSmart(pstake, {
    balance: { address: "persistence123em6jp7y96rtylp6tjk9r0dcescl0k4ccqvpu" },
    balance: "13010";
    Please refer to cowmwasm for more information on how to use CosmWasm.
  • MsgSend A more flexible way to send transaction is by creating a Msg and brodcasting it. This is the preferd way for building large scale applications with multiple components.
    import { cosmos } from "persistenceonejs";
    const sendMsg = {
    typeUrl: "/",
    fromAddress: from,
    toAddress: to,
    amount: amount,
    const res = await alice.core.signAndBroadcast(
    { amount: [{ denom: "uxprt", amount: "10000" }], gas: "100" },
    "test send",
    This method gives a lot more flexibility for an application, additional use case can be found in the helpers.

Gov Proposals

This script lets you upload and initiate a contract via Gov proposals.
NOTE: It is the default method for uploading your own contract to the persistence chain.