cosmos-client-ts
JavaScript / TypeScript client for Cosmos SDK blockchain.
Install
npm install --save cosmos-client
Examples
import { cosmosclient, rest, proto } from 'cosmos-client';
describe('bank', () => {
it('send', async () => {
expect.hasAssertions();
const sdk = new cosmosclient.CosmosSDK('http://localhost:1317', 'testchain');
const privKey = new proto.cosmos.crypto.secp256k1.PrivKey({
key: await cosmosclient.generatePrivKeyFromMnemonic('joke door law post fragile cruel torch silver siren mechanic flush surround'),
});
const pubKey = privKey.pubKey();
const address = cosmosclient.AccAddress.fromPublicKey(pubKey);
expect(address.toString()).toStrictEqual('cosmos14ynfqqa6j5k3kcqm2ymf3l66d9x07ysxgnvdyx');
const fromAddress = address;
const toAddress = address;
const account = await rest.cosmos.auth
.account(sdk, fromAddress)
.then((res) => res.data.account && cosmosclient.codec.unpackCosmosAny(res.data.account))
.catch((_) => undefined);
if (!(account instanceof proto.cosmos.auth.v1beta1.BaseAccount)) {
console.log(account);
return;
}
const msgSend = new proto.cosmos.bank.v1beta1.MsgSend({
from_address: fromAddress.toString(),
to_address: toAddress.toString(),
amount: [{ denom: 'token', amount: '1' }],
});
const txBody = new proto.cosmos.tx.v1beta1.TxBody({
messages: [cosmosclient.codec.packAny(msgSend)],
});
const authInfo = new proto.cosmos.tx.v1beta1.AuthInfo({
signer_infos: [
{
public_key: cosmosclient.codec.packAny(pubKey),
mode_info: {
single: {
mode: proto.cosmos.tx.signing.v1beta1.SignMode.SIGN_MODE_DIRECT,
},
},
sequence: account.sequence,
},
],
fee: {
gas_limit: cosmosclient.Long.fromString('200000'),
},
});
const txBuilder = new cosmosclient.TxBuilder(sdk, txBody, authInfo);
const signDocBytes = txBuilder.signDocBytes(account.account_number);
txBuilder.addSignature(privKey.sign(signDocBytes));
const res = await rest.cosmos.tx.broadcastTx(sdk, {
tx_bytes: txBuilder.txBytes(),
mode: rest.cosmos.tx.BroadcastTxMode.Block,
});
console.log(res);
expect(res.data.tx_response?.raw_log?.match('failed')).toBeFalsy();
});
});
For library developlers
Use starport to test.
The first digit major version and the second digit minor version should match Cosmos SDK.
The third digit patch version can be independently incremented.
for proto.d.ts
error
Insert:
import global_tendermint = tendermint;