kavajs
install
npm install kavajs
Table of contents
Usage
RPC Clients
import { kava } from 'kavajs';
const { createRPCQueryClient } = kava.ClientFactory;
const client = await createRPCQueryClient({ rpcEndpoint: RPC_ENDPOINT });
// now you can query the cosmos modules
const balance = await client.cosmos.bank.v1beta1
.allBalances({ address: 'kava1addresshere' });
// you can also query the kava modules
const balances = await client.kava.exchange.v1beta1
.exchangeBalances()
Composing Messages
Import the kava
object from kavajs
.
import { kava } from 'kavajs';
const {
createSpotLimitOrder,
createSpotMarketOrder,
deposit
} = kava.exchange.v1beta1.MessageComposer.withTypeUrl;
IBC Messages
import { ibc } from 'kavajs';
const {
transfer
} = ibc.applications.transfer.v1.MessageComposer.withTypeUrl
Cosmos Messages
import { cosmos } from 'kavajs';
const {
fundCommunityPool,
setWithdrawAddress,
withdrawDelegatorReward,
withdrawValidatorCommission
} = cosmos.distribution.v1beta1.MessageComposer.fromPartial;
const {
multiSend,
send
} = cosmos.bank.v1beta1.MessageComposer.fromPartial;
const {
beginRedelegate,
createValidator,
delegate,
editValidator,
undelegate
} = cosmos.staking.v1beta1.MessageComposer.fromPartial;
const {
deposit,
submitProposal,
vote,
voteWeighted
} = cosmos.gov.v1beta1.MessageComposer.fromPartial;
Connecting with Wallets and Signing Messages
⚡️ For web interfaces, we recommend using cosmos-kit. Continue below to see how to manually construct signers and clients.
Here are the docs on creating signers in cosmos-kit that can be used with Keplr and other wallets.
Initializing the Stargate Client
Use getSigningkavaClient
to get your SigningStargateClient
, with the proto/amino messages full-loaded. No need to manually add amino types, just require and initialize the client:
import { getSigningkavaClient } from 'kavajs';
const stargateClient = await getSigningkavaClient({
rpcEndpoint,
signer // OfflineSigner
});
Creating Signers
To broadcast messages, you can create signers with a variety of options:
- cosmos-kit (recommended)
- keplr
- cosmjs
Amino Signer
Likely you'll want to use the Amino, so unless you need proto, you should use this one:
import { getOfflineSignerAmino as getOfflineSigner } from 'cosmjs-utils';
Proto Signer
import { getOfflineSignerProto as getOfflineSigner } from 'cosmjs-utils';
WARNING: NOT RECOMMENDED TO USE PLAIN-TEXT MNEMONICS. Please take care of your security and use best practices such as AES encryption and/or methods from 12factor applications.
import { chains } from 'chain-registry';
const mnemonic =
'unfold client turtle either pilot stock floor glow toward bullet car science';
const chain = chains.find(({ chain_name }) => chain_name === 'kava');
const signer = await getOfflineSigner({
mnemonic,
chain
});
Broadcasting Messages
Now that you have your stargateClient
, you can broadcast messages:
const { send } = cosmos.bank.v1beta1.MessageComposer.withTypeUrl;
const msg = send({
amount: [
{
denom: 'coin',
amount: '1000'
}
],
toAddress: address,
fromAddress: address
});
const fee: StdFee = {
amount: [
{
denom: 'coin',
amount: '864'
}
],
gas: '86364'
};
const response = await stargateClient.signAndBroadcast(address, [msg], fee);
Advanced Usage
If you want to manually construct a stargate client
import { OfflineSigner, GeneratedType, Registry } from "@cosmjs/proto-signing";
import { AminoTypes, SigningStargateClient } from "@cosmjs/stargate";
import {
cosmosAminoConverters,
cosmosProtoRegistry,
ibcProtoRegistry,
ibcAminoConverters,
kavaAminoConverters,
kavaProtoRegistry
} from 'kavajs';
const signer: OfflineSigner = /* create your signer (see above) */
const rpcEndpint = 'https://rpc.cosmos.directory/kava'; // or another URL
const protoRegistry: ReadonlyArray<[string, GeneratedType]> = [
...cosmosProtoRegistry,
...ibcProtoRegistry,
...kavaProtoRegistry
];
const aminoConverters = {
...cosmosAminoConverters,
...ibcAminoConverters,
...kavaAminoConverters
};
const registry = new Registry(protoRegistry);
const aminoTypes = new AminoTypes(aminoConverters);
const stargateClient = await SigningStargateClient.connectWithSigner(rpcEndpoint, signer, {
registry,
aminoTypes
});
Developing
When first cloning the repo:
yarn
yarn build
Codegen
Contract schemas live in ./contracts
, and protos in ./proto
. Look inside of scripts/codegen.js
and configure the settings for bundling your SDK and contracts into kavajs
:
yarn codegen
Publishing
Build the types and then publish:
yarn build:ts
yarn publish
Credits
Code built with the help of these related projects:
- @cosmwasm/ts-codegen for generated CosmWasm contract Typescript classes
- @cosmology/telescope a "babel for the Cosmos", Telescope is a TypeScript Transpiler for Cosmos Protobufs.
-
cosmos-kit A wallet connector for the Cosmos
⚛️
Disclaimer
AS DESCRIBED IN THE LICENSES, THE SOFTWARE IS PROVIDED “AS IS”, AT YOUR OWN RISK, AND WITHOUT WARRANTIES OF ANY KIND.
No developer or entity involved in creating this software will be liable for any claims or damages whatsoever associated with your use, inability to use, or your interaction with other users of the code or software using the code, including any direct, indirect, incidental, special, exemplary, punitive or consequential damages, or loss of profits, cryptocurrencies, tokens, or anything else of value.