open-index/open-npm huggingface dataset:
npm package: @lunie/cosmos-api
Description: Cosmos API is a library for interacting with applications built on the Cosmos SDK.
Author: Lunie International Software Systems Inc.
Latest version: 0.2.5

# Cosmos API
Cosmos API is a library for interacting with applications built on the Cosmos SDK.

## Install

```
yarn add @lunie/cosmos-js
```

## Use

Simple example of how to send tokens.

```
import Cosmos from "@lunie/cosmos-js"

const STARGATE_URL = "https://stargate.cosmos.network"
const ADDRESS = "cosmos1abcd1234"
const cosmos = Cosmos(STARGATE_URL, ADDRESS)

// create the transaction object
const msg = cosmos
  .MsgSend({toAddress: 'cosmos1abcd09876', amounts: [{ denom: 'stake', amount: 10 }})

// estimate the needed gas amount
const gasEstimate = await msg.simulate()

// create a signer
const ledgerSigner = ... // async (signMessage: string) => { signature: Buffer, publicKey: Buffer }

// send the transaction
const { included }= await msg.send({ gas: gasEstimate }, ledgerSigner)

// await tx to be included in a block
await included()
```

## API

If you want to query data only, you don't need to specify an address.

```
import { API } from "@lunie/cosmos-js"

const STARGATE_URL = "https://stargate.cosmos.network"

const api = API(STARGATE_URL)

const validators = await api.validators()
```

### Create a sign message to sign with on a Ledger or with any other signer

```
const { signWithPrivateKey } = require('@lunie/cosmos-keys');
const { createSignMessage } = require('@lunie/cosmos-api');

const stdTx = {
  msg: [
    {
      type: `cosmos-sdk/Send`,
      value: {
        inputs: [
          {
            address: `cosmos1qperwt9wrnkg5k9e5gzfgjppzpqhyav5j24d66`,
            coins: [{ denom: `STAKE`, amount: `1` }]
          }
        ],
        outputs: [
          {
            address: `cosmos1yeckxz7tapz34kjwnjxvmxzurerquhtrmxmuxt`,
            coins: [{ denom: `STAKE`, amount: `1` }]
          }
        ]
      }
    }
  ],
  fee: { amount: [{ denom: ``, amount: `0` }], gas: `21906` },
  signatures: null,
  memo: ``
}

const signMessage = createSignMessage(stdTx, { sequence, accountNumber, chainId });
const signature = signWithPrivateKey(signMessage, Buffer.from(wallet.privateKey, 'hex'));
```

### Create and sign a transaction from a message which then is ready to be broadcast

```
const { signWithPrivateKey } = require('@lunie/cosmos-keys');
const { createSignedTransaction } = require('@lunie/cosmos-api');

const sendMsg = {
  type: `cosmos-sdk/Send`,
  value: {
    inputs: [
      {
        address: `cosmos1qperwt9wrnkg5k9e5gzfgjppzpqhyav5j24d66`,
        coins: [{ denom: `STAKE`, amount: `1` }]
      }
    ],
    outputs: [
      {
        address: `cosmos1yeckxz7tapz34kjwnjxvmxzurerquhtrmxmuxt`,
        coins: [{ denom: `STAKE`, amount: `1` }]
      }
    ]
  }
}

const signer = signMessage = > signWithPrivateKey(signMessage, Buffer.from(wallet.privateKey, 'hex'))

const signMessage = createSignedTransaction({ gas: 1000, gasPrices = [{ amount: "10", denom: "uatom" }], memo = `Hi from Lunie` }, [sendMsg], signer, chainId: "test-chain", accountNumber: 0, sequence: 12);
```
npm package: @lunie/cosmos-js
Description: Wrapper around getting and sending transactions from and to applications build on top of the Cosmos SDK
Author: Lunie International Software Systems Inc.
Latest version: 0.0.22
Deprecated: WARNING: This project has been renamed to @lunie/cosmos-api. Install using @lunie/cosmos-api instead.

# Cosmos JS - Wrapper for Cosmos REST API

## Install

```
yarn add @lunie/cosmos-js
```

## Use

Simple example of how to send tokens.

```
import Cosmos from "@lunie/cosmos-js"

const STARGATE_URL = "https://stargate.cosmos.network"
const ADDRESS = "cosmos1abcd1234"
const cosmos = Cosmos(STARGATE_URL, ADDRESS)

// create the transaction object
const msg = cosmos
  .MsgSend({toAddress: 'cosmos1abcd09876', amounts: [{ denom: 'stake', amount: 10 }})

// estimate the needed gas amount
const gasEstimate = await msg.simulate()

// create a signer
const ledgerSigner = ... // async (signMessage: string) => { signature: Buffer, publicKey: Buffer }

// send the transaction
const { included }= await msg.send({ gas: gasEstimate }, ledgerSigner)

// await tx to be included in a block
await included()
```

## API

If you want to query data only, you don't need to specify an address.

```
import { API } from "@lunie/cosmos-js"

const STARGATE_URL = "https://stargate.cosmos.network"

const api = API(STARGATE_URL)

const validators = await api.validators()
```
npm package: @lunie/cosmos-keys
Description: js version of cosmos wallet signer and address generation
Author: Fabian Weber
Latest version: 0.3.2

# Cosmos Keys

Cosmos Keys is a library for creating keys and signing messages on Cosmos. You can use it to generate keypairs and addresses and to sign messages for the Cosmos Network. 

This library deals with tasks that are considered *security-critical* and should be used very carefully.

## Install

```bash
yarn add @lunie/cosmos-keys
```

## Usage

### Create a wallet

```js
import { getNewWallet } from "@lunie/cosmos-keys"

const { cosmosAddress, privateKey, publicKey } = getNewWallet()
// Attention: protect the `privateKey` at all cost and never display it anywhere!!
```

### Import a seed

```js
import { getNewWalletFromSeed } from "@lunie/cosmos-keys"

const seed = ...24 seed words here


//bech32prefix   

const bech32prefix = 'cosmos';
const { cosmosAddress, privateKey, publicKey } = getNewWalletFromSeed(seed, bech32prefix)

// Attention: protect the `privateKey` at all cost and never display it anywhere!!
```

### Sign a message

```js
import { signWithPrivateKey } from "@lunie/cosmos-keys"

const privateKey = Buffer.from(...)
const signMessage = ... message to sign, generate messages with "@lunie/cosmos-js"
const signature = signWithPrivateKey(signMessage, privateKey)

```

### Using with cosmos-js

```js
import { signWithPrivateKey } from "@lunie/cosmos-keys"
import Cosmos from "@lunie/cosmos-js"

const privateKey = Buffer.from(...)
const publicKey = Buffer.from(...)

// init cosmos sender
const cosmos = Cosmos(STARGATE_URL, ADDRESS)

// create message
const msg = cosmos
  .MsgSend({toAddress: 'cosmos1abcd09876', amounts: [{ denom: 'stake', amount: 10 }]})

// create a signer from this local js signer library
const localSigner = (signMessage) => {
  const signature = signWithPrivateKey(signMessage, privateKey)

  return {
    signature,
    publicKey
  }
}

// send the transaction
const { included }= await msg.send({ gas: 200000 }, localSigner)

// await tx to be included in a block
await included()
```