How to Integrate with the Cosmos Blockchain with Magic
How to Integrate with the Cosmos Blockchain with Magic
#Installation
Magic interacts with the Cosmos blockchain via Magic's extension NPM package @magic-ext/cosmos. The Cosmos extension also lets you interact with the blockchain using methods from cosmjs.
note
You can skip straight to our kitchen sink example directly:
👉 Cosmos Example
#NPM
npm install --save @magic-ext/cosmos
#Yarn
yarn add @magic-ext/cosmos
#Initializing Extension
#ES Modules/TypeScript
import { Magic } from 'magic-sdk';
import { CosmosExtension } from '@magic-ext/cosmos';
const magic = new Magic('YOUR_API_KEY', {
extensions: [
new CosmosExtension({
rpcUrl: 'cosmos rpc url',
}),
],
});
#Send and Sign Transaction
To send or sign a standard Cosmos blockchain transaction, you can call the magic.cosmos.signAndBroadcast method or magic.cosmos.sign method.
#ES Modules/TypeScript
import { Magic } from 'magic-sdk';
import { CosmosExtension } from '@magic-ext/cosmos';
import { coins } from '@cosmjs/launchpad';
const magic = new Magic('YOUR_API_KEY', {
extensions: [
new CosmosExtension({
rpcUrl: 'cosmos rpc url',
}),
],
});
const metadata = await magic.user.getMetadata();
const message = [
{
type: 'cosmos-sdk/MsgSend',
value: {
amount: [
{
amount: '200',
denom: 'token',
},
],
from_address: metadata.publicAddress,
to_address: 'to address',
},
},
];
const fee = {
amount: coins(0, 'token'),
gas: '200000',
};
const sendTransactionResult = await magic.cosmos.signAndBroadcast(message, fee);
//or
const signTransactionResult = await magic.cosmos.sign(message, fee);
#Send Tokens
Using magic.cosmos.sendTokens function to native tokens on Cosmos blockchain.
#ES Modules/TypeScript
import { Magic } from 'magic-sdk';
import { CosmosExtension } from '@magic-ext/cosmos';
const magic = new Magic('YOUR_API_KEY', {
extensions: [
new CosmosExtension({
rpcUrl: 'cosmos rpc url',
}),
],
});
const result = await magic.cosmos.sendTokens('recipientAddress', 'transferAmount', 'denom', 'memo');
#Change Address
Using magic.cosmos.changeAddress function to change the address prefix.
#ES Modules/TypeScript
import { Magic } from 'magic-sdk';
import { CosmosExtension } from '@magic-ext/cosmos';
const magic = new Magic('YOUR_API_KEY', {
extensions: [
new CosmosExtension({
rpcUrl: 'cosmos rpc url',
}),
],
});
const result = await magic.cosmos.changeAddress('address prefix');
