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utility_token.js
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utility_token.js
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var StellarSdk = require('stellar-sdk');
var server = new StellarSdk.Server('https://horizon.stellar.org');
// Keys for accounts to issue and receive
var issuingKeys = StellarSdk.Keypair
.fromSecret('SCZANGBA5YHTNYVVV4C3U252E2B6P6F5T3U6MM63WBSBZATAQI3EBTQ4');
var receivingKeys = StellarSdk.Keypair
.fromSecret('SDSAVCRE5JRAI7UFAVLE5IMIZRD6N6WOJUWKY4GFN34LOBEEUS4W2T2D');
// Create an object to represent the new asset (utility token)
var token = new StellarSdk.Asset('UtilityToken', issuingKeys.publicKey());
// First, the receiving account must trust the asset
server.loadAccount(receivingKeys.publicKey())
.then(function(receiver) {
var transaction = new StellarSdk.TransactionBuilder(receiver, {
fee: 100,
networkPassphrase: StellarSdk.Networks.PUBLIC
})
// The `changeTrust` operation creates (or alters) a trustline
// The `limit` parameter below is optional, limits the token amount
.addOperation(StellarSdk.Operation.changeTrust({
asset: token,
limit: '100000000'
}))
// setTimeout is required for a transaction
.setTimeout(100)
.build();
transaction.sign(receivingKeys);
return server.submitTransaction(transaction);
})
.then(console.log)
// Second, the issuing account actually sends a payment using the asset
.then(function() {
return server.loadAccount(issuingKeys.publicKey())
})
.then(function(issuer) {
var transaction = new StellarSdk.TransactionBuilder(issuer, {
fee: 100,
networkPassphrase: StellarSdk.Networks.PUBLIC
})
.addOperation(StellarSdk.Operation.payment({
destination: receivingKeys.publicKey(),
asset: token,
amount: '100'
}))
// setTimeout is required for a transaction
.setTimeout(100)
.build();
transaction.sign(issuingKeys);
return server.submitTransaction(transaction);
})
.then(console.log)
.catch(function(error) {
console.error('Error!', error);
});