Pure Swift Echo framework for iOS mobile development. Can be used to work with accounts, transactions and contracts in Swift, and to easily obtain data from the blockchain via public apis.
This framework can be obtained through CocoaPods:
pod 'ECHO', :git => 'https://github.com/echoprotocol/echo-ios-framework.git'
For setup framework use this simple code:
// Create and Setup framework main class
let echo = ECHO(settings: Settings(build: {
/** Here you can put your custom settings for our framework
Example:
Custom api options which can be used
*/
$0.apiOptions = [.accountHistory, .database, .networkBroadcast]
}))
// Start framwork. Connect to nodes and setup public apis
echo.start { (result) in
switch result {
case .success(let result):
print(result)
case .failure(let error):
print(error)
}There are simple examples of usage framework
func login() {
echo.isOwnedBy(name: "some name", password: "some password") { (result) in
print(result)
}
}func getInfo() {
let name = "some name"
echo.getAccount(nameOrID: name) { (result) in
print("Account \(result)")
}
echo.getBalance(nameOrID: name, asset: "1.3.1") { (result) in
print("Balances \(result)")
}
echo.isAccountReserved(nameOrID: name) { (result) in
print("Is reserved \(result)")
}
echo.getBalance(nameOrID: "vsharaev1", asset: nil) { (result) in
print("Assets with balances \(result)")
}
}func getHistory() {
echo.getAccountHistroy(nameOrID: "some id", startId: "1.11.0", stopId: "1.11.0", limit: 100) { (result) in
switch result {
case .success(let history):
print(history)
for element in history {
print(element)
}
case .failure(let error):
print(error)
}
}
}func setSubscriber() {
let name = "some name"
echo.subscribeToAccount(nameOrId: name, delegate: self)
}
extension YourClass: SubscribeAccountDelegate {
func didUpdateAccount(userAccount: UserAccount) {
print("Account updated \(userAccount)")
}
}func changePassword() {
echo.changePassword(old: "your old pass", new: "your new pass", name: "some name") { (result) in
switch result {
case .success(let success):
print(success)
case .failure(let error):
print(error)
}
}
}func feeForTransfer() {
echo.getFeeForTransferOperation(fromNameOrId: "some name",
toNameOrId: "some name",
amount: 300,
asset: "1.3.0",
assetForFee: nil, // By default use "1.3.0" asset
message: "some message") { (result) in
switch result {
case .success(let fee):
print(fee)
case .failure(let error):
print(error)
}
}
} echo.sendTransferOperation(fromNameOrId: "some name",
password: "some pass",
toNameOrId: "some name",
amount: 300,
asset: "1.3.0",
assetForFee: nil, // By default use "1.3.0" asset
message: "some message") { (result) in
switch result {
case .success(let success):
print(success)
case .failure(let error):
print(error)
}
}func createAsset() {
var asset = Asset("")
asset.symbol = "some symbol"
asset.precision = 4
asset.issuer = Account("some account id")
asset.predictionMarket = false
let price = Price(base: AssetAmount(amount: 1, asset: Asset("1.3.0")), quote: AssetAmount(amount: 1, asset: Asset("1.3.1")))
asset.options = AssetOptions(maxSupply: 100000,
marketFeePercent: 0,
maxMarketFee: 0,
issuerPermissions: AssetOptionIssuerPermissions.committeeFedAsset.rawValue,
flags: AssetOptionIssuerPermissions.committeeFedAsset.rawValue,
coreExchangeRate: price,
description: "some description")
echo.createAsset(nameOrId: "some name", password: "some password", asset: asset) { (result) in
switch result {
case .success(let success):
print(success)
case .failure(let error):
print(error)
}
}
}func issueAsset() {
echo.issueAsset(issuerNameOrId: "some name",
password: "some password",
asset: "1.3.87",
amount: 1,
destinationIdOrName: "some name",
message: "Some message") { (result) in
switch result {
case .success(let success):
print(success)
case .failure(let error):
print(error)
}
}func createContract() {
let byteCode = "some bytecode"
echo.createContract(registrarNameOrId: "some name",
password: "soma pass",
assetId: "1.3.0",
byteCode: byteCode) { (result) in
switch result {
case .success(let success):
print(success)
case .failure(let error):
print(error)
}
}
}func callContract() {
echo.callContract(registrarNameOrId: "some name",
password: "some password",
assetId: "1.3.0",
contratId: "1.16.1",
methodName: "incrementCounter",
methodParams: []) { (result) in
switch result {
case .success(let success):
print(success)
case .failure(let error):
print(error)
}
}
}func queryContract() {
echo.queryContract(registrarNameOrId: "some name",
assetId: "1.3.0",
contratId: "1.16.1",
methodName: "getCount",
methodParams: []) { (result) in
switch result {
case .success(let success):
print(success)
case .failure(let error):
print(error)
}
}
}