neovmUtils

• Overview
• Installation
• Usage
• Contributing
• License

Overview

neovmUtils is a native iOS framework for interacting with the Ontology and NEO blockchains. It includes a compiled version of the neo-utils project by O3 Labs written in Go.

neovmUtils also implements BIP39 mnemonic phrases to generate wallets using an iOS wrapper of the Trezor Crypto library.

It allows users to interact with numerous classes of digital assets on Ontology, such as native ONT/ONG and OEP4/5/8/10 assets.

Installation

neovmUtils is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'neovmUtils'

And import it into your project with:

import neovmUtils

Note: neovmUtils requires iOS 12.0 or higher.

An example Podfile would look like this:

use_frameworks!
platform :ios, '12.0'

target :'My_App' do
  pod 'neovmUtils'
end

Sub-dependencies

neovmUtils requires:

• RyuCrypto - the Ryu fork of the Trezor Crypto library
• NetworkUtils - axios style HTTP request package for Swift
  • SwiftPromises - the Ryu promises package for Swift

Usage

neovmUtils offers:

• General NEOVM development tools
  • NEO/ONT Wallet
  • Parameter Building
  • Mnemonic Creation
• Ontology Blockchain Support
  • Ontology Wallet File
  • OntMonitor
  • ONT Identity
  • ONT Network Management
  • ONT RPC Methods
  • ONT TX Invocation
• NEO Blockchain Support
  • NEO Network Management
  • NEO RPC Methods
  • NEO TX Invocation
• Blockchain Interface Protocol
• Asset Interfaces
  • Asset Interface
  • General OEP Interface
  • OEP4 Interface
  • OEP5 Interface
  • OEP8 Interface
  • OEP10 Interface
• Helpful UI Elements
  • QR View
• Utils
• Compiled neo-utils golang

golang

The full neo-utils golang SDK is available for use with this pod. Simply import it with import Neoutils.

Documentation for the Go implementation is available here.

Improvements

The compiled neo-utils sdk is a little complicated to use, so a lot of it has been improved in native Swift.

For example, wallet creation can be done like the following:

import Neoutils (Compiled Swift):

let wif = "<SOME VALID WIF>"
let err = NSErrorPointer(nilLiteral: ())
let account = NeoutilsGenerateFromWIF(wif, err) // account is of type NeoutilsWallet?
if err != nil {
  print("There was an error: \(err!)")
}

Or it can be done like this:

import neovmUtils (Swift Abstraction):

let wif = "<SOME VALID WIF>"
let account = walletFromWIF(wif: wif) // account is of type Wallet?

Contributing

We welcome contributors to neovmUtils. Before beginning, please take a look at our contributing guidelines.

It follows the ontio-community sdk specifications doc for its Ontology integration.

The compiled headers created by gomobile should be wrapped in NS_ASSUME_NONNULL macros until this is resolved by gomobile (https://stackoverflow.com/a/36164132/3830876).

Primary Authors

neovmUtils - Wyatt Mufson from Ryu Games and TowerBuilders

neo-utils - Apisit Toompakdee from O3 Labs

License

neovmUtils is available under the MIT license.