Skycoin web client
The Skycoin web client provides a lite multi-coin wallet which can be ran from the browser, using a remote full node exposing selected back-end functions.
The Skycoin web interface requires Node 6.9.0 or higher, together with NPM 3 or higher.
This project is generated using Angular CLI, therefore it is adviced to first run
npm install -g @angular/cli.
To install all Angular, Angular CLI and all other libraries, you will then have to run
You will only have to run this again, if any dependencies have been changed in the
Compiling new target files
To compile new target files, you will have to run:
npm run build. To create a dev build, use
npm run build-dev
instead. To compile a build capable of being run from the local file system, use
npm run build-for-local-fs.
To build a production ready Docker image, you have to run:
docker build -t image_name:tag -f docker/images/Dockerfile .
or you can pull the image from the official repository:
docker pull skycoin/skycoin-web:<tag>
To create a container you must run:
docker run -d --name <name> -p 8001:80 skycoin/skycoin-web:latest
Then, you can access to the web wallet by visiting
npm start for a dev server. Navigate to
As this is a lite client, it requires a back-end to retrieve the blockchain state and inject new transactions. While using
a dev build, the wallet tries to connect to a Skycoin node running locally, which must be started with the
option. The production builds connects to a public node set up at
https://node.skycoin.net. The user can connect the wallet
to another backend by entering its URL.
Minimum back-end version
The wallet is currently compatible with nodes running v0.24.0 and above. As it is not possible to recover the number of active decimals in version 0.24.0, the wallet assumes that it is 6. The same happens with burn rate, so it is assumed to be 50%. Because of this, it is advisable to connect to a node running v0.25.0 or higher.
This wallet have options for switching between different coins and is compatible with most coins based on the Skycoin technology (as long as they meet some version requirements and do not have modifications in areas necessary for compatibility). You can find information about how to add a new coins in MULTICOIN-INFO.md.
For security reasons, this wallet does not store the the seeds, neither in the backend nor in the client, so the user must maintain a backup of them. The seeds are also not transmitted anywhere outside the application code.
To maintain maximum compatibility with Skycoin's original code, the cryptographic functions used by this wallet are in the skycoin-lite repository, coded in Go (Golang), and are compiled to wasm. The compiled wasm file is src/assets/scripts/skycoin-lite.wasm.
The mnemonic phrases are created using the bip39 library. To create mnemonic phrases with enough entropy, that library uses the randombytes library, which uses Crypto.getRandomValues() for obtaining cryptographically strong random values. The use of the bip39 library is limited to the creation of mnemonic phrases, the code that creates the binary seeds is in skycoin-lite.
Perform these actions before releasing:
Test if all options are working correctly when opening the wallet on the test server (using
npm start). Load a wallet with balance and try to send coins, to verify if the functions for loading wallets and creating transactions work correctly.
Test if all options are working correctly when opening the wallet from the local file system (the compilation is done by executing
make build-for-local-fs). In the local version it is important to check all the pages and make sure that all the images load correctly. For this it is useful to go through all pages while the development console is open.