SKALE IMA SDK

IMA-SDK is a tool for dApp developers that emulates SKALE Node + IMA env on a single machine for dev purposes. This article will demonstrate how to setup and use the IMA-SDK in combination with IMA-JS library for dApp development.

Usage guide

Prerequisites

• Docker
• docker-compose
• nodejs (any version)

Initial setup

1. Clone this repo
2. Copy .env template and fill variables:

cp .env-compose-sample .env
nano .env

3. Export environment variables:

export $(grep -v '^#' .env | xargs)

4. Put SSL cert & key to ssl folder (names should be ssl_key and ssl_cert):

This step is optional You should have SSL certs and setup redirects by yourself

cp privkey.pem ~/skale-ima-sdk/ssl/ssl_key
cp cert.pem ~/skale-ima-sdk/ssl/ssl_cert

Run SDK

5. Execute to run SDK and deploy contracts:

SDK_VERSION={put sdk version here} WAIT=True bash scripts/run_sdk.sh

Now sChain and Mainnet parts are available:

# sChain
http://$IP_ADDRESS:15000
http://$DOMAIN_NAME/schain # if you have SSL certs and domain name
https://$DOMAIN_NAME/schain # if you have SSL certs and domain name

# Mainnet
http://$IP_ADDRESS:8545
http://$DOMAIN_NAME/mainnet # if you have SSL certs and domain name
https://$DOMAIN_NAME/mainnet # if you have SSL certs and domain name

When you're done, stop SDK:

CLEANUP=True bash scripts/stop_sdk.sh

Usage

Mainnet chain ID: 0x561 sChain chain ID: 0x12345

Helpful info

Pass additional accounts

You can pass any number of additional accounts to the SDK.
All accounts will have pre-allocated ETH both on Mainnet and sChain sides.

To do that add additional_accounts.json file in the root of the project. Structure of the file:

[
    {
        "private_key": "0x...",
        "address": "0x.."
    },
    {
        "private_key": "0x...",
        "address": "0x.."
    }
    ...
]

Install Nodejs

curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash - &&
sudo apt-get install -y nodejs &&
node --version

Clone this repo

git clone https://github.com/skalenetwork/skale-ima-sdk.git
cd skale-ima-sdk

Access ABIs

The ABIs generated for the IMA smart contracts deployed to mainnet/testnet and the SKALE Chain can be found in the following folder:

skale-ima-sdk/contracts_data/proxyMainnet.json # Mainnet part
skale-ima-sdk/contracts_data/proxySchain_Bob.json # sChain part

Development

Init repo for development

bash scripts/setup_ima.sh

Build and publish image:

DOCKER_USERNAME= DOCKER_PASSWORD= CONTAINER_NAME=ima_sdk BRANCH=develop VERSION=0.0.0 bash helper-scripts/build_and_publish.sh 

Troubleshooting

tail -f data_dir/all_ima_deploy_mn.txt      # Monitor IMA Mainnet deployment
tail -f data_dir/all_ima_deploy_sc.txt      # Monitor IMA SKALE Chain deployment
tail -f data_dir/all_ima_registration.txt   # Monitor IMA registration
tail -f data_dir/all_ima_loop.txt           # Monitor IMA agent

CLEANUP=True bash scripts/stop_sdk.sh       # Remove data files for rebuild
docker ps                                   # Show running containers
docker stop [NAMES]                         # Stop container before rebuilding

Reach out to the developer community on Discord:

All contributions are made under the GNU Affero General Public License v3. See LICENSE.

Copyright (C) 2020-present SKALE Labs