Get some native assets in testnet

You need to get some testnet native assets for creating and operating as a router.

Here link to available faucets

Providing Liquidity

Deprecated: In order to provide liquidity, the router must be whitelisted by the Connext admins. Please contact the team to be whitelisted.

Once this is done, follow the following steps using the block explorer for the desired chain:

• Acquire assets by calling Mint function for providing liquidity (assets are listed in testnet or mainnet (COMING SOON)).
• Approve tokens for the Connext.sol contract address.
• Call the function addLiquidityFor on the Connext.sol contract using your router address and the asset address as local.

You can use Add liquidity UI for adding liquidity: https://testnet.amarok.connextscan.io/router/<YOUR_ROUTER_ADDRESS>

Another way to provide liqudity is to use script:

from web3 import Web3import argparse
#AddLiquidty function hexsmartcontract_method="0xe070da09"#https://rpc.infochain_dict = {                "rinkeby": { "rpc": "https://rinkeby.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161", "connext_smart_contract": "0x979588965099F4DEA3CAd850d67ca3356284591e", "token_asset": "0xB7b1d3cC52E658922b2aF00c5729001ceA98142C"},                "kovan": { "rpc": "https://kovan.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161", "connext_smart_contract": "0x71a52104739064bc35bED4Fc3ba8D9Fb2a84767f", "token_asset": "0xB5AabB55385bfBe31D627E2A717a7B189ddA4F8F"},                "goerli": { "rpc": "https://goerli.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161", "connext_smart_contract": "0xDc495507b830E5D1d8C073D4B12D144e76100816", "token_asset": "0xD426e23A6a9524101CDC017e01dDc3262B7aA65D" }               }
def construct_txn_data(method, amount, asset_id, router_address):    amount = str(hex(amount*1000000000000000000)[2:])    while len(amount) < 64:       amount = "0"+amount    asset_id = "000000000000000000000000" + asset_id[2:]    router_address = "000000000000000000000000" + router_address[2:]    data = method+amount+asset_id+router_address    return data.lower()
def create_txn(data, mnemonic, rpc_url, smart_contract, router_address):    web3 = Web3(Web3.HTTPProvider(rpc_url))    web3.eth.account.enable_unaudited_hdwallet_features()    account = web3.eth.account.from_mnemonic(mnemonic, account_path="m/44'/60'/0'/0/0")    private_key1 = account.key
    #build a transaction in a dictionary    nonce = web3.eth.getTransactionCount(router_address)    chainId = web3.eth.chain_id    tx = {        'nonce': nonce,        'chainId': chainId,        'to': smart_contract,        'data': data,        'gas': 2000000,        'gasPrice': web3.toWei('50', 'gwei')    }
    #sign the transaction    signed_tx = web3.eth.account.sign_transaction(tx, private_key1)
    #send transaction    tx_hash = web3.eth.sendRawTransaction(signed_tx.rawTransaction)
    #get transaction hash    return web3.toHex(tx_hash)
parser = argparse.ArgumentParser(description='Provide --network, --router_address, --amount  and --mnemonic')parser.add_argument('--network', type=str, required = True,                    help='testnet network can be rinkeby,goerli,kovan')parser.add_argument('--router_address', type=str, required = True,                    help='router address')parser.add_argument('--mnemonic', type=str, required = True,                    help='router mnemonic in ""')parser.add_argument('--amount', type=int, required = True,                    help='amount of Test tokens to stake without decimals')args = parser.parse_args()
data = construct_txn_data(smartcontract_method,args.amount,chain_dict[args.network]["token_asset"],args.router_address)print("TNX hash is: " + create_txn(data, args.mnemonic, chain_dict[args.network]["rpc"], chain_dict[args.network]["connext_smart_contract"], args.router_address))

Before running install web3 using pip

pip3 install web3

Example of running script

python3 add_liquidity.py --network rinkeby --mnemonic "test test test test" --router_address 0xA59057F7B69d68e6DfbfbBEb6821Bd1512424A81 --amount 20