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Showing content from https://github.com/MeadowSuite/Meadow/wiki/Using-the-CLI below:

Using the CLI · MeadowSuite/Meadow Wiki · GitHub

• .NET Core 2.1 SDK
• PowerShell Core v6.1.0

dotnet tool install -g meadow.cli

After installing the dotnet tool globally the command meadow should be added to your PATH. From command line run meadow. A Powershell Core session will be launched and loaded with Meadow commands.

Use man Some-Command to show information and available parameters for a command. Use tab completion for commands and parameters. For more information on PowerShell see https://github.com/PowerShell/PowerShell/blob/master/docs/learning-powershell/powershell-beginners-guide.md

Optionally, save account keys to file for later usage. By default they are only in memory and will be gone after existing the CLI.

PS> Write-Accounts -Password *******

To load the accounts in a later session:

PS> Read-Accounts -Password *******

Accounts are automatically loaded in a later session if saved without encryption.

PS> Write-Accounts -EncryptData $false

Run man Update-Config to see all configuration options.

Example for configuring the solc optimization level:

PS> Update-Config -SolcOptimizer 200

This example uses the Rinkeby testnet provided by Infura.io's public JSON-RPC over https service.

PS> Update-Config -NetworkHost https://rinkeby.infura.io:443

Another example using a geth node running on the local machine with the default RPC port 8545:

PS> Update-Config -NetworkHost 127.0.0.1:8545

Once local accounts and network configuration have been setup, the workspace can be initialized for contract deployment and interaction with the network.

PS> Initialize-Workspace console
# RPC client connected to server https://rinkeby.infura.io:443. Network version: 4
# Watching for file changes in source directory: Contracts

Initial the workspace in development mode to spawn a local development / test server:

PS> Initialize-Workspace development
# Starting RPC test server...
# Started RPC test server at http://127.0.0.1:52038
# RPC client connected to server http://127.0.0.1:52038. Network version: 77
# Watching for file changes in source directory: Contracts

The server port can be specified with:

PS> Update-Config -NetworkPort 4567

Example of deploying this EIP20 token contract.

Add the EIP20.sol source files to the Contracts directory. The code will be automatically compiled if the workspace is initialized.

PS> $tokenContract = Deploy-Contract EIP20 -_initialAmount 10000 -_tokenName "Test Token" -_decimalUnits 18 -_tokenSymbol "TTO"

PS> $tokenContract = Deploy-Contract EIP20 -_initialAmount 10000 -_tokenName "Test Token" -_decimalUnits 18 -_tokenSymbol "TTO" -FromAccount $accounts[3] -Gas 4000000

PS> $tokenContract.ContractAddress
# 0x007d0cb5e18d8d55503b054f63804e3890d84ac0

PS> $tokenContract = $contracts.EIP20::At($rpcClient, "0x007d0cb5e18d8d55503b054f63804e3890d84ac0", $accounts[0]).Result

PS> $tokenContract.decimals().Call().Result
# 18

PS> $tokenContract.balanceOf
# Meadow.Contract.EthFunc[Meadow.Core.EthTypes.UInt256] balanceOf(Meadow.Core.EthTypes.Address _owner)

PS> $tokenContract.balanceOf($accounts[0]).Call().Result
# 10000

PS> $tokenContract.transfer($accounts[3], 15).EventLogs().Result
#    EventName       : Transfer
#    EventSignature  : ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
#    Address         : 0x007d0cb5e18d8d55503b054f63804e3890d84ac0
#    BlockHash       : 0x5ed48a10989ae1d24a4afbd17a3422978e145c7af1aa7f6e96d1493644fd8252
#    BlockNumber     : 2906806
#    LogIndex        : 0
#    Data            : {0, 0, 0, 0...}
#    Topics          : {0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef, 0x00000000000000000000000021957f175bea92989d6078d72d39a13cd8418ead,
#                    0x00000000000000000000000040d09902d9df8090ee567649de4b30787e4df1a5}
#    TransactionHash : 0xe5697f0a5572a35077ac33daef0bfbbb2cfe630593c376a4c4f5eddfe29c4de5
#    LogArgs         : {(_from, address, True, 0x21957f175bea92989d6078d72d39a13cd8418ead), (_to, address, True, 0x40d09902d9df8090ee567649de4b30787e4df1a5), (_value, uint256, False, 15)}
#    _from           : 0x21957f175bea92989d6078d72d39a13cd8418ead
#    _to             : 0x40d09902d9df8090ee567649de4b30787e4df1a5
#    _value          : 15

PS> $tokenContract.balanceOf($accounts[3]).Call().Result
# 15

PS> $tokenContract.transfer($accounts[5], 5).EventLogs([Meadow.JsonRpc.Types.TransactionParams]::New($accounts[4])).Result
PS> $tokenContract.transfer($accounts[5], 5).EventLogs((New-Object Meadow.JsonRpc.Types.TransactionParams -Property @{From = $accounts[3]; Gas = 4000000})).Result

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