Chain exerciser example in Golang for Ethereum permissioned chains.
Built as a sample and exerciser for the kaleido.io platform, and compatible with other Ethereum chains.
Tested with go-ethereum and Quorum and Hyperledger Besu permissioned chains.
The exerciser uses the go-ethererum JSON/RPC client to provide a simple command-line interface and code samples for:
- Compiling and executing Solidity smart contracts
- Submitting transactions to be signed by the go-ethereum (geth) node
- Externally signing transactions (using EIP155 signing)
- Checking for transaction receipts
- Private Transactions compatible with Quorum, and the EEA Enterprise Ethereum Client Specification V1
Grab the latest binary release from: https://github.com/kaleido-io/kaleido-go/releases Download, unzip and run.
This code is distributed under the Apache 2 license.
Please note the code currently statically links to code distributed under the LGPL license.
Sample exerciser for Ethereum permissioned chains - from Kaleido
Usage:
kaleido-go [flags]
Flags:
-a, --accounts stringArray Account addresses - 1 per worker needed for geth signing
-x, --args stringArray String arguments to pass to contract method (auto-converted to type)
-C, --call Call the contract and return a value, rather than sending a txn
-i, --chainid int Chain ID for EIP155 signing (networkid queried if omitted)
-c, --contract string Pre-deployed contract address. Will be deployed if not specified
-n, --contractname string The name of the contract to call, for Solidity files with multiple contracts
-d, --debug int 0=error, 1=info, 2=debug (default 1)
-E, --estimategas Estimate the gas for the contract call, rather than sending a txn
-e, --extsign Sign externally with generated private keys + accounts
-f, --file string Solidity smart contract source. Deployed if --contract not supplied
-F, --flush-period int Flush period for statsd metrics (ms) (default 1000)
-g, --gas int Gas limit on the transaction (default 1000000)
-G, --gasprice int Gas price
-h, --help help for kaleido-go
-k, --keys string JSON file to create/update with an array of private keys for extsign
-l, --loops int Loops to perform in each worker before exiting (0=infinite) (default 1)
-m, --method string Method name in the contract to invoke
-M, --metrics string statsd server to submit metrics to
-q, --metrics-qualifier string Additional metrics qualifier
-N, --nonce int Nonce (transaction number) for the next transaction (default -1)
-P, --privateFor stringArray Private for (see EEA Client Spec V1)
-p, --privateFrom string Private from (see EEA Client Spec V1)
-R, --rpc-timeout int Timeout in seconds for an individual RCP call (default 30)
-S, --seconds-max int Time in seconds before timing out waiting for a txn receipt (default 20)
-s, --seconds-min int Time in seconds to wait before checking for a txn receipt (default 11)
-T, --telegraf Telegraf/InfluxDB stats naming (default is Graphite)
-t, --transactions int Count of transactions submit on each worker loop (default 1)
-u, --url string JSON/RPC URL for Ethereum node: https://user:[email protected]
-w, --workers int Number of workers to run (default 1)
## Build
makeExample commands below expect you to have set the following parameters:
# The full Node URL including any application credentials
NODE_URL="https://user:[email protected]"
# Account existing on the node
ACCOUNT=0x0102030405060708090a0b0c0e0e0f1011121314Shell Command (linux/mac):
./kaleido-go -f examples/simplestorage.sol \
-m set -x 12345 \
-u "$NODE_URL" -a "$ACCOUNT"You can enable DEBUG output with
-d 2
Example output:
INFO[2018-05-14T22:58:41-04:00] Exercising method 'set' in solidity contract examples/simplestorage.sol
INFO[2018-05-14T22:58:42-04:00] Deploying contract using worker W0000
INFO[2018-05-14T22:58:42-04:00] W0000/L0000/N000127: TX:0x739746d5b0c8bfb85e9975bd6ba5b5de52debd4e5119b556e22370ebc6947bdf Sent. OK=true [0.06s]
INFO[2018-05-14T22:58:54-04:00] W0000/L0000/N000128: TX:0x739746d5b0c8bfb85e9975bd6ba5b5de52debd4e5119b556e22370ebc6947bdf Mined=true after 11.18s [0.18s]
INFO[2018-05-14T22:58:54-04:00] Contract address=0x2C13d6D15975EfbF7DfD2bFdaFe7413e391eFc65
INFO[2018-05-14T22:58:54-04:00] W0000/L0000/N000128: TX:0x51a62f3922f59405e86f85d79ad79bfcfdf24305ac4b103c6fe0ca6cd97105c3 Sent. OK=true [0.04s]
INFO[2018-05-14T22:59:05-04:00] W0000/L0000/N000129: TX:0x51a62f3922f59405e86f85d79ad79bfcfdf24305ac4b103c6fe0ca6cd97105c3 Mined=true after 11.17s [0.17s]
Shell Command (linux/mac):
./kaleido-go -f examples/simplestorage.sol \
-m get -C -c 0x2C13d6D15975EfbF7DfD2bFdaFe7413e391eFc65 \
-u "$NODE_URL" -a "$ACCOUNT"TODO: Perform data-type sensitive parsing of return values
Example output:
INFO[2018-05-14T23:01:26-04:00] Exercising method 'get' in solidity contract examples/simplestorage.sol
INFO[2018-05-14T23:01:26-04:00] Contract address=0x2C13d6D15975EfbF7DfD2bFdaFe7413e391eFc65
INFO[2018-05-14T23:01:26-04:00] W0000/L0000/N000129: Call result: '0x0000000000000000000000000000000000000000000000000000000000003039' [0.04s]
Run 10 contract calls with 1 second delay between each call
Shell command (linux/mac):
./kaleido-go -f examples/simplestorage.sol \
-m get -C -c 0x2C13d6D15975EfbF7DfD2bFdaFe7413e391eFc65 \
-u "$NODE_URL" -a "$ACCOUNT"
-l 10 -s 1Private transactions can only currently be signed on the node
Shell Command (linux/mac):
./kaleido-go -f examples/simplestorage.sol -m set -x 12345 \
-t 10 \
-p xoA1FQSUHpslp7lJWgRQXDErm/nsP7/CpBOWf6M3VTI= -P p3+cTaDZ9Lw1EPlJlcM9hhezlXTqAEi6xi+LTDIdW2E= \
-s 15 -S 30 -d 3 \
-u "$NODE_URL" -a "$ACCOUNT"The private keys will be randomly generated (and discarded), so this is only an example of external signing logic for exercising a node
Shell Command (linux/mac):
./kaleido-go -f examples/simplestorage.sol -m set -x 12345 -u "$NODE_URL" -e