Using this repo, you can measure transaction latency on differenct blockchain platforms(ex: Solana mainnet-beta, Avalanche C-chain, Polygon PoS, and Klaytn). Transaction latency is measured by sending a simple value transfer transaction through public RPC url provided by each chain. Each subdirectory is for each different blockchain platform. Codes for other chains will be updated.

This project uses NodeJS v16.14.2.

1. Open terminal
2. Clone the repo by running https://github.com/klaytn/tx-latency-measurement.git
3. cd tx-latency-measurement/{BlockchainName}-tx-latency-measurement by selecting which blockchain you want to measure.
4. Run npm install to install node packages.
5. Copy and paste .env.template file. Then rename it to .env and update variables with your Private key, url of blockchain explorer, and public rpc url. You should also decide whether to upload to GCS/S3, and provide appropriate credentials.
6. Run node sendtx_{BlockchainName}.js.

1. Open terminal
2. Clone the repo by running https://github.com/klaytn/tx-latency-measurement.git
3. Run npm install to install node packages.

cd tx-latency-measurement/klaytn-tx-latency-measurement
npm install

3. Copy and paste .env.template file. Then rename it to .env.

cp .env.template .env

4. Update .env and make sure PRIVATE_KEY and S3_BUCKET is empty as below:

PRIVATE_KEY=
CAVER_URL=https://public-node-api.klaytnapi.com/v1/baobab
S3_BUCKET=

5. Run node sendtx_klaytn.js. Then the output will give you new Private Key and Address.

starting tx latency measurement... start time = 1661338618926
Private key is not defined. Use this new private key({NEW_PRIVATE_KEY}).
Get test KLAY from the faucet: https://baobab.wallet.klaytn.foundation/faucet
Your Klaytn address = {NEW_ADDRESS}

• With NEW_ADDRESS, get test KLAY from faucet page.
• Update PRIVATE_KEY in .env file with this NEW_PRIVATE_KEY.

6. Run node sendtx_klaytn.js. You can see the result as below:

starting tx latency measurement... start time = 1661339036754
failed to s3.upload! Printing instead! undefined bucket name
{"executedAt":1661339056756,"txhash":"0x78273bf3015cffc003b09908b322562eda5d830b455ae1c80b7a090d3b60a43b","startTime":1661339057100,"endTime":1661339059192,"chainId":1001,"latency":2092,"error":"","txFee":0.00105,"txFeeInUSD":0.00026812274999999996,"resourceUsedOfLatestBlock":38800,"numOfTxInLatestBlock":1,"pingTime":24}

1. Install Docker https://docs.docker.com/install/

2. Build a docker image in a folder you would like to measure.

   > docker build -t klaytn-tx-latency-measurement:latest .

3. Run a container out of the image

   > docker run klaytn-tx-latency-measurement:latest

Note: You need to provide credentials JSON inside a directory if you wish to upload to GCS

(unchecked: to be updated)

• Klaytn
• Polygon PoS
• Avalanche C-chain
• Solana
• Near Protocol
• EOS
• Fantom
• Polkadot
• Cosmos
• BNB
• Hedera
• Elrond
• Harmony