ERC-20 TOKEN SNAPSHOT exports balance of token holders of erc-20 smart contract at a specific block to csv file.

There are two modes to create a snapshot.

1. ARCHIVED You will need an archived node address, since the application requests for the historical balance of the contract.

2. EVENT Requires no special node. Collects balance from transfer events. Works with Infura free plan.

brew install OpenFuturePlatform/tap/token-snapshot

Test running token-snapshot -h command

Run from the command line token-snapshot script.

Input arguments:

• -n, --node-address Server url of node connected to [required]
• -c, --contract Address of token Smart contract [required]
• -f, --from Start block number [optional, default is 0]
• -t, --to End block number [optional, default is latest block]
• -o, --output Name of csv file to save [optional, default is snapshot_at_block_toBlocknumber]
• -m, --mode Snapshot mode [optional, possible values are ARCHIVED and EVENT, default is EVENT]
• -h, --help Show available options and exit

Output:

• _clear_Your_File_Name.csv named csv file with headers ADDRESS, BALANCE