etherscan-fetch.sh

#!/bin/bash
# Illustrates my confusion with how to properly read events via Ethersan API
#
# Script code depends on bash and httpie util (https://httpie.org/)
#
# Based on https://etherscan.io/apis#accounts Get a list of "ERC20 - Token Transfer Events" by Address

#!/bin/bash
# https://etherscan.io/apis#accounts Get a list of "ERC20 - Token Transfer Events" by Address

API=https://api-ropsten.etherscan.io
PAGE=1
OFFSET=10

get_events_address () {
  FROM=${BLOCK}
  TO=${BLOCK}
  echo "get_events_address: CONTRACT=${CONTRACT} -> ${FROM}:${TO}"

  http --print=Hb "${API}/api?module=account&action=tokentx&address=${CONTRACT}&page=${PAGE}&offset=${OFFSET}&sort=asc&startblock=${FROM}&endblock=${TO}"
}

get_events_contractaddress () {
  FROM=${BLOCK}
  TO=${BLOCK}
  echo "get_events_contractaddress: CONTRACT=${CONTRACT} -> ${FROM}:${TO}"

  http --print=Hb "${API}/api?module=account&action=tokentx&contractaddress=${CONTRACT}&page=${PAGE}&offset=${OFFSET}&sort=asc&startblock=${FROM}&endblock=${TO}"
}

get_logs () {
  FROM=${BLOCK}
  TO=${BLOCK}
  echo "get_logs: CONTRACT=${CONTRACT} -> ${FROM}:${TO}"

  http --print=Hb "${API}/api?module=logs&action=getLogs&address=${CONTRACT}&fromBlock=${FROM}&toBlock=${TO}"
}


echo "CASE #1: https://ropsten.etherscan.io/tx/0xa7fc6671038ce1650fb23db087d28f15642acb889834ebdf76be5b0815937ca2"
CONTRACT=0x4da6422d45e8b1535f9dd4ae0971ffd56ab10470
BLOCK=6496137
get_events_address
get_events_contractaddress
get_logs

echo "CASE #2: https://ropsten.etherscan.io/tx/0x9c4a76590d89617ec5e6380cc3c03b3b8a092d3b6d0edf6814ae1003af8b88d6"
CONTRACT=0x8949e85cfa93de23ffa751e7c97ec31207e801f3
BLOCK=6642512
get_events_address
get_events_contractaddress
get_logs