Etherscan public API to fetch transactions by wallet

fetchtransactionsbywallet.md

Etherscan public API

Overview

There is no documentation at the moment, but there are some rumors. And experemental way I've made sure about few end-points are working good:

Common account info

GET: https://www.etherchain.org/api/account/0xAAAsomeADDR00000000000/ Will return something like that:

{
  "address": "0xAAAsomeADDR00000000000",
  "balance": "0",
  "name": null,
  "firstseen": "2018-02-13T08:25:30.000Z",
  "createdby": "d8e93673v4ghhshd7j9l61adf2b1d43742d8f8629586k6kfjmft98c112b16d6u9",
  "lastseen": "2018-02-20T10:29:08.000Z",
  "blocksmined": 0,
  "unclesmined": 0,
  "nameverified": null
}

Actions interface

But in general there is another end-point which use GET-params-quering approach:

To get balance call: GET: http://api.etherscan.io/api?module=account&action=balance&address=0xAAAsomeADDR00000000000

And you'll get:

{
  "status": "1",
  "message": "OK",
  "result": "0"
}

As we seen there are three important arguments:

• module - it's just like controller or class or lib
• action - action/method
• address - here you should put a wallet

Transactions

To fetch all someone transaction history 'etherscan' offer just a one way: https://etherscan.io/address/0xAAAsomeADDR00000000000 and here you'll see web interface to comfortable read transaction list.. but if you looking for approach to fetch all them as json with your application there is one API:

GET: http://api.etherscan.io/api?module=account&action=txlist&address=0xAAAsomeADDR00000000000&sort=asc

Example of a response:

{
  "status": "1",
  "message": "OK",
  "result": [
    {
      "blockNumber": "------",
      "timeStamp": "-------",
      "hash": "0x-----",
      "nonce": "1",
      "blockHash": "0x--------",
      "transactionIndex": "70",
      "from": "0x----------",
      "to": "0x---------",
      "value": "87000",
      "gas": "636879",
      "gasPrice": "10000000000",
      "isError": "0",
      "txreceipt_status": "1",
      "input": ".. loooong value ...",
      "contractAddress": "0x--------",
      "cumulativeGasUsed": "3190544",
      "gasUsed": "636879",
      "confirmations": "-----"
    },
    ...
  ]
}

Pay attention a value gives in wei and you might convert it to eth before use it in your processes, you albe to do it by formula eth = wei / (10 * 10^17) and validate your result here for example

ฅ(≚ᄌ≚) Have a nice day!