standardize

.env.sample

@@ -0,0 +1,2 @@
+CHAINSTACK_FULL_NODE="CHAINSTACK_FULL_NODE_URL"
+CHAINSTACK_ARCHIVE_NODE="CHAINSTACK_ARCHIVE_NODE_URL"

.gitignore

@@ -1 +1,120 @@
-node_modules/
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+.env.production
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# End of https://mrkandreev.name/snippets/gitignore-generator/#Node

README.md

@@ -1,14 +1,102 @@
-# Full vs Archive Node query
+<img width="1200" alt="Labs" src="https://user-images.githubusercontent.com/99700157/213291931-5a822628-5b8a-4768-980d-65f324985d32.png">
 
-This repository contains the javascript version to query common state functions such as `getBalance()` and custom smart contract functions such as `symbol()` (ERC-20) from a given block in a programmatic way, switching between full and archive nodes when needed.
+<p>
+ <h3 align="center">Chainstack is the leading suite of services connecting developers with Web3 infrastructure</h3>
+</p>
 
-For the full walkthrough, see [Querying full and archive Ethereum nodes with JavaScript](https://chainstack.com/querying-full-and-archive-evm-nodes-with-javascript/).
+<p align="center">
+  <a target="_blank" href="https://chainstack.com/build-better-with-ethereum/"><img src="https://github.com/soos3d/blockchain-badges/blob/main/protocols_badges/Ethereum.svg" /></a>&nbsp;  
+  <a target="_blank" href="https://chainstack.com/build-better-with-bnb-smart-chain/"><img src="https://github.com/soos3d/blockchain-badges/blob/main/protocols_badges/BNB.svg" /></a>&nbsp;
+  <a target="_blank" href="https://chainstack.com/build-better-with-polygon/"><img src="https://github.com/soos3d/blockchain-badges/blob/main/protocols_badges/Polygon.svg" /></a>&nbsp;
+  <a target="_blank" href="https://chainstack.com/build-better-with-avalanche/"><img src="https://github.com/soos3d/blockchain-badges/blob/main/protocols_badges/Avalanche.svg" /></a>&nbsp;
+  <a target="_blank" href="https://chainstack.com/build-better-with-fantom/"><img src="https://github.com/soos3d/blockchain-badges/blob/main/protocols_badges/Fantom.svg" /></a>&nbsp;
+</p>
 
-### Instructions
+<p align="center">
+  • <a target="_blank" href="https://chainstack.com/">Homepage</a> •
+  <a target="_blank" href="https://chainstack.com/protocols/">Supported protocols</a> •
+  <a target="_blank" href="https://chainstack.com/blog/">Chainstack blog</a> •
+  <a target="_blank" href="https://docs.chainstack.com/quickstart/">Chainstack docs</a> •
+  <a target="_blank" href="https://docs.chainstack.com/quickstart/">Blockchain API reference</a> •
+  <a target="_blank" href="https://console.chainstack.com/user/account/create">Start for free</a> •
+</p>
 
+# Querying full and archive EVM nodes with JavaScript
+
+This project allows the retrieval of historical data from the blockchain programmatically, switching between a full and archive node provider when necessary.
+
+See the full tutorial on the Chainstack blog:
+* [Querying full and archive Ethereum nodes with JavaScript](https://chainstack.com/querying-full-and-archive-evm-nodes-with-javascript/)
+
+## Project details
+
+This repository holds the JavaScript version of a tool to query common state functions. Some essential functions include getting an address balance and storage at a given position, a contract bytecode, or even the whole transactions included on a given block.
+
+This tool queries the blockchain using the web3 and inquirer libraries for JavaScript. 
+
+## Quick start
+
+### Clone this repository
+
+```sh
+git clone https://github.com/yieniggu/chainstack-full-vs-archive-query-js.git
 ```
-    git clone https://github.com/yieniggu/chainstack-full-vs-archive-query-js.git
-    cd chainstack-full-vs-archive-query-js
-    npm i
-    node index
+
+### Install dependencies
+
+```sh
+npm ci
+```
+
+> Use `npm ci` to launch a `clean install` of the dependencies, this will install the same version as in the `package.json` file.
+
+### edit the .env.sample file
+
+Add your RPC node URLs and rename the file to `.env`.
+
+```env
+CHAINSTACK_FULL_NODE="CHAINSTACK_FULL_NODE_URL"
+CHAINSTACK_ARCHIVE_NODE="CHAINSTACK_ARCHIVE_NODE_URL"
+```
+
+### Run the program
+
+```sh
+npm run start
+```
+
+## Prerequisites
+
+* Node.js: ^16.17.0— [install Node](https://nodejs.org/en/download/)
+* A full and archive node RPC endpoints.
+
+Deploy a full and archive node with Chainstack:
+
+1. [Sign up with Chainstack](https://console.chainstack.com/user/account/create).  
+1. [Deploy a node](https://docs.chainstack.com/platform/join-a-public-network).  
+1. [View node access and credentials](https://docs.chainstack.com/platform/view-node-access-and-credentials). 
+
+## Dependencies
+
+* dotenv: ^16.0.3
+* inquirer: ^8.2.4
+* web3.js: ^1.7.4
+
+## Install
+
+Clone this repository:
+
+```sh
+git clone https://github.com/yieniggu/chainstack-full-vs-archive-query-js.git
+```
+
+Install the dependencies in the project's directory:
+
+```sh
+cd query-full-and-archive-nodes-javascript
+```
+
+```sh
+npm ci
 ```
+> Use `npm ci` to launch a `clean install` of the dependencies, this will install the same version as in the `package.json` file.

package.json

@@ -1,15 +1,16 @@
 {
   "name": "query-full-archive",
   "version": "1.0.0",
-  "description": "",
+  "description": "This tool allows the retrieval of historical data from the blockchain programmatically, switching between a full and archive node provider when necessary.",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "start" : "node index"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "dotenv": "^16.0.3",
     "inquirer": "^8.2.4",
     "web3": "^1.7.4"
   }

src/utils.js

@@ -1,13 +1,10 @@
 // Initial Config
 const Web3 = require("web3");
+require('dotenv').config()
 
 // Init Full and Archive providers
-const fullNodeProvider = new Web3(
-  "https://nd-479-987-415.p2pify.com/271156373b36700f7576cf46e68b1262"
-);
-const archiveNodeProvider = new Web3(
-  "https://nd-072-228-848.p2pify.com/3f7a80739e2f6739cae0256a2660725b"
-);
+const fullNodeProvider = new Web3(process.env.CHAINSTACK_FULL_NODE);
+const archiveNodeProvider = new Web3(process.env.CHAINSTACK_ARCHIVE_NODE);
 
 const ZERO_ADDRESS = "0x0000000000000000000000000000000000000000";