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BRC20 Indexer

Project Setup Guide

This guide will walk you through setting up the environment for a Node.js project that connects to a MongoDB database, fetches data from the Ordinals Wallet API, and generates various statistics related to valid inscriptions of a specified brc-20 tick.

Prerequisites

  • Node.js and npm installed
  • MongoDB instance (local or cloud-hosted)

Setup

  1. Install dependencies: Run npm install to install the required packages.

  2. Create a .env file: Create a .env file in your project root directory. The code uses the dotenv package to load environment variables from this file.

  3. Set the DB_URI environment variable: In the .env file, define the DB_URI environment variable. The value should be the connection string for your MongoDB instance.

    For a local MongoDB instance:

    DB_URI=mongodb://localhost:27017/your-db-name

    For MongoDB Atlas, obtain the connection string from the Atlas dashboard.

  4. Fetch and index inscriptions: Run the following commands in order to fetch and index inscriptions from the Ordinals Wallet API: bash

    node indexers/inscriptions.js
node indexers/brc20.js

  5. Generate statistics: Run the scripts/stats.js script to generate and display the desired information:

    node scripts/stats.js your-tick-value

  6. Export data: Run the provided export script to export the data:

    node scripts/export.js your-tick-value

    Replace your-tick-value and your-export-script-file.js with the appropriate tick value and export script filename, respectively.


Note: MongoDB creates collections automatically when you insert data, so you don't need to create any collections beforehand. Ensure your .env file contains the correct DB_URI for connecting to your MongoDB instance.