Getting Started

Introduction

Vision and Mission

For Users

Nodle IoT

Nodle App

Nodle Client

Nodle on zkSync Era

Nodle Portal

NODL Token

Nodle Explorer

Participate

For Developers

SubQuery Indexer

Nodle APIs

Nodle SDK

Nodle Android SDK

Nodle iOS SDK

Smart Missions

More Info

Appendix

Glossary

Indexers

Overview

Indexers, in a broad context, play a fundamental role in organizing and optimizing data retrieval within various systems. These tools act as navigational aids, allowing efficient access to specific information by creating structured indexes. In the realm of databases and information management, indexers enhance query performance by creating a roadmap to swiftly locate data entries.

In the context of blockchain and dApps (decentralized applications), indexers go beyond traditional databases, facilitating streamlined access to on-chain data. This includes transaction histories, smart contract states, and event logs. In the dynamic and decentralized world of blockchain, indexers contribute to the efficiency of data queries, supporting real-time updates and ensuring the seamless functionality of diverse applications and platforms.

There are several indexer solutions available, each offering different levels of decentralization, ease of development, and performance for you to consider. These solutions serve as intermediaries to assist in indexing the Nodle network.

Here, we’ll discuss one of the commonly used blockchain indexers, SubQuery.

SubQuery

Introduction

SubQuery is a leading blockchain data indexer that provides developers with fast, flexible, universal, open source, and decentralized APIs for Web3 projects. SubQuery SDK allows developers to get rich indexed data and build intuitive and immersive decentralized applications in a faster and more efficient way.

SubQuery supports 100+ ecosystems including:

• Nodle
• Polkadot
• Cosmos
• Ethereum
• Polygon
• Algorand
• NEAR
• Avalanche

Advantages of SubQuery

SubQuery's competitive edge lies in the capacity to consolidate data, not just within a single blockchain but across multiple blockchains within a unified project.

This facilitates the development of comprehensive dashboard analytics, cross-chain block scanners, or initiatives aimed at indexing XCM messages across parachains.

Other advantages include:

• Superior performance with multiple RPC endpoint configurations
• Multi-worker capabilities
• Configurable caching architecture

To learn more, refer to our documentation.

Running and Hosting Your Nodle SubQuery APIs

SubQuery is open-source, meaning you have the freedom to run it in any of the following three ways:

1. Locally on your own computer (or a cloud provider of your choosing). View the instructions on how to run SubQuery locally.
2. You can publish it to SubQuery's enterprise-level Managed Service, where we'll host your SubQuery project in production ready services for mission critical data with zero-downtime blue/green deployments. There even is a generous free tier. Find out how.
3. You can publish it to the decentralized SubQuery Network, the most open, performant, reliable, and scalable data service for dApp developers. The SubQuery Network indexes and services data to the global community in an incentivized and verifiable way and supports Nodle from launch.

Useful Resources

SubQuery Documentation:

• SubQuery Academy
• Quick Start Guide: 1. Create a New Project
• Nodle Starter Project

On this page

• Indexers
• Overview
• SubQuery
• Introduction
• Advantages of SubQuery
• Running and Hosting Your Nodle SubQuery APIs
• Useful Resources