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@subql/node - The Substrate SubQuery SDK, which provides the indexing functionality for Substrate-based chains; @subql/node-core - Core indexing functionality that is chain agnostic; @subql/query - The GraphQL query service for SubQuery projects, allowing you to interact with your indexed data.
While the SubQuery node is indexing the blockchain, the extracted data is stored in an external database instance. A SubQuery node is an implementation that extracts Substrate/Polkadot-based blockchain data per the SubQuery project and saves it into a Postgres database.
@subql-node Description. Indexer service in our @subql toolkit, can load user's subquery then fetch, process and persist to db accordingly. Installation
There are two ways to run a project locally, using Docker or running the individual components using NodeJS services. Read more . Typically this gives the most flexibility and customisability, but obviously requires effort to maintain and monitor.
At its core, SubQuery simplifies the complex process of data indexing and querying. This way, developers can focus on building user-centric applications without being thrown off by the overly complicated ramifications of blockchain data structures. The architecture is designed with flexibility and scalability in mind.
In this guide, we will offer a straightforward approach to indexing the transfer event using the SubQuery tool. To get started, we need to install the SubQuery tool provided by SubQuery itself. This tool allows us to create new subql project and modify the indexing rules as needed.
Boolean - This shows all the current command options for your current version of subql-node. boolean - This allows SubQuery to perform automated schema migrations on project upgrades, see Project Upgrades and Schema Migrations. Positive Integer (default: 100) - This flag allows you to set the batch size in the command line.
Follow our guide to run your own SubQuery local node that you can use to debug, test, and run you own GraphQL server. You're going to need to a Postgres database, a node to extract chain data, and a moderately powerful computer to run the indexer in the background.
A SubQuery node is an implementation that extracts substrate-based blockchain data per the SubQuery project and saves it into a Postgres database. Install SubQuery node globally on your terminal by using Yarn or NPM:
dApp for Node Operators, consumers and delegators interact with SubQuery Network