Darius Baruo
Jul 07, 2026 20:31
Perceive the important thing variations between Subgraphs and Substreams, The Graph’s blockchain information options, and when to make use of every for scalability and efficiency.
Blockchain builders working inside The Graph ecosystem face an important determination relating to dealing with on-chain information: ought to they go for Subgraphs or Substreams? Each instruments are designed to extract, course of, and ship blockchain information effectively, however their use instances differ considerably. Understanding these variations is important for choosing the best answer as initiatives scale.
Subgraphs: The Spine for Frontend Functions
Subgraphs, a cornerstone of The Graph since its inception, permit builders to outline on-chain occasion handlers and expose structured information through GraphQL APIs. This makes them a perfect answer for dApps, analytics dashboards, and any utility requiring real-time state queries. Subgraphs combination historic and present blockchain information right into a persistent listed state, simplifying complicated relational queries equivalent to token possession or liquidity pool compositions.
Their structure depends on JSON-RPC nodes for information extraction and makes use of AssemblyScript to filter and remodel the info earlier than loading it right into a PostgreSQL database. With over 15,000 Subgraphs already printed, builders can leverage a wealthy ecosystem of templates and tooling to speed up deployment.
For many small-to-medium initiatives, Subgraphs are the go-to answer, providing a low-cost and user-friendly path to ship blockchain-based purposes.
Substreams: Constructed for Excessive-Throughput and Scalability
Substreams, launched extra lately, signify a shift towards high-performance, parallelized information pipelines. In contrast to Subgraphs, which course of information sequentially, Substreams allow the extraction and transformation of blockchain information in parallel, dramatically lowering indexing occasions. As an example, syncing historic information on Substreams might be as much as 100 occasions sooner than with Subgraphs, making them notably fitted to high-throughput environments equivalent to Solana, AI workflows, and buying and selling engines.
Written in Rust and compiled to WebAssembly (WASM), Substreams supply flexibility in output locations, permitting information to be “sinked” into varied databases like PostgreSQL or ClickHouse, and even streamed immediately into analytics platforms like Kafka. This makes them a wonderful selection for builders engaged on real-time information analytics, machine studying purposes, or any use case requiring heavy server-side transformations.
When to Improve to Substreams
Subgraphs work nicely till initiatives hit sure scaling thresholds. Builders ought to take into account migrating to Substreams when:
- Sync occasions for Subgraphs turn out to be prohibitive, measuring days as a substitute of hours.
- They’re indexing high-throughput chains like Solana or Binance Sensible Chain.
- Knowledge must be built-in into techniques past a GraphQL API, equivalent to a knowledge warehouse or buying and selling engine.
- Heavy server-side transformations or exact historic backfills are required.
Because of instruments like substreams-convert, migrating from Subgraphs to Substreams not means ranging from scratch. This open-source instrument automates a lot of the interpretation course of, permitting builders to hold ahead their current Subgraph investments with minimal overhead.
The Graph’s Function in Blockchain Knowledge Infrastructure
The Graph has positioned itself as a pacesetter in blockchain information companies, evidenced by its skill to serve over 1.27 trillion queries throughout 60+ networks as of early 2026. Its 2026 technical roadmap emphasizes Subgraphs’ compatibility with AI and Substreams’ development in institutional-grade use instances, reflecting its twin concentrate on accessibility and scalability.
The native GRT token, priced at $0.0178 as of July 7, 2026, underpins this decentralized information ecosystem, incentivizing impartial Indexers who energy the community. As demand for environment friendly blockchain information options grows, each Subgraphs and Substreams are positioned to play key roles in enabling the following era of decentralized purposes and analytics.
Selecting the Proper Instrument
Normally, the selection between Subgraphs and Substreams will rely upon the particular wants of your venture:
- Use Subgraphs: For frontend purposes, relational information, and smaller initiatives with real-time state queries.
- Use Substreams: For top-throughput indexing, real-time analytics, AI/ML pipelines, and large-scale information transformations.
Removed from being competing applied sciences, these instruments are complementary parts of The Graph’s ecosystem. Builders can begin with Subgraphs for simplicity and scale into Substreams as their information wants develop, guaranteeing efficiency and suppleness at each stage of improvement.
Picture supply: Shutterstock
