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<table> | ||
<tr> | ||
<th>Pyth contract</th> | ||
<td><a href="https://explorer.evm.iota.org/address/0x8D254a21b3C86D32F7179855531CE99164721933">https://explorer.evm.iota.org/address/0x8D254a21b3C86D32F7179855531CE99164721933</a></td> | ||
</tr> | ||
<tr> | ||
<th>Supra Pull Contract</th> | ||
<td><a href="https://explorer.evm.iota.org/address/0x2FA6DbFe4291136Cf272E1A3294362b6651e8517">https://explorer.evm.iota.org/address/0x2FA6DbFe4291136Cf272E1A3294362b6651e8517</a></td> | ||
</tr> | ||
<tr> | ||
<th>Supra Storage Contract</th> | ||
<td><a href="https://explorer.evm.iota.org/address/0xD02cc7a670047b6b012556A88e275c685d25e0c9">https://explorer.evm.iota.org/address/0xD02cc7a670047b6b012556A88e275c685d25e0c9</a></td> | ||
</tr> | ||
<tr> | ||
<th>Supra Pull Contract</th> | ||
<td><a href="https://explorer.evm.iota.org/address/0xD02cc7a670047b6b012556A88e275c685d25e0c9">https://explorer.evm.iota.org/address/0xD02cc7a670047b6b012556A88e275c685d25e0c9</a></td> | ||
</tr> | ||
</table> |
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# Blast API | ||
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[Blast API](https://blastapi.io/) is a decentralized platform that provides reliable and scalable node infrastructure | ||
for accessing blockchain data. It supports multiple blockchain networks, offering seamless integration and | ||
high-performance API endpoints for cross-chain decentralized applications (dApps). | ||
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## Enhanced Performance and Reliability | ||
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Blast API uses a decentralized network of third-party node providers, that ensure high availability and fast response | ||
times. This architecture provides resilient infrastructure services crucial for dApps requiring real-time data access. | ||
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## Multi-Blockchain Support | ||
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Besides IOTA EVM, Blast API supports a wide range of blockchain networks, allowing access to multiple blockchains | ||
through a single unified platform, therefore simplifying the development process and expanding the potential use cases | ||
for dApps. | ||
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## Archival Nodes | ||
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Blast API includes archival nodes, which store all historical transaction data from the blockchain’s | ||
genesis block to the present. This allows developers to query and retrieve past information, which is essential for | ||
applications needing access to comprehensive blockchain histories. | ||
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:::tip Blast API Endpoints | ||
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You can find a full list of Blast API endpoints in the [Networks & Endpoints section](networks-endpoints.mdx). | ||
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::: |
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--- | ||
description: 'Learn about the role of in subgraphs in smart, how they can provide indexed blockchain data to your smart contracts.' | ||
image: /img/logo/WASP_logo_dark.png | ||
tags: | ||
- Blockchain subgraphs | ||
- Smart Contracts | ||
- Shimmer EVM | ||
- IOTA EVM | ||
--- | ||
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# Subgraphs | ||
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:::info tl;dr; | ||
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Subgraphs provide a streamlined way for developers to access blockchain data relevant to their applications, | ||
significantly enhancing developer efficiency and user experience. | ||
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::: | ||
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Subgraphs collect and organize blockchain data by application needs, making it readily accessible for developers. Unlike | ||
blockchains that store data without application context, subgraphs allow you to quickly retrieve information pertinent | ||
to your application and simplify real-time data access, facilitating the creation of | ||
dynamic user interfaces and interactions in your applications. | ||
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## Subgraph Components and Operations | ||
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Subgraphs are built on [GraphQL](https://graphql.org/) APIs, enabling you to query on-chain transaction data | ||
efficiently. | ||
This feature is particularly useful for developers working with complex smart contracts requiring detailed frontend | ||
interfaces. For instance, querying transactions within a specific liquidity pool becomes straightforward with subgraphs. | ||
By defining a schema and indexing event data, you can utilize the generated GraphQL API for effective data querying. | ||
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### Subgraph Manifest | ||
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The manifest details the smart contracts your subgraph indexes, the events it tracks, and how event data is mapped to | ||
queryable entities. This foundational document ensures your subgraph accurately reflects the blockchain data your | ||
application needs. | ||
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### Subgraph Schema | ||
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The schema organizes your subgraph data, defining entities like pools in DeFi applications, and their attributes. It is | ||
crucial for structuring your data to support efficient queries. | ||
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### Subgraph Mappings | ||
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Mappings process incoming blockchain events, specified in your [manifest](#subgraph-manifest), and store them | ||
according to your [schema](#subgraph-schema). | ||
These [AssemblyScript](https://www.assemblyscript.org/) codes are essential for translating raw blockchain data into a | ||
format your application can easily query. | ||
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## Popular Use Cases for Subgraphs | ||
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Subgraphs have found widespread adoption in various blockchain applications, from DeFi to NFTs and DAOs, due to their | ||
ability to index and query data effectively. | ||
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* **Custom Smart Contract Indexing**: Ideal for developers needing to index data for unique smart contracts, especially | ||
those creating frontend interfaces. | ||
* **Decentralized Finance (DeFi)**: Subgraphs provide real-time data on token prices, liquidity, and more, enhancing | ||
DeFi | ||
applications. | ||
* **Non-fungible Tokens (NFTs)**: They allow for efficient querying of NFT ownership, transaction history, and off-chain | ||
data. | ||
* **Decentralized Autonomous Organizations (DAOs)**: Subgraphs facilitate on-chain decision-making and data analysis for | ||
DAOs. | ||
* **Gaming**: They support real-time data access, improving gameplay and in-game transactions. | ||
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## Benefits of Using Subgraphs | ||
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Subgraphs offer a developer-friendly approach to blockchain data indexing, compatible with various blockchains and | ||
enhancing application security and resilience. | ||
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* **Ease of Use**: With familiar tools like AssemblyScript and GraphQL, subgraphs are accessible to developers, | ||
simplifying | ||
the backend data management. | ||
* **Cross-Blockchain Compatibility**: They work across multiple EVM-compatible networks, allowing applications to | ||
operate | ||
seamlessly on different blockchains. | ||
* **Security and Decentralization**: Opting for decentralized querying with subgraphs can reduce reliance on single data | ||
sources, increasing application robustness. | ||
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## Subgraph Providers | ||
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### Goldsky | ||
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[Goldsky](https://goldsky.com/products/subgraphs) [supports IOTA EVM](https://docs.goldsky.com/chains/supported-networks). | ||
You can use their public API endpoints to access subgraph data. | ||
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:::tip Blast API Archival Nodes | ||
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You can use the convenient Blast API on IOTA EVM to access [archival nodes](blastAPI.md#archival-nodes). | ||
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::: | ||
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:::tip Wasp Access Nodes | ||
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You can find more information on how to connect to an access node in the | ||
[#nodesharing channel](https://discordapp.com/channels/397872799483428865/398600007378272256) on the [IOTA Discord](https://discord.iota.org/). | ||
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::: | ||
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docs/build/isc/v1.0.0-rc.6/docs/_partials/_oracles_contract_data.md
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<table> | ||
<tr> | ||
<th>Pyth contract</th> | ||
<td><a href="https://explorer.evm.iota.org/address/0x8D254a21b3C86D32F7179855531CE99164721933">https://explorer.evm.iota.org/address/0x8D254a21b3C86D32F7179855531CE99164721933</a></td> | ||
</tr> | ||
<tr> | ||
<th>Supra Pull Contract</th> | ||
<td><a href="https://explorer.evm.iota.org/address/0x2FA6DbFe4291136Cf272E1A3294362b6651e8517">https://explorer.evm.iota.org/address/0x2FA6DbFe4291136Cf272E1A3294362b6651e8517</a></td> | ||
</tr> | ||
<tr> | ||
<th>Supra Storage Contract</th> | ||
<td><a href="https://explorer.evm.iota.org/address/0xD02cc7a670047b6b012556A88e275c685d25e0c9">https://explorer.evm.iota.org/address/0xD02cc7a670047b6b012556A88e275c685d25e0c9</a></td> | ||
</tr> | ||
<tr> | ||
<th>Supra Pull Contract</th> | ||
<td><a href="https://explorer.evm.iota.org/address/0xD02cc7a670047b6b012556A88e275c685d25e0c9">https://explorer.evm.iota.org/address/0xD02cc7a670047b6b012556A88e275c685d25e0c9</a></td> | ||
</tr> | ||
</table> |
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