Subgraph Manifest
Subgraph Manifest Key Points
- The Subgraph Manifest is an important component of the Graph Protocol.
- It is a YAML file that defines how blockchain data is mapped and stored.
- The manifest helps in creating decentralized applications by providing a way to index blockchain data.
- It specifies the blockchain addresses, contract ABIs, and the events to which the subgraph should listen.
- The manifest also details the entities that should be created from these events and the mappings that should be applied.
Subgraph Manifest Definition
The Subgraph Manifest is a fundamental element of the Graph Protocol, an indexing protocol for querying networks like Ethereum and IPFS. It is a YAML file that defines how blockchain data is indexed and stored, thereby facilitating the creation of decentralized applications. The Subgraph Manifest specifies the blockchain addresses, the contract Application Binary Interfaces (ABIs), and the events that the subgraph should respond to. It also details the entities that should be derived from these events and the mappings that need to be applied.
What is a Subgraph Manifest?
A Subgraph Manifest is a YAML file that serves as an integral part of the Graph Protocol. It is used to specify how data from the blockchain is indexed and stored. This file provides the necessary information about which blockchain addresses to track, which contract ABIs to use, and which events to listen to.
Additionally, it details which entities should be created from these events and provides the mappings that should be applied to transform the data into a usable format.
Who Uses a Subgraph Manifest?
A Subgraph Manifest is mainly used by developers working on decentralized applications (dApps). These developers use the Graph Protocol to query data from blockchains like Ethereum and IPFS.
By using a Subgraph Manifest, they can easily index and store data from the blockchain, making it easier to build and run dApps.
When is a Subgraph Manifest Used?
A Subgraph Manifest is used during the development and operation of decentralized applications. It is utilized when developers need to index data from the blockchain, which is a necessary step in the development process.
It is also used during the operation of dApps, as it provides a way to query and retrieve data from the blockchain.
Where is a Subgraph Manifest Used?
The Subgraph Manifest is used in the context of decentralized application development, specifically within the Graph Protocol. The Graph Protocol is a decentralized protocol for indexing and querying data from blockchains, and the Subgraph Manifest is a crucial component of this system.
Why is a Subgraph Manifest Important?
The Subgraph Manifest is important because it allows developers to effectively index and store data from the blockchain. This process is integral to the development and operation of decentralized applications.
Without a Subgraph Manifest, developers would have a much harder time retrieving and managing data from the blockchain, making the development process much slower and more difficult.
How is a Subgraph Manifest Used?
A Subgraph Manifest is used by defining it as a YAML file that specifies how data from the blockchain should be indexed and stored. It provides information about the blockchain addresses to track, the contract ABIs to use, the events to listen to, and the entities to create from these events.
Once the manifest is defined, it is deployed to the Graph Node where it listens to the specified events from the blockchain, applies the specified mappings, and stores the data in a way that it can be easily queried.