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---
title: TheGraph network
title: The Graph Network
image: /img/socialCards/thegraph-network.jpg
---

As a dapp developer, retrieving onchain data for your dapp can be challenging
because you will most likely:
# The Graph

1. Consume your RPC provider quota with calls.
2. Need to implement error handling on multiple levels.
3. Define creative strategies to avoid UX impacts when managing a high volume of
data.
Getting historical data on smart contracts can be frustrating when building a
dapp. [The Graph](https://thegraph.com/) offers a powerful way to query smart
contract data with open APIs known as subgraphs. Anyone can create or query
subgraphs, making the data available to the entire ecosystem. The Graph is
powered by hundreds of independent Indexers, enabling your dapp to become truly
decentralized.

The Graph is a decentralized data indexer provider that indexes the Linea
blockchain for you and exposes onchain data through an HTTPS API.
Developers can use 100,000 free queries per month by using The Graph Network.

We run The Graph indexers on Linea to allow you to leverage the power of this
technology.
## Quickstart

:::info[update]
Subgraphs index emitted events by default, but additional functionality can be
added later. A subgraph can be created in just a few minutes by following these
steps:

TheGraph is now live with Linea Mainnet! For more information, take a look at
the official [documentation](https://thegraph.com/docs/en/)
1. Initialize your subgraph
2. Publish your subgraph to The Graph Network
3. Query from your dapp with your unique API key

:::
Here is a step-by-step walkthrough:

## 1. Initialize your subgraph

### Create a subgraph in subgraph studio

Go to the [Subgraph Studio](https://thegraph.com/studio/) and connect your
wallet. Once your wallet is connected, you can begin by clicking "Create a
Subgraph". When choosing a name, it's recommended to use Title Case, including
the subgraph and chain name, e.g., "MyDapp Subgraph Linea".

<div class="center-container">
<div class="img-large">
<img
src="/img/get_started/tooling/data_indexers/the-graph/create-a-subgraph.png"
alt="alt text here"
/>
</div>
</div>

Then, you will land on your subgraph's page. All the CLI commands you need will
be visible on the right side of the page:

<div class="center-container">
<div class="img-large">
<img
src="/img/get_started/tooling/data_indexers/the-graph/cli-commands.png"
alt="alt text here"
/>
</div>
</div>

### Install the Graph CLI⁠

On your local machine, run the following:

```
npm install -g @graphprotocol/graph-cli
```

### Initialize your subgraph⁠

You can copy this directly from your subgraph page to include your specific
subgraph slug:

```
graph init <SUBGRAPH_SLUG>
```

You'll be prompted to provide some info on your subgraph like this:

<div class="center-container">
<div class="img-large">
<img
src="/img/get_started/tooling/data_indexers/the-graph/cli-example.png"
alt="alt text here"
/>
</div>
</div>

Simply verify your contract on the block explorer, and the CLI will
automatically obtain the ABI and set up your subgraph. The default settings will
generate an entity for each event.

## 2. Deploy and publish

### Deploy to Subgraph Studio

First, run these commands:

```bash
$ graph codegen
$ graph build
```

Then, run these to authenticate and deploy your subgraph. You can copy these
commands directly from your subgraph's page in Studio to include your specific
deploy key and subgraph slug:

```bash
$ graph auth <DEPLOY_KEY>
$ graph deploy <SUBGRAPH_SLUG>
```

You will be asked for a version label. You can enter something like v0.0.1, but
you're free to choose the format.

### Test your subgraph

You can test your subgraph by making a sample query in the playground section.
The Details tab will show you an API endpoint. You can use that endpoint to test
from your dapp.

<div class="center-container">
<div class="img-large">
<img
src="/img/get_started/tooling/data_indexers/the-graph/playground.png"
alt="alt text here"
/>
</div>
</div>

### Publish your subgraph to The Graph's decentralized network

Once your subgraph is ready to be put into production, you can publish it to the
decentralized network. On your subgraph's page in Subgraph Studio, click on the
Publish button:

<div class="center-container">
<div class="img-large">
<img
src="/img/get_started/tooling/data_indexers/the-graph/publish-button.png"
alt="alt text here"
/>
</div>
</div>

Before you can query your subgraph, Indexers need to begin serving queries on
it. In order to streamline this process, you can curate your own subgraph using
GRT.

When publishing, you'll see the option to curate your subgraph. As of May 2024,
it is recommended that you curate your own subgraph with at least 3,000 GRT to
ensure that it is indexed and available for querying as soon as possible.

<div class="center-container">
<div class="img-large">
<img
src="/img/get_started/tooling/data_indexers/the-graph/publish-screen.png"
alt="alt text here"
/>
</div>
</div>

> **Note:** The Graph's smart contracts are all on Arbitrum One, even though
> your subgraph is indexing data from Ethereum, BSC or any other
> [supported chain](https://thegraph.com/docs/en/developing/supported-networks/).
## 3. Query your subgraph

Congratulations! You can now query your subgraph on the decentralized network!

To query any subgraph on the decentralized network, pass a GraphQL query into
the subgraph's query URL, which can be found at the top of its Explorer page.

Here's an example from the
[CryptoPunks Ethereum subgraph](https://thegraph.com/explorer/subgraphs/HdVdERFUe8h61vm2fDyycHgxjsde5PbB832NHgJfZNqK)
by Messari:

<div class="center-container">
<div class="img-large">
<img
src="/img/get_started/tooling/data_indexers/the-graph/query-url.png"
alt="alt text here"
/>
</div>
</div>

The query URL for this subgraph is:

`https://gateway-arbitrum.network.thegraph.com/api/`**[api-key]**`/subgraphs/id/HdVdERFUe8h61vm2fDyycgxjsde5PbB832NHgJfZNqK`

Now, you simply need to fill in your own API Key to start sending GraphQL
queries to this endpoint.

### Get your own API key

In Subgraph Studio, you'll see the "API Keys" menu at the top of the page. Here,
you can create API Keys.

<div class="center-container">
<div class="img-large">
<img
src="/img/get_started/tooling/data_indexers/the-graph/api-keys.png"
alt="alt text here"
/>
</div>
</div>

## Appendix

### Sample query

This query shows the most expensive CryptoPunks sold.

```graphql
{
trades(orderBy: priceETH, orderDirection: desc) {
priceETH
tokenId
}
}
```

Passing this into the query URL returns this result:

```
{
"data": {
"trades": [
{
"priceETH": "124457.067524886018255505",
"tokenId": "9998"
},
{
"priceETH": "8000",
"tokenId": "5822"
},
// ...
```

### Sample code

```jsx
const axios = require("axios");

const graphqlQuery = `{
trades(orderBy: priceETH, orderDirection: desc) {
priceETH
tokenId
}
}`;
const queryUrl =
"https://gateway-arbitrum.network.thegraph.com/api/[api-key]/subgraphs/id/HdVdERFUe8h61vm2fDyycHgxjsde5PbB832NHgJfZNqK";

const graphQLRequest = {
method: "post",
url: queryUrl,
data: {
query: graphqlQuery,
},
};

// Send the GraphQL query
axios(graphQLRequest)
.then((response) => {
// Handle the response here
const data = response.data.data;
console.log(data);
})
.catch((error) => {
// Handle any errors
console.error(error);
});
```

### Additional resources

- To explore all the ways you can optimize and customize your subgraph for better
performance, read more about
[creating a subgraph here](https://thegraph.com/docs/en/developing/creating-a-subgraph/).
- To learn more about
[querying data from your subgraph](https://thegraph.com/docs/en/querying/querying-the-graph/).
- [Subgraph Studio](https://thegraph.com/studio/).
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