---
id: graphql
title: GraphQL
---

ToolJet can establish connections with GraphQL endpoints, enabling the execution of queries and mutations.

## Connection

To establish a connection with the GraphQL global datasource, you can either click on the **Add new global datasource** button located on the query panel or navigate to the **[Global Datasources](/docs/data-sources/overview)** page through the ToolJet dashboard.

<div style={{textAlign: 'center'}}>

<img className="screenshot-full" src="/img/datasource-reference/graphql/graphgds-v2.png" alt="ToolJet - Data source - REST API" />

</div>

ToolJet requires the following to connect to a GraphQL datasource:

- **URL**: URL of the GraphQL endpoint
- **Headers**: Any headers the GraphQL source requires
- **URL parameters**: Additional query string parameters
- __Authentication Type__: The method of authentication to use with GraphQL requests. Supported Types: None, Basic, Bearer, and OAuth 2.0
  - **Basic**: Requires Username and Password
  - **Bearer**: Requires a token, typically a JSON Web Token (JWT), to grant access
  - **OAuth 2.0**: The OAuth 2.0 protocol mandates the provision of the following parameters: access token URL, access token URL custom headers, client ID, client secret, scopes, custom query parameters, authorization URL, custom authentication parameters, and client authentication.

## Querying GraphQL

Click on **`+Add`** button of the query manager at the bottom panel of the editor and select the GraphQL global datasource added in previous step.

### Required Parameters:
- **Query**

### Optional Parameters
- **Variable**
- **Headers**

<div style={{textAlign: 'center'}}>

<img className="screenshot-full" src="/img/datasource-reference/graphql/headers.png" alt="ToolJet - Data source - GraphQl"/>

</div>


Click on the **Create** button to create the query or Click on the **Run** button to create and trigger the query.

:::tip
Query results can be transformed using transformations. Read our transformations documentation to see how: [link](/docs/tutorial/transformations)
:::

## Metadata

Metadata is additional information about the data returned by the GraphQL query. It includes details such as the request URL, method, headers, and response status code. You can access this information using the `metadata` object. REST API. The metadata can be accessed within queries and components using the `{{queries.<queryname>.metadata}}` syntax.

:::info
While accessing the properties of the metadata object, which contains a hyphen, you can use the bracket notation. For example, to access the `content-length` property, you can use `{{queries.graphql1.metadata.request.headers["content-length"]}}` or `{{queries.graphql1.metadata.request.headers."content-length"}}`.
:::

<details>
<summary>**Example Metadata**</summary>

```json
{
  "request": {
    "url": "https://swapi-graphql.netlify.app/.netlify/functions/index?testParam=valueParam",
    "method": "POST",
    "headers": {
      "user-agent": "got (https://github.com/sindresorhus/got)",
      "header1key": "Header1value",
      "content-type": "application/json",
      "content-length": "275",
      "accept-encoding": "gzip, deflate, br"
    },
    "params": {
      "testParam": "valueParam"
    }
  },
  "response": {
    "statusCode": 200,
    "headers": {
      "access-control-allow-origin": "*",
      "age": "0",
      "cache-control": "no-cache",
      "cache-status": ""Netlify Durable"; fwd=method, "Netlify Edge"; fwd=method",
      "content-encoding": "br",
      "content-length": "840",
      "content-type": "application/json; charset=utf-8",
      "date": "Fri, 13 Sep 2024 06:38:27 GMT",
      "etag": "W/"18ad-ZANyCoLSJjHWg3k1SaMp6gH/gdQ"",
      "netlify-vary": "query",
      "server": "[REDACTED]",
      "strict-transport-security": "max-age=31536000; includeSubDomains; preload",
      "vary": "Accept-Encoding",
      "x-nf-request-id": "01J7N1NG25V8Q9GY51RH11ACTN",
      "x-powered-by": "Express",
      "connection": "close"
    }
  }
}
```
</details>