# Receive

This function is the endpoint from which [Relayer](/docs/protocol/relayer.md) obtains the proof and returns it to the src chain.

```solidity
struct QueryResponse {
  bytes32 queryId;
  bytes proof;
}

function receiveQuery(QueryResponse memory response) external;
```

<table><thead><tr><th width="148.5">Field</th><th>Description</th></tr></thead><tbody><tr><td><code>response</code></td><td><code>QueryResponse</code> data</td></tr></tbody></table>

What the `receiveQuery` function does:

* Verify if Gelato's [Relayer](/docs/protocol/relayer.md) executed the function
* Verify the proof and extract the acquisition data
  * Done through the interface by the [Light Client Contract](/docs/protocol/light-client.md)
* Pay fees to the [Relayer](/docs/protocol/relayer.md)
* Return data to the user

To return data to the User Contract, the User Contract must inherit the following interface:

```solidity
interface IReceiver {
    function receiveQuery(
        bytes32 queryId,
        bytes[] memory results,
        QueryType.QueryRequest[] memory queries,
        bytes memory message
    ) external;
}
```


---

# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://futaba.gitbook.io/docs/protocol/gateway/receive.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.