@kvaser/canking-api/doc_md/ipc/functions/getMessageDataBeforeTimestamp.md

CanKing API to communicate with the CanKing service using Node.js.

[**Kvaser CanKing GUI Extensions SDK v7.5.1**](../../README.md)

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[Kvaser CanKing GUI Extensions SDK](../../modules.md) / [ipc](../README.md) / getMessageDataBeforeTimestamp

# Function: getMessageDataBeforeTimestamp()

> **getMessageDataBeforeTimestamp**(`timestampUs`, `maxCount`, `identifiers?`): `Promise`\<[`Frame`](../../models/interfaces/Frame.md)[]\>

Gets message data (frames) before a specific timestamp.

## Parameters

### timestampUs

`number`

The timestamp (in microseconds since start of measurement) before which frames should be retrieved.

### maxCount

`number`

The maximum number of frames to retrieve.

### identifiers?

[`FixedPosFrameIdentifier`](../../models/interfaces/FixedPosFrameIdentifier.md)[]

An optional collection of frame identifiers to filter the results. If not specified, frames
                     for all identifiers will be retrieved.

## Returns

`Promise`\<[`Frame`](../../models/interfaces/Frame.md)[]\>

A promise that resolves with a collection of frames.