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Version: 2.0.0

Documentation

Overview​

The LLMWhispererClientV2 class is a client for interacting with the version 2 of the LLMWhisperer API. This class provides functionality for making API requests to process files, retrieve usage information, check the status of operations, and manage webhooks.

Environment Variables​

VariableDescription
LLMWHISPERER_BASE_URL_V2The base URL of the API. When left undefined, default https://llmwhisperer-api.us-central.unstract.com/api/v2 is used
LLMWHISPERER_API_KEYThe API key to use for authenticating requests to the API.
LLMWHISPERER_LOGGING_LEVELThe logging level to use. Possible values are error, warn, info, debug

All environment variables are optional. If LLMWHISPERER_API_KEY is not set, you must provide the API key when creating a new client. The environment variables can be overridden by providing the values in the client constructor.

Constructor​

LLMWhispererClientV2({ baseUrl = "", apiKey = "", loggingLevel = "" } = {})​

Parameters:​
  • baseUrl (string, optional): The base URL of the API. If not provided, the class uses process.env.LLMWHISPERER_BASE_URL_V2 or the default URL https://llmwhisperer-api.us-central.unstract.com/api/v2.
  • apiKey (string, optional): The API key used for authentication. If not provided, the class uses process.env.LLMWHISPERER_API_KEY.
  • loggingLevel (string, optional): The logging level for the logger, such as debug, info, warn, or error. Defaults to debug if not provided.
Properties:​
  • baseUrl (string): The base URL for the API.
  • apiKey (string): The API key used for authentication.
  • loggingLevel (string): The logging level for the client.
  • logger (Object): A logger instance created using the winston logging library.

Methods​

getUsageInfo()​

Description:​

This method retrieves usage information from the API.

Returns:​

  • A Promise<Object> containing the usage information.

Throws:​

  • LLMWhispererClientException: If an error occurs during the API call.

whisper(options)​

Description:​

This method processes a file or URL using the LLMWhisperer API.

Parameters:​

  • filePath (string, optional): The path to the file to be processed.
  • url (string, optional): The URL of the file to be processed.
  • mode (string, optional): The processing mode, e.g., high_quality. Defaults to high_quality.
  • outputMode (string, optional): The mode of output, e.g., line-printer. Defaults to line-printer.
  • pageSeparator (string, optional): The separator for pages in the output. Defaults to <<<.
  • pagesToExtract (string, optional): Specific pages to extract. Defaults to an empty string.
  • medianFilterSize (number, optional): The size of the median filter. Defaults to 0.
  • gaussianBlurRadius (number, optional): The radius of the Gaussian blur. Defaults to 0.
  • lineSplitterTolerance (number, optional): The tolerance for splitting lines. Defaults to 0.4.
  • horizontalStretchFactor (number, optional): The horizontal stretch factor. Defaults to 1.0.
  • markVerticalLines (boolean, optional): Whether to mark vertical lines. Defaults to false.
  • markHorizontalLines (boolean, optional): Whether to mark horizontal lines. Defaults to false.
  • lineSplitterStrategy (string, optional): The strategy for splitting lines, e.g., left-priority. Defaults to left-priority.
  • lang (string, optional): The language to use, e.g., eng. Defaults to eng.
  • tag (string, optional): The tag to use. Defaults to default.
  • filename (string, optional): The filename to use.
  • webhookMetadata (string, optional): Metadata for the webhook.
  • useWebhook (string, optional): Whether to use a webhook.
  • waitForCompletion (boolean, optional): Whether to wait for the operation to complete. Defaults to false.
  • waitTimeout (number, optional): The timeout for waiting, in seconds. Defaults to 180.

Returns:​

  • A Promise<Object> containing the response from the whisper API.

Throws:​

  • LLMWhispererClientException: If an error occurs during the request.

whisperStatus(whisperHash)​

Description:​

This method retrieves the status of a whisper operation.

Parameters:​

  • whisperHash (string): The hash of the whisper operation whose status is to be retrieved.

Returns:​

  • A Promise<Object> containing the status of the whisper operation.

Throws:​

  • LLMWhispererClientException: If an error occurs during the request.

whisperRetrieve(whisperHash)​

Description:​

This method retrieves the result of a whisper operation.

Parameters:​

  • whisperHash (string): The hash of the whisper operation whose result is to be retrieved.

Returns:​

  • A Promise<Object> containing the result of the whisper operation.

Throws:​

  • LLMWhispererClientException: If an error occurs during the request.

registerWebhook(webhookUrl, authToken, webhookName)​

Description:​

This method registers a webhook.

Parameters:​

  • webhookUrl (string): The URL of the webhook.
  • authToken (string): The authentication token for the webhook.
  • webhookName (string): The name of the webhook.

Returns:​

  • A Promise<Object> containing the response from the webhook registration.

Throws:​

  • LLMWhispererClientException: If an error occurs during the request.

getWebhookDetails(webhookName)​

Description:​

This method retrieves the details of a registered webhook.

Parameters:​

  • webhookName (string): The name of the webhook.

Returns:​

  • A Promise<Object> containing the details of the webhook.

Throws:​

  • LLMWhispererClientException: If an error occurs during the request.

getHighlightRect​

Description:​

Given the line metadata and the line number, this function returns the bounding box of the line

Parameters​

  • lineMetadata (Array): An array containing the line metadata returned by the LLMWhisperer API. It typically includes information such as page number, line position, line height, and original document height.
  • targetWidth (number): The width of the target image or page in the UI where the line is being highlighted.
  • targetHeight (number): The height of the target image or page in the UI.

Returns​

  • Object: An object containing the bounding box coordinates of the line in the following format:
    • page (number): The page number where the line is located.
    • x1 (number): The x-coordinate of the top-left corner of the bounding box (fixed at 0).
    • y1 (number): The y-coordinate of the top-left corner, scaled based on the target height.
    • x2 (number): The x-coordinate of the bottom-right corner (equal to targetWidth).
    • y2 (number): The y-coordinate of the bottom-right corner, scaled based on the target height.

Exception Handling​

LLMWhispererClientException​

Description:​

This is a custom exception class used by the LLMWhispererClientV2 class to handle errors during API interactions.

Constructor Parameters:​

  • message (string): The error message.
  • statusCode (number): The HTTP status code related to the error.

Methods:​

  • errorMessage(): Returns the error message.