newrelic/lib/llm-events/google-genai/error-message.js

New Relic agent

/*
 * Copyright 2026 New Relic Corporation. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 */

'use strict'

const LlmErrorMessage = require('../error-message')

/**
 * Google GenAI (Gemini)-specific LLM error message.
 * For `@google/genai`, `cause` does not have the `error` or `status` fields,
 * but it does have `message` with the info we need. Parses the relevant fields
 * from `cause.message` to get `status` and `error`.
 *
 * @augments LlmErrorMessage
 */
module.exports = class GoogleGenAiLlmErrorMessage extends LlmErrorMessage {
  constructor(params = {}) {
    super(params)
    if (params.cause?.message === null) return

    try {
      const jsonStartIndex = params.cause.message.indexOf('{')
      const jsonString = params.cause.message.substring(jsonStartIndex)
      const parsedError = JSON.parse(jsonString)?.error

      if (parsedError?.code) {
        this['http.statusCode'] = parsedError.code
        this['error.code'] = parsedError.code
      }
    } catch (error) {
      this['error.message'] = `failed to parse cause.message: ${error.message}`
    }
  }
}