@langchain/community/dist/document_loaders/web/assemblyai.cjs.map

Third-party integrations for LangChain.js

{"version":3,"file":"assemblyai.cjs","names":["BaseDocumentLoader","AssemblyAI","Document"],"sources":["../../../src/document_loaders/web/assemblyai.ts"],"sourcesContent":["import {\n  AssemblyAI,\n  BaseServiceParams,\n  TranscribeParams,\n  SubtitleFormat,\n  Transcript,\n  TranscriptParagraph,\n  TranscriptSentence,\n  CreateTranscriptParameters,\n} from \"assemblyai\";\nimport { Document } from \"@langchain/core/documents\";\nimport { getEnvironmentVariable } from \"@langchain/core/utils/env\";\nimport { BaseDocumentLoader } from \"@langchain/core/document_loaders/base\";\nimport { AssemblyAIOptions } from \"../../types/assemblyai-types.js\";\n\nexport type * from \"../../types/assemblyai-types.js\";\n\nconst defaultOptions = {\n  userAgent: {\n    integration: { name: \"LangChainJS\", version: \"1.0.1\" },\n  },\n};\n\n/**\n * Base class for AssemblyAI loaders.\n */\nabstract class AssemblyAILoader extends BaseDocumentLoader {\n  protected client: AssemblyAI;\n\n  /**\n   * Create a new AssemblyAI loader.\n   * @param assemblyAIOptions The options to configure the AssemblyAI loader.\n   * Configure the `assemblyAIOptions.apiKey` with your AssemblyAI API key, or configure it as the `ASSEMBLYAI_API_KEY` environment variable.\n   */\n  constructor(assemblyAIOptions?: AssemblyAIOptions) {\n    super();\n    let options = assemblyAIOptions;\n    if (!options) {\n      options = {};\n    }\n    if (!options.apiKey) {\n      options.apiKey = getEnvironmentVariable(\"ASSEMBLYAI_API_KEY\");\n    }\n    if (!options.apiKey) {\n      throw new Error(\"No AssemblyAI API key provided\");\n    }\n\n    this.client = new AssemblyAI({\n      ...defaultOptions,\n      ...options,\n    } as BaseServiceParams);\n  }\n}\n\nabstract class CreateTranscriptLoader extends AssemblyAILoader {\n  protected transcribeParams?: TranscribeParams | CreateTranscriptParameters;\n\n  protected transcriptId?: string;\n\n  /**\n   * Transcribe audio or retrieve an existing transcript by its ID.\n   * @param params The parameters to transcribe audio, or the ID of the transcript to retrieve.\n   * @param assemblyAIOptions The options to configure the AssemblyAI loader.\n   * Configure the `assemblyAIOptions.apiKey` with your AssemblyAI API key, or configure it as the `ASSEMBLYAI_API_KEY` environment variable.\n   */\n  constructor(\n    params: TranscribeParams | CreateTranscriptParameters | string,\n    assemblyAIOptions?: AssemblyAIOptions\n  ) {\n    super(assemblyAIOptions);\n    if (typeof params === \"string\") {\n      this.transcriptId = params;\n    } else {\n      this.transcribeParams = params;\n    }\n  }\n\n  protected async transcribeOrGetTranscript() {\n    if (this.transcriptId) {\n      return await this.client.transcripts.get(this.transcriptId);\n    }\n    if (this.transcribeParams) {\n      let transcribeParams: TranscribeParams;\n      if (\"audio_url\" in this.transcribeParams) {\n        transcribeParams = {\n          ...this.transcribeParams,\n          audio: this.transcribeParams.audio_url,\n        };\n      } else {\n        transcribeParams = this.transcribeParams;\n      }\n\n      return await this.client.transcripts.transcribe(transcribeParams);\n    } else {\n      throw new Error(\"No transcript ID or transcribe parameters provided\");\n    }\n  }\n}\n\n/**\n * Transcribe audio and load the transcript as a document using AssemblyAI.\n */\nexport class AudioTranscriptLoader extends CreateTranscriptLoader {\n  /**\n   * Transcribe audio and load the transcript as a document using AssemblyAI.\n   * @returns A promise that resolves to a single document containing the transcript text\n   * as the page content, and the transcript object as the metadata.\n   */\n  override async load(): Promise<Document<Transcript>[]> {\n    const transcript = await this.transcribeOrGetTranscript();\n\n    return [\n      new Document({\n        pageContent: transcript.text as string,\n        metadata: transcript,\n      }),\n    ];\n  }\n}\n\n/**\n * Transcribe audio and load the paragraphs of the transcript, creating a document for each paragraph.\n */\nexport class AudioTranscriptParagraphsLoader extends CreateTranscriptLoader {\n  /**\n   * Transcribe audio and load the paragraphs of the transcript, creating a document for each paragraph.\n   * @returns A promise that resolves to an array of documents, each containing a paragraph of the transcript.\n   */\n  override async load(): Promise<Document<TranscriptParagraph>[]> {\n    const transcript = await this.transcribeOrGetTranscript();\n    const paragraphsResponse = await this.client.transcripts.paragraphs(\n      transcript.id\n    );\n    return paragraphsResponse.paragraphs.map(\n      (p: TranscriptParagraph) =>\n        new Document({\n          pageContent: p.text,\n          metadata: p,\n        })\n    );\n  }\n}\n\n/**\n * Transcribe audio and load the sentences of the transcript, creating a document for each sentence.\n */\nexport class AudioTranscriptSentencesLoader extends CreateTranscriptLoader {\n  /**\n   * Transcribe audio and load the sentences of the transcript, creating a document for each sentence.\n   * @returns A promise that resolves to an array of documents, each containing a sentence of the transcript.\n   */\n  override async load(): Promise<Document<TranscriptSentence>[]> {\n    const transcript = await this.transcribeOrGetTranscript();\n    const sentencesResponse = await this.client.transcripts.sentences(\n      transcript.id\n    );\n    return sentencesResponse.sentences.map(\n      (p: TranscriptSentence) =>\n        new Document({\n          pageContent: p.text,\n          metadata: p,\n        })\n    );\n  }\n}\n\n/**\n * Transcribe audio and load subtitles for the transcript as `srt` or `vtt` format.\n */\nexport class AudioSubtitleLoader extends CreateTranscriptLoader {\n  /**\n   * Create a new AudioSubtitleLoader.\n   * @param transcribeParams The parameters to transcribe audio.\n   * @param subtitleFormat The format of the subtitles, either `srt` or `vtt`.\n   * @param assemblyAIOptions The options to configure the AssemblyAI loader.\n   * Configure the `assemblyAIOptions.apiKey` with your AssemblyAI API key, or configure it as the `ASSEMBLYAI_API_KEY` environment variable.\n   */\n  constructor(\n    transcribeParams: TranscribeParams | CreateTranscriptParameters,\n    subtitleFormat: SubtitleFormat,\n    assemblyAIOptions?: AssemblyAIOptions\n  );\n\n  /**\n   * Create a new AudioSubtitleLoader.\n   * @param transcriptId The ID of the transcript to retrieve.\n   * @param subtitleFormat The format of the subtitles, either `srt` or `vtt`.\n   * @param assemblyAIOptions The options to configure the AssemblyAI loader.\n   * Configure the `assemblyAIOptions.apiKey` with your AssemblyAI API key, or configure it as the `ASSEMBLYAI_API_KEY` environment variable.\n   */\n  constructor(\n    transcriptId: string,\n    subtitleFormat: SubtitleFormat,\n    assemblyAIOptions?: AssemblyAIOptions\n  );\n\n  /**\n   * Create a new AudioSubtitleLoader.\n   * @param params The parameters to transcribe audio, or the ID of the transcript to retrieve.\n   * @param subtitleFormat The format of the subtitles, either `srt` or `vtt`.\n   * @param assemblyAIOptions The options to configure the AssemblyAI loader.\n   * Configure the `assemblyAIOptions.apiKey` with your AssemblyAI API key, or configure it as the `ASSEMBLYAI_API_KEY` environment variable.\n   */\n  constructor(\n    params: TranscribeParams | CreateTranscriptParameters | string,\n    private subtitleFormat: SubtitleFormat = \"srt\",\n    assemblyAIOptions?: AssemblyAIOptions\n  ) {\n    super(params, assemblyAIOptions);\n    this.subtitleFormat = subtitleFormat;\n  }\n\n  /**\n   * Transcribe audio and load subtitles for the transcript as `srt` or `vtt` format.\n   * @returns A promise that resolves a document containing the subtitles as the page content.\n   */\n  override async load(): Promise<Document[]> {\n    const transcript = await this.transcribeOrGetTranscript();\n    const subtitles = await this.client.transcripts.subtitles(\n      transcript.id,\n      this.subtitleFormat\n    );\n\n    return [\n      new Document({\n        pageContent: subtitles,\n      }),\n    ];\n  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