@langchain/community/dist/embeddings/tencent_hunyuan/base.cjs.map

Third-party integrations for LangChain.js

{"version":3,"file":"base.cjs","names":["Embeddings"],"sources":["../../../src/embeddings/tencent_hunyuan/base.ts"],"sourcesContent":["import { getEnvironmentVariable } from \"@langchain/core/utils/env\";\nimport { Embeddings, type EmbeddingsParams } from \"@langchain/core/embeddings\";\nimport { sign } from \"../../utils/tencent_hunyuan/common.js\";\n\n/**\n * Interface that extends EmbeddingsParams and defines additional\n * parameters specific to the TencentHunyuanEmbeddingsParams class.\n */\nexport interface TencentHunyuanEmbeddingsParams extends EmbeddingsParams {\n  /**\n   * Tencent Cloud API Host.\n   * @default \"hunyuan.tencentcloudapi.com\"\n   */\n  host?: string;\n\n  /**\n   * SecretID to use when making requests, can be obtained from https://console.cloud.tencent.com/cam/capi.\n   * Defaults to the value of `TENCENT_SECRET_ID` environment variable.\n   */\n  tencentSecretId?: string;\n\n  /**\n   * Secret key to use when making requests, can be obtained from https://console.cloud.tencent.com/cam/capi.\n   * Defaults to the value of `TENCENT_SECRET_KEY` environment variable.\n   */\n  tencentSecretKey?: string;\n}\n\n/**\n * Interface that extends EmbeddingsParams and defines additional\n * parameters specific to the TencentHunyuanEmbeddingsParams class.\n */\ninterface TencentHunyuanEmbeddingsParamsWithSign extends TencentHunyuanEmbeddingsParams {\n  /**\n   * Tencent Cloud API v3 sign method.\n   */\n  sign: sign;\n}\n\n/**\n * Interface representing the embedding data.\n * See https://cloud.tencent.com/document/api/1729/101838#EmbeddingData.\n */\ninterface EmbeddingData {\n  Embedding: number[];\n  Index: number;\n  Object: string;\n}\n\n/**\n * Interface representing the usage of tokens in text embedding.\n * See https://cloud.tencent.com/document/api/1729/101838#EmbeddingUsage.\n */\ninterface EmbeddingUsage {\n  TotalTokens: number;\n  PromptTokens: number;\n  CompletionTokens?: number;\n}\n\n/**\n * Interface representing a error response from Tencent Hunyuan embedding.\n * See https://cloud.tencent.com/document/product/1729/102832\n */\ninterface Error {\n  Code: string;\n  Message: string;\n}\n\n/**\n * Interface representing a response from Tencent Hunyuan embedding.\n * See https://cloud.tencent.com/document/product/1729/102832\n */\ninterface GetEmbeddingResponse {\n  Response: {\n    Error?: Error;\n    Data: EmbeddingData[];\n    Usage: EmbeddingUsage;\n    RequestId: string;\n  };\n}\n\n/**\n * Class for generating embeddings using the Tencent Hunyuan API.\n */\nexport class TencentHunyuanEmbeddings\n  extends Embeddings\n  implements TencentHunyuanEmbeddingsParams\n{\n  tencentSecretId?: string;\n\n  tencentSecretKey?: string;\n\n  host = \"hunyuan.tencentcloudapi.com\";\n\n  sign: sign;\n\n  constructor(fields?: TencentHunyuanEmbeddingsParamsWithSign) {\n    super(fields ?? {});\n\n    this.tencentSecretId =\n      fields?.tencentSecretId ?? getEnvironmentVariable(\"TENCENT_SECRET_ID\");\n    if (!this.tencentSecretId) {\n      throw new Error(\"Tencent SecretID not found\");\n    }\n\n    this.tencentSecretKey =\n      fields?.tencentSecretKey ?? getEnvironmentVariable(\"TENCENT_SECRET_KEY\");\n    if (!this.tencentSecretKey) {\n      throw new Error(\"Tencent SecretKey not found\");\n    }\n\n    this.host = fields?.host ?? this.host;\n    if (!fields?.sign) {\n      throw new Error(\"Sign method undefined\");\n    }\n    this.sign = fields?.sign;\n  }\n\n  /**\n   * Private method to make a request to the TogetherAI API to generate\n   * embeddings. Handles the retry logic and returns the response from the API.\n   * @param {string} input The input text to embed.\n   * @returns Promise that resolves to the response from the API.\n   * @TODO Figure out return type and statically type it.\n   */\n  private async embeddingWithRetry(\n    input: string\n  ): Promise<GetEmbeddingResponse> {\n    const request = { Input: input };\n    const timestamp = Math.trunc(Date.now() / 1000);\n    const headers = {\n      \"Content-Type\": \"application/json\",\n      \"X-TC-Action\": \"GetEmbedding\",\n      \"X-TC-Version\": \"2023-09-01\",\n      \"X-TC-Timestamp\": timestamp.toString(),\n      Authorization: \"\",\n    };\n\n    headers.Authorization = this.sign(\n      this.host,\n      request,\n      timestamp,\n      this.tencentSecretId ?? \"\",\n      this.tencentSecretKey ?? \"\",\n      headers\n    );\n\n    return this.caller.call(async () => {\n      const response = await fetch(`https://${this.host}`, {\n        headers,\n        method: \"POST\",\n        body: JSON.stringify(request),\n      });\n\n      if (response.ok) {\n        return response.json();\n      }\n\n      throw new Error(\n        `Error getting embeddings from Tencent Hunyuan. ${JSON.stringify(\n          await response.json(),\n          null,\n          2\n        )}`\n      );\n    });\n  }\n\n  /**\n   * Method to generate an embedding for a single document. Calls the\n   * embeddingWithRetry method with the document as the input.\n   * @param {string} text Document to generate an embedding for.\n   * @returns {Promise<number[]>} Promise that resolves to an embedding for the document.\n   */\n  async embedQuery(text: string): Promise<number[]> {\n    const { Response } = await this.embeddingWithRetry(text);\n    if (Response?.Error?.Message) {\n      throw new Error(`[${Response.RequestId}] ${Response.Error.Message}`);\n    }\n    return Response.Data[0].Embedding;\n  }\n\n  /**\n   * Method that takes an array of documents as input and returns a promise\n   * that resolves to a 2D array of embeddings for each document. It calls\n   * the embedQuery method for each document in the array.\n   * @param documents Array of documents for which to generate embeddings.\n   * @returns Promise that resolves to a 2D array of embeddings for each input document.\n   */\n  embedDocuments(documents: string[]): Promise<number[][]> {\n    return Promise.all(documents.map((doc) => this.embedQuery(doc)));\n  }\n}\n"],"mappings":";;;;;;;AAoFA,IAAa,2BAAb,cACUA,2BAAAA,WAEV;CACE;CAEA;CAEA,OAAO;CAEP;CAEA,YAAY,QAAiD;AAC3D,QAAM,UAAU,EAAE,CAAC;AAEnB,OAAK,kBACH,QAAQ,oBAAA,GAAA,0BAAA,wBAA0C,oBAAoB;AACxE,MAAI,CAAC,KAAK,gBACR,OAAM,IAAI,MAAM,6BAA6B;AAG/C,OAAK,mBACH,QAAQ,qBAAA,GAAA,0BAAA,wBAA2C,qBAAqB;AAC1E,MAAI,CAAC,KAAK,iBACR,OAAM,IAAI,MAAM,8BAA8B;AAGhD,OAAK,OAAO,QAAQ,QAAQ,KAAK;AACjC,MAAI,CAAC,QAAQ,KACX,OAAM,IAAI,MAAM,wBAAwB;AAE1C,OAAK,OAAO,QAAQ;;;;;;;;;CAUtB,MAAc,mBACZ,OAC+B;EAC/B,MAAM,UAAU,EAAE,OAAO,OAAO;EAChC,MAAM,YAAY,KAAK,MAAM,KAAK,KAAK,GAAG,IAAK;EAC/C,MAAM,UAAU;GACd,gBAAgB;GAChB,eAAe;GACf,gBAAgB;GAChB,kBAAkB,UAAU,UAAU;GACtC,eAAe;GAChB;AAED,UAAQ,gBAAgB,KAAK,KAC3B,KAAK,MACL,SACA,WACA,KAAK,mBAAmB,IACxB,KAAK,oBAAoB,IACzB,QACD;AAED,SAAO,KAAK,OAAO,KAAK,YAAY;GAClC,MAAM,WAAW,MAAM,MAAM,WAAW,KAAK,QAAQ;IACnD;IACA,QAAQ;IACR,MAAM,KAAK,UAAU,QAAQ;IAC9B,CAAC;AAEF,OAAI,SAAS,GACX,QAAO,SAAS,MAAM;AAGxB,SAAM,IAAI,MACR,kDAAkD,KAAK,UACrD,MAAM,SAAS,MAAM,EACrB,MACA,EACD,GACF;IACD;;;;;;;;CASJ,MAAM,WAAW,MAAiC;EAChD,MAAM,EAAE,aAAa,MAAM,KAAK,mBAAmB,KAAK;AACxD,MAAI,UAAU,OAAO,QACnB,OAAM,IAAI,MAAM,IAAI,SAAS,UAAU,IAAI,SAAS,MAAM,UAAU;AAEtE,SAAO,SAAS,KAAK,GAAG;;;;;;;;;CAU1B,eAAe,WAA0C;AACvD,SAAO,QAAQ,IAAI,UAAU,KAAK,QAAQ,KAAK,WAAW,IAAI,CAAC,CAAC"}