mixedbread-ai-provider/dist/index.js

Mixedbread AI Provider for running Mixedbread AI models with Vercel AI SDK

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var index_exports = {};
__export(index_exports, {
  createMixedbread: () => createMixedbread,
  mixedbread: () => mixedbread
});
module.exports = __toCommonJS(index_exports);

// src/mixedbread-provider.ts
var import_provider_utils3 = require("@ai-sdk/provider-utils");

// src/mixedbread-embedding-model.ts
var import_provider = require("@ai-sdk/provider");
var import_provider_utils2 = require("@ai-sdk/provider-utils");
var import_v43 = require("zod/v4");

// src/mixedbread-error.ts
var import_provider_utils = require("@ai-sdk/provider-utils");
var import_v4 = require("zod/v4");
var mixedbreadErrorDataSchema = import_v4.z.object({
  error: import_v4.z.object({
    code: import_v4.z.string().nullable(),
    message: import_v4.z.string(),
    param: import_v4.z.any().nullable(),
    type: import_v4.z.string()
  })
});
var mixedbreadFailedResponseHandler = (0, import_provider_utils.createJsonErrorResponseHandler)({
  errorSchema: mixedbreadErrorDataSchema,
  errorToMessage: (data) => data.error.message
});

// src/mixedbread-embedding-options.ts
var import_v42 = require("zod/v4");
var mixedbreadEmbeddingOptions = import_v42.z.object({
  /**
   * An optional prompt to provide context to the model. Refer to the model's documentation for more information.
   * A string between 1 and 256 characters.
   */
  prompt: import_v42.z.string().optional(),
  /**
   * Option to normalize the embeddings.
   */
  normalized: import_v42.z.boolean().optional(),
  /**
   * The desired number of dimensions in the output vectors. Defaults to the model's maximum.
   * A number between 1 and the model's maximum output dimensions.
   * Only applicable for Matryoshka-based models.
   */
  dimensions: import_v42.z.number().optional(),
  /**
   * The desired format for the embeddings. Defaults to "float".
   * Options: float, float16, binary, ubinary, int8, uint8, base64.
   */
  encodingFormat: import_v42.z.enum(["float", "float16", "binary", "ubinary", "int8", "uint8", "base64"]).optional()
});

// src/mixedbread-embedding-model.ts
var MixedbreadEmbeddingModel = class {
  specificationVersion = "v2";
  modelId;
  config;
  get provider() {
    return this.config.provider;
  }
  get maxEmbeddingsPerCall() {
    return 256;
  }
  get supportsParallelCalls() {
    return true;
  }
  constructor(modelId, config) {
    this.modelId = modelId;
    this.config = config;
  }
  async doEmbed({
    abortSignal,
    values,
    headers,
    providerOptions
  }) {
    const embeddingOptions = await (0, import_provider_utils2.parseProviderOptions)({
      provider: "mixedbread",
      providerOptions,
      schema: mixedbreadEmbeddingOptions
    });
    if (values.length > this.maxEmbeddingsPerCall) {
      throw new import_provider.TooManyEmbeddingValuesForCallError({
        maxEmbeddingsPerCall: this.maxEmbeddingsPerCall,
        modelId: this.modelId,
        provider: this.provider,
        values
      });
    }
    const {
      responseHeaders,
      value: response,
      rawValue
    } = await (0, import_provider_utils2.postJsonToApi)({
      abortSignal,
      body: {
        input: values,
        model: this.modelId,
        prompt: embeddingOptions?.prompt,
        normalize: embeddingOptions?.normalized,
        dimensions: embeddingOptions?.dimensions,
        encoding_format: embeddingOptions?.encodingFormat
      },
      failedResponseHandler: mixedbreadFailedResponseHandler,
      fetch: this.config.fetch,
      headers: (0, import_provider_utils2.combineHeaders)(this.config.headers(), headers),
      successfulResponseHandler: (0, import_provider_utils2.createJsonResponseHandler)(
        mixedbreadTextEmbeddingResponseSchema
      ),
      url: `${this.config.baseURL}/embeddings`
    });
    return {
      embeddings: response.data.map((item) => item.embedding),
      usage: response.usage ? { tokens: response.usage.total_tokens } : void 0,
      response: { headers: responseHeaders, body: rawValue }
    };
  }
};
var mixedbreadTextEmbeddingResponseSchema = import_v43.z.object({
  data: import_v43.z.array(import_v43.z.object({ embedding: import_v43.z.array(import_v43.z.number()) })),
  usage: import_v43.z.object({ total_tokens: import_v43.z.number() }).nullish()
});

// src/mixedbread-provider.ts
function createMixedbread(options = {}) {
  const baseURL = (0, import_provider_utils3.withoutTrailingSlash)(options.baseURL) ?? "https://api.mixedbread.com/v1";
  const getHeaders = () => ({
    Authorization: `Bearer ${(0, import_provider_utils3.loadApiKey)({
      apiKey: options.apiKey,
      environmentVariableName: "MIXEDBREAD_API_KEY",
      description: "Mixedbread"
    })}`,
    ...options.headers
  });
  const createEmbeddingModel = (modelId) => new MixedbreadEmbeddingModel(modelId, {
    provider: "mixedbread.embedding",
    baseURL,
    headers: getHeaders,
    fetch: options.fetch
  });
  const provider = function(modelId) {
    if (new.target) {
      throw new Error(
        "The Mixedbread model function cannot be called with the new keyword."
      );
    }
    return createEmbeddingModel(modelId);
  };
  provider.textEmbeddingModel = createEmbeddingModel;
  provider.chat = provider.languageModel = () => {
    throw new Error("languageModel method is not implemented.");
  };
  provider.imageModel = () => {
    throw new Error("imageModel method is not implemented.");
  };
  return provider;
}
var mixedbread = createMixedbread();
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  createMixedbread,
  mixedbread
});
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