voyage-ai-provider/dist/index.js

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

// src/voyage-provider.ts
import {
  loadApiKey,
  withoutTrailingSlash
} from "@ai-sdk/provider-utils";

// src/voyage-embedding-model.ts
import {
  TooManyEmbeddingValuesForCallError
} from "@ai-sdk/provider";
import {
  createJsonResponseHandler,
  postJsonToApi
} from "@ai-sdk/provider-utils";
import { z as z2 } from "zod";

// src/voyage-error.ts
import { createJsonErrorResponseHandler } from "@ai-sdk/provider-utils";
import { z } from "zod";
var voyageErrorDataSchema = z.object({
  error: z.object({
    code: z.string().nullable(),
    message: z.string(),
    param: z.any().nullable(),
    type: z.string()
  })
});
var voyageFailedResponseHandler = createJsonErrorResponseHandler({
  errorSchema: voyageErrorDataSchema,
  errorToMessage: (data) => data.error.message
});

// src/voyage-embedding-model.ts
var VoyageEmbeddingModel = class {
  specificationVersion = "v1";
  modelId;
  config;
  settings;
  get provider() {
    return this.config.provider;
  }
  get maxEmbeddingsPerCall() {
    return 128;
  }
  get supportsParallelCalls() {
    return false;
  }
  constructor(modelId, settings, config) {
    this.modelId = modelId;
    this.settings = settings;
    this.config = config;
  }
  async doEmbed({
    abortSignal,
    values
  }) {
    if (values.length > this.maxEmbeddingsPerCall) {
      throw new TooManyEmbeddingValuesForCallError({
        maxEmbeddingsPerCall: this.maxEmbeddingsPerCall,
        modelId: this.modelId,
        provider: this.provider,
        values
      });
    }
    const { responseHeaders, value: response } = await postJsonToApi({
      abortSignal,
      body: {
        input: values,
        model: this.modelId,
        input_type: this.settings.inputType,
        truncation: this.settings.truncation,
        output_dimension: this.settings.outputDimension,
        output_dtype: this.settings.outputDtype
      },
      failedResponseHandler: voyageFailedResponseHandler,
      fetch: this.config.fetch,
      headers: this.config.headers(),
      successfulResponseHandler: createJsonResponseHandler(
        voyageTextEmbeddingResponseSchema
      ),
      url: `${this.config.baseURL}/embeddings`
    });
    return {
      embeddings: response.data.map((item) => item.embedding),
      usage: response.usage ? { tokens: response.usage.total_tokens } : void 0,
      rawResponse: { headers: responseHeaders }
    };
  }
};
var voyageTextEmbeddingResponseSchema = z2.object({
  data: z2.array(z2.object({ embedding: z2.array(z2.number()) })),
  usage: z2.object({ total_tokens: z2.number() }).nullish()
});

// src/voyage-provider.ts
function createVoyage(options = {}) {
  const baseURL = withoutTrailingSlash(options.baseURL) ?? "https://api.voyageai.com/v1";
  const getHeaders = () => ({
    Authorization: `Bearer ${loadApiKey({
      apiKey: options.apiKey,
      environmentVariableName: "VOYAGE_API_KEY",
      description: "Voyage"
    })}`,
    ...options.headers
  });
  const createEmbeddingModel = (modelId, settings = {}) => new VoyageEmbeddingModel(modelId, settings, {
    provider: "voyage.embedding",
    baseURL,
    headers: getHeaders,
    fetch: options.fetch
  });
  const provider = function(modelId, settings) {
    if (new.target) {
      throw new Error(
        "The Voyage model function cannot be called with the new keyword."
      );
    }
    return createEmbeddingModel(modelId, settings);
  };
  provider.embedding = createEmbeddingModel;
  provider.textEmbedding = createEmbeddingModel;
  provider.textEmbeddingModel = createEmbeddingModel;
  provider.chat = provider.languageModel = () => {
    throw new Error("languageModel method is not implemented.");
  };
  return provider;
}
var voyage = createVoyage();
export {
  createVoyage,
  voyage
};
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