Class AiSdkApi

packages/openai-adapters/src/apis/AiSdk.ts:51–315

};

export class AiSdkApi implements BaseLlmApi {
  private provider?: (modelId: string) => any;
  private config: AiSdkConfig;
  private providerId: string;
  private modelId: string;

  constructor(config: AiSdkConfig) {
    this.config = config;
    if (!config.model) {
      throw new Error(
        "AI SDK provider requires a model in the format '<provider>/<model>' (e.g., 'openai/gpt-4o')",
      );
    }
    const [providerId, ...modelParts] = config.model.split("/");
    this.providerId = providerId;
    this.modelId = modelParts.join("/");
  }

  private initializeProvider() {
    if (this.provider) {
      return;
    }

    const createFn = PROVIDER_MAP[this.providerId];
    if (!createFn) {
      const supportedProviders = Object.keys(PROVIDER_MAP).join(", ");
      throw new Error(
        `Unknown AI SDK provider: "${this.providerId}". ` +
          `Supported providers: ${supportedProviders}. ` +
          `To use a different provider, install the @ai-sdk/* package and add it to the provider map.`,
      );
    }

    const hasRequestOptions =
      this.config.requestOptions &&
      (this.config.requestOptions.headers ||
        this.config.requestOptions.proxy ||
        this.config.requestOptions.caBundlePath ||
        this.config.requestOptions.clientCertificate ||
        this.config.requestOptions.extraBodyProperties);

    this.provider = createFn({
      apiKey: this.config.apiKey ?? "",
      baseURL: this.config.apiBase,
      fetch: hasRequestOptions
        ? customFetch(this.config.requestOptions)
        : undefined,
    });
  }

  async chatCompletionNonStream(
    body: ChatCompletionCreateParamsNonStreaming,
    signal: AbortSignal,
  ): Promise<ChatCompletion> {
    this.initializeProvider();

    const { generateText } = await import("ai");
    const { convertOpenAIMessagesToVercel } = await import(