@axflow/models/dist/togetherai/inference.mjs

Zero-dependency, modular SDK for building robust natural language applications

// src/togetherai/inference.ts
import { HttpError, POST } from "@axflow/models/shared";
var TOGETHERAI_INFERENCE_ENDPOINT = "https://api.together.xyz/inference";
function headers(apiKey, customHeaders) {
  const headers2 = {
    accept: "application/json",
    "content-type": "application/json",
    ...customHeaders
  };
  if (typeof apiKey === "string") {
    headers2.authorization = `Bearer ${apiKey}`;
  }
  return headers2;
}
async function run(request, options) {
  const url = options.apiUrl || TOGETHERAI_INFERENCE_ENDPOINT;
  const response = await POST(url, {
    headers: headers(options.apiKey, options.headers),
    body: JSON.stringify({ ...request, stream_tokens: false }),
    fetch: options.fetch,
    signal: options.signal
  });
  return response.json();
}
async function streamBytes(request, options) {
  const url = options.apiUrl || TOGETHERAI_INFERENCE_ENDPOINT;
  const response = await POST(url, {
    headers: headers(options.apiKey, options.headers),
    body: JSON.stringify({ ...request, stream_tokens: true }),
    fetch: options.fetch,
    signal: options.signal
  });
  if (!response.body) {
    throw new HttpError("Expected response body to be a ReadableStream", response);
  }
  return response.body;
}
function noop(chunk) {
  return chunk;
}
async function stream(request, options) {
  const byteStream = await streamBytes(request, options);
  return byteStream.pipeThrough(new TogetherAIInferenceDecoderStream(noop));
}
function chunkToToken(chunk) {
  return chunk.choices[0].text || "";
}
async function streamTokens(request, options) {
  const byteStream = await streamBytes(request, options);
  return byteStream.pipeThrough(new TogetherAIInferenceDecoderStream(chunkToToken));
}
var TogetherAIInference = class {
  static run = run;
  static stream = stream;
  static streamBytes = streamBytes;
  static streamTokens = streamTokens;
};
var TogetherAIInferenceDecoderStream = class _TogetherAIInferenceDecoderStream extends TransformStream {
  static DATA_RE = /data:\s*(.+)/;
  static parseChunk(chunk) {
    chunk = chunk.trim();
    if (chunk.length === 0) {
      return null;
    }
    const match = chunk.match(_TogetherAIInferenceDecoderStream.DATA_RE);
    try {
      const data = match[1];
      return data === "[DONE]" ? null : JSON.parse(data);
    } catch (error) {
      throw new Error(
        `Encountered unexpected chunk while parsing TogetherAI streaming response: ${JSON.stringify(
          chunk
        )}`
      );
    }
  }
  static streamTransformer(map) {
    let buffer = [];
    const decoder = new TextDecoder();
    return (bytes, controller) => {
      const chunk = decoder.decode(bytes);
      for (let i = 0, len = chunk.length; i < len; ++i) {
        const isChunkSeparator = chunk[i] === "\n" && buffer[buffer.length - 1] === "\n";
        if (!isChunkSeparator) {
          buffer.push(chunk[i]);
          continue;
        }
        const parsedChunk = _TogetherAIInferenceDecoderStream.parseChunk(
          buffer.join("")
        );
        if (parsedChunk) {
          controller.enqueue(map(parsedChunk));
        }
        buffer = [];
      }
    };
  }
  constructor(map) {
    super({ transform: _TogetherAIInferenceDecoderStream.streamTransformer(map) });
  }
};
export {
  TogetherAIInference
};