@sentool/fetch-event-source/dist/index.cjs.map

Using the Fetch API to request an SSE endpoint.

{"version":3,"file":"index.cjs","sources":["../src/parse.js","../src/fetch.js"],"sourcesContent":["/**\n * SSE 文本解析\n * @param {string} chunk - decode 后的 SSE 格式数据块\n * @param {Function} callback\n * @param {Object} instance\n */\nfunction eventsourceParser(chunk, callback, options = {}) {\n  let message = {};\n  const {\n    instance = eventsourceParser,\n    parseJson = true\n  } = options;\n  const buffer = (instance.buffer || '') + chunk;\n  const lines = buffer.split('\\n');\n  const onMessage = (message) => callback?.(message);\n\n  // SSE 规范要求每个事件使用空行即 \\n\\n 进行分割\n  // 移除最后一行，若事件完整则为空行，若事件不完整则留作下次处理\n  instance.buffer = lines.pop();\n\n  // 若数据为空则直接返回\n  if (lines.length === 0) {\n    return onMessage(message, 0);\n  }\n\n  // 解析原始数据\n  lines.forEach((item) => {\n    // 空行表示一个完整事件的结束\n    if (item.trim() === '') {\n      // 是否自动解析 JSON\n      if (parseJson) {\n        try {\n          message.data = JSON.parse(message.data);\n        } catch(e) {}\n      }\n      onMessage(message); 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