[@alicloud/sls20201230 v5.7.2] putLogs 无法获取请求体长度导致报错

[RuixeWolf]

问题描述

使用云日志服务 SDK sls20201230 的 putLogs 方法报错 TypeError: Cannot read properties of null (reading 'length')，使用 API 调试台 生成的 SDK 示例代码同样报错。但使用 getLogStore 可正常获取 Store 信息，说明 AK 和 project store 配置正常。
推测可能是 @alicloud/gateway-sls.Client.modifyRequest 方法中初始化请求体数据 bodyBytes 的问题，报错详细信息：

D:\Codes\Yike\ykerp-nest-service\node_modules\.pnpm\@alicloud+gateway-sls-util@0.3.0\node_modules\@alicloud\gateway-sls-util\src\client.ts:74
    return src.length;
               ^

TypeError: Cannot read properties of null (reading 'length')
    at Function.bytesLength (D:\Codes\Yike\ykerp-nest-service\node_modules\.pnpm\@alicloud+gateway-sls-util@0.3.0\node_modules\@alicloud\gateway-sls-util\src\client.ts:74:16)
    at Client.modifyRequest (D:\Codes\Yike\ykerp-nest-service\node_modules\.pnpm\@alicloud+gateway-sls@0.3.0\node_modules\@alicloud\gateway-sls\src\client.ts:98:39)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async Client.execute (D:\Codes\Yike\ykerp-nest-service\node_modules\.pnpm\@alicloud+openapi-core@1.0.4\node_modules\@alicloud\openapi-core\src\client.ts:1287:9)
sls20201230@5.7.2\node_modules\@alicloud\sls20201230\src\client.ts:7792:12)
    at async putLogs (D:\Codes\Yike\ykerp-nest-service\src\aliyun\aliyun-log.service.ts:61:20)

Node.js v22.14.0

运行环境

• Windows 11 专业版 24H2 26100.4351
• Node.js - 22.14.0
• npm - 11.4.2
• @alicloud/sls20201230 - 5.7.2
• @alicloud/credentials - 2.4.3
• @alicloud/openapi-client - 0.4.14
• @alicloud/tea-typescript - 1.8.0
• @alicloud/tea-util - 1.4.10

示例代码与运行输出

import Credential, * as $Credential from '@alicloud/credentials'
import * as $OpenApi from '@alicloud/openapi-client'
import Sls, * as $Sls from '@alicloud/sls20201230'

/**
 * 创建阿里云日志服务客户端
 * @description 从环境变量获取配置创建阿里云日志服务客户端实例，需要的环境变量包括：
 * - `ALIBABA_CLOUD_ACCESS_KEY_ID` - 阿里云访问密钥 ID
 * - `ALIBABA_CLOUD_ACCESS_KEY_SECRET` - 阿里云访问密钥 Secret
 * - `ALIBABA_CLOUD_SLS_ENDPOINT` - 阿里云日志服务的接入点
 * @returns 阿里云日志服务客户端
 */
function createSlSClient(): Sls {
  /**
   * 阿里云凭据
   * @description 配置方式请参见：https://help.aliyun.com/document_detail/378664.html
   */
  const credential = new Credential(
    new $Credential.Config({
      type: 'access_key',
      accessKeyId: process.env.ALIBABA_CLOUD_ACCESS_KEY_ID,
      accessKeySecret: process.env.ALIBABA_CLOUD_ACCESS_KEY_SECRET
    })
  )

  /** 阿里云 OpenApi 配置 */
  const config = new $OpenApi.Config({
    credential,
    endpoint: process.env.ALIBABA_CLOUD_SLS_ENDPOINT
  })

  // 阿里云日志服务
  return new Sls(config)
}

const slsClient = createSlSClient()

async function putLogs(
  project: string,
  store: string,
  contents: Pick<$Sls.LogContent, 'key' | 'value'>[]
): Promise<$Sls.PutLogsResponse> {
  // 查询 LogStore 信息
  const logStore = await slsClient.getLogStore(project, store)
  console.log('LogStore:', logStore)

  // 创建日志项
  const logItem = new $Sls.LogItem({})
  logItem.time = Math.round(Date.now() / 1000) // 时间戳，单位为秒
  logItem.contents = contents.map((content) => new $Sls.LogContent(content))
  console.log('LogItem:', logItem)

  // 创建日志组
  const logGroup = new $Sls.LogGroup({})
  logGroup.logItems = [logItem]
  console.log('LogGroup:', logGroup)

  // 创建并发起 PutLogs 请求
  const request = new $Sls.PutLogsRequest({ body: logGroup })
  console.log('PutLogsRequest:', request)
  const response = await slsClient.putLogs(project, store, request)
  console.log('PutLogs response:', response)
  return response
}

putLogs('ykerp-test', 'backend', [
  {
    key: 'message',
    value: 'Hello, world!'
  }
])

LogStore: GetLogStoreResponse {
  headers: {
    server: 'AliyunSLS',
    'content-type': 'application/json',
    'content-length': '320',
    connection: 'keep-alive',
    'access-control-allow-origin': '*',
    date: 'Fri, 27 Jun 2025 08:38:10 GMT',
    'x-log-time': '1751013490',
    'x-log-requestid': '685E587242DD8DBFC94D4D21'
  },
  statusCode: 200,
  body: Logstore {
    appendMeta: true,
    autoSplit: true,
    createTime: 1734682369,
    enableTracking: false,
    hotTtl: 30,
    lastModifyTime: 1750628422,
    logstoreName: 'backend',
    maxSplitShard: 64,
    mode: 'standard',
    productType: '',
    shardCount: 2,
    telemetryType: '',
    ttl: 30
  }
}
LogItem: LogItem {
  time: 1751013489,
  contents: [ LogContent { key: 'message', value: 'Hello, world!' } ]
}
LogGroup: LogGroup {
  logItems: [ LogItem { time: 1751013489, contents: [Array] } ]
}
PutLogsRequest: PutLogsRequest { body: LogGroup { logItems: [ [LogItem] ] } }
D:\Codes\Yike\ykerp-nest-service\node_modules\.pnpm\@alicloud+gateway-sls-util@0.3.0\node_modules\@alicloud\gateway-sls-util\src\client.ts:74
    return src.length;
               ^


TypeError: Cannot read properties of null (reading 'length')
    at Function.bytesLength (D:\Codes\Yike\ykerp-nest-service\node_modules\.pnpm\@alicloud+gateway-sls-util@0.3.0\node_modules\@alicloud\gateway-sls-util\src\client.ts:74:16)
    at Client.modifyRequest (D:\Codes\Yike\ykerp-nest-service\node_modules\.pnpm\@alicloud+gateway-sls@0.3.0\node_modules\@alicloud\gateway-sls\src\client.ts:98:39)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async Client.execute (D:\Codes\Yike\ykerp-nest-service\node_modules\.pnpm\@alicloud+openapi-core@1.0.4\node_modules\@alicloud\openapi-core\src\client.ts:1287:9)
sls20201230@5.7.2\node_modules\@alicloud\sls20201230\src\client.ts:7792:12)
    at async putLogs (D:\Codes\Yike\ykerp-nest-service\src\aliyun\aliyun-log.service.ts:61:20)

Node.js v22.14.0