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POST{BASE_URL}/wx-api/api/cdn/uploadFile
写操作CDN 文件JSON · Bearer App Token · body appid

上传文件到 CDN ​

上传任意文件（base64），用于 message/sendFile；语音消息则先传 .silk 文件再走 sendVoice。

请求参数 ​

参数必填类型说明
appid是string实例 appid，标识操作哪个已登录账号。示例：we_xxxxxxxxxxxxxxx
fileName是string文件名（语音需 .silk）。示例：wework_voice_5s.silk
base64是string文件 base64，不含 data: 前缀；单次请求体最大 8MB，超过时用上传大文件到 CDN。示例：<文件 base64>

请求示例 ​

http
POST {BASE_URL}/wx-api/api/cdn/uploadFile
Authorization: Bearer <你的 App Token>
Content-Type: application/json

{
  "appid": "we_xxxxxxxxxxxxxxx",
  "fileName": "wework_voice_5s.silk",
  "base64": "<文件 base64>"
}
bash
curl -X POST '{BASE_URL}/wx-api/api/cdn/uploadFile' \
  -H 'Authorization: Bearer <你的 App Token>' \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "appid": "we_xxxxxxxxxxxxxxx",
  "fileName": "wework_voice_5s.silk",
  "base64": "<文件 base64>"
}'
python
import requests

url = "{BASE_URL}/wx-api/api/cdn/uploadFile"
headers = {"Authorization": "Bearer <你的 App Token>", "Content-Type": "application/json"}
body = """{
  "appid": "we_xxxxxxxxxxxxxxx",
  "fileName": "wework_voice_5s.silk",
  "base64": "<文件 base64>"
}"""

resp = requests.post(url, headers=headers, data=body.encode("utf-8"))
print(resp.text)
java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

String url = "{BASE_URL}/wx-api/api/cdn/uploadFile";
String body = "{\n" +
    "  \"appid\": \"we_xxxxxxxxxxxxxxx\",\n" +
    "  \"fileName\": \"wework_voice_5s.silk\",\n" +
    "  \"base64\": \"<文件 base64>\"\n" +
    "}";

HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
    .header("Authorization", "Bearer <你的 App Token>")
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString(body))
    .build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());
php
<?php

$url = '{BASE_URL}/wx-api/api/cdn/uploadFile';
$body = <<<'JSON'
{
  "appid": "we_xxxxxxxxxxxxxxx",
  "fileName": "wework_voice_5s.silk",
  "base64": "<文件 base64>"
}
JSON;

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'Authorization: Bearer <你的 App Token>',
    'Content-Type: application/json',
]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
echo $response;

响应示例 ​

json
{
  "code": 0,
  "data": {
    "fileId": "3067...0400",
    "aesKey": "cd38a587cbf5305338883db51810fd2b",
    "fileKey": "78d237d1-1efb-4a38-9976-8a26f8757a7c",
    "fileName": "wework_voice_5s.silk",
    "fileMd5": "0cc175b9c0f1b6a831c399e269772661",
    "fileSize": 1
  },
  "detail": "",
  "message": "ok",
  "time": "2026-06-22 02:20:25"
}

响应字段 ​

响应字段（11 项）
字段类型说明
codeint64统一封套状态码：0=成功，负数=失败
dataobject文件凭证；用于发送文件或发送语音时，需改名 fileId → id、fileMd5 → md5、fileSize → size
data.fileIdstringCDN 文件业务标识（即 id）
data.aesKeystringAES 下载解密密钥；CDN 存的是加密字节，下载后用它解密
data.fileKeystringCDN 文件会话 key（上传返回）
data.fileNamestring文件名（带扩展名）
data.fileMd5string文件 MD5
data.fileSizeint64文件字节数
detailstring附加明细，通常为空
messagestring文案：成功为 ok；失败形如 -码|描述
timestring服务端处理时间 YYYY-MM-DD HH:MM:SS

下一步 ​