S3文件上传出现PermanentRedirect错误求助

错误详情 #

上传文件到S3时出现以下永久重定向错误：

Error uploading to S3: PermanentRedirect: The bucket you are attempting to access must be addressed using the specified endpoint. Please send all future requests to this endpoint.

les/next/dist/server/lib/start-server.js:140:13) {
  '$fault': 'client',
  '$metadata': {
    httpStatusCode: 301,
    requestId: '15FT2CFREYE2RZH4',
    extendedRequestId: 'bHgMekr6oM5JHOG2lrbV0hK//YMVz87yujbVeJx1Na4CbD7jFcCHPKgfinsbMRjOnIxVZHC0puE=',
    cfId: undefined,
    attempts: 1,
    totalRetryDelay: 0
  },
  Code: 'PermanentRedirect',
  Endpoint: 'doctors-kitchen.s3.eu-north-1.amazonaws.com',
  Bucket: 'doctors-kitchen',
  RequestId: '15FT2CFREYE2RZH4',
  HostId: 'bHgMekr6oM5JHOG2lrbV0hK//YMVz87yujbVeJx1Na4CbD7jFcCHPKgfinsbMRjOnIxVZHC0puE='
}

当前使用的路由代码 #

import { PutObjectCommand, S3Client } from "@aws-sdk/client-s3";
import { buffer } from "stream/consumers";
import uniqid from "uniqid";

export async function POST(req) {
  const data = await req.formData();
  if (data.get("file")) {
    console.log("we have file", data.get("file"));
    const file = data.get("file");
    const s3Client = new S3Client({
      region: "ap-south-1",
      credentials: {
        accessKeyId: process.env.AWS_ACCESS_KEY,
        secretAccessKey: process.env.AWS_SECRET_KEY,
      },
    });

    const ext = file.name.split(".").slice(-1)[0];
    const newFileName = uniqid() + "." + ext;

    const chunks = [];
    for await (const chunk of file.stream()) {
      chunks.push(chunk);
    }

    const buffer = Buffer.concat(chunks);
    const bucket = "doctors-kitchen";

    try {
      await s3Client.send(
        new PutObjectCommand({
          Bucket: bucket,
          Key: newFileName,
          ACL: "public-read",
          ContentType: file.type,
          Body: buffer,
        })
      );

      const link = "https://" + bucket + ".s3.amazonaws.com/" + newFileName;
      return Response.json(link);
    } catch (error) {
      console.error("Error uploading to S3:", error);
      return Response.json(
        { error: "Failed to upload to S3" },
        { status: 500 }
      );
    }
  }

  console.log(data);
  return Response.json(true);
}

解决方案 #

错误核心原因是代码配置的S3区域与Bucket实际所在区域不匹配：错误信息里的Endpoint字段明确显示Bucket位于eu-north-1区域，但代码中设置的是ap-south-1，导致请求被强制重定向。

需要做两处修改：

1. 修正S3Client的区域配置
   将S3Client初始化时的region值从ap-south-1改为eu-north-1。

2. 修正返回的文件访问链接
   原链接使用通用的s3.amazonaws.com域名，需要替换为对应区域的域名，避免后续访问文件时出现同样的重定向问题。

修改后的完整代码 #

import { PutObjectCommand, S3Client } from "@aws-sdk/client-s3";
import { buffer } from "stream/consumers";
import uniqid from "uniqid";

export async function POST(req) {
  const data = await req.formData();
  if (data.get("file")) {
    console.log("we have file", data.get("file"));
    const file = data.get("file");
    // 修正区域为Bucket实际所在的eu-north-1
    const s3Client = new S3Client({
      region: "eu-north-1",
      credentials: {
        accessKeyId: process.env.AWS_ACCESS_KEY,
        secretAccessKey: process.env.AWS_SECRET_KEY,
      },
    });

    const ext = file.name.split(".").slice(-1)[0];
    const newFileName = uniqid() + "." + ext;

    const chunks = [];
    for await (const chunk of file.stream()) {
      chunks.push(chunk);
    }

    const buffer = Buffer.concat(chunks);
    const bucket = "doctors-kitchen";
    const region = "eu-north-1";

    try {
      await s3Client.send(
        new PutObjectCommand({
          Bucket: bucket,
          Key: newFileName,
          ACL: "public-read",
          ContentType: file.type,
          Body: buffer,
        })
      );

      // 修正文件访问链接为对应区域的域名
      const link = `https://${bucket}.s3.${region}.amazonaws.com/${newFileName}`;
      return Response.json(link);
    } catch (error) {
      console.error("Error uploading to S3:", error);
      return Response.json(
        { error: "Failed to upload to S3" },
        { status: 500 }
      );
    }
  }

  console.log(data);
  return Response.json(true);
}

内容的提问来源于stack exchange，提问作者shriram choudhary