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node.jsamazon-s3minio

Missing fields in request to upload files to minio using the generated presigned url

I'm using Minio Server to handle files in my nodejs API, basically to emulate s3 locally. I generated Presigned Url to upload images directly.

Presign Url Generation works fine but when I upload my file from Postman the file it gives me this error:

<?xml version="1.0" encoding="UTF-8"?>
<Error>
    <Code>MissingFields</Code>
    <Message>Missing fields in request.</Message>
    <Key>records/marbles.jpg</Key>
    <BucketName>bucket</BucketName>
    <Resource>/bucket/records/marbles.jpg</Resource>
    <RequestId>16E442AB40F8A81F</RequestId>
    <HostId>0149bd16-e056-4def-ba82-2e91346c807c</HostId>
</Error>

The request seems to contain the required headers as mentioned in this thread:

enter image description here

the headers are:

enter image description here

and I also select the file properly in postman(Body>binary>select file) :

enter image description here

The code I use for presigned url generation is:

import { getSignedUrl } from '@aws-sdk/s3-request-presigner';
import { PutObjectCommand, S3Client } from '@aws-sdk/client-s3';
const s3Client = new S3Client({
        region: 'us-east-1',
        credentials: {
        accessKeyId: 'minioadmin',
        secretAccessKey: 'minioadmin',
    },
        endpoint: http://172.21.0.2:9000,
        forcePathStyle: true,
    });
  
const bucketParams = {
        Bucket: 'myBucket',
        Key: `marbles.jpg`,
};  
  
const command = new PutObjectCommand(bucketParams);

const signedUrl = await getSignedUrl(s3Client, command, {
        expiresIn: 10000,
})
Solution

  • I was trying and changing ports, and the put command seems to work when I use only local host for url generation

    so, in this above:

    new S3Client({
        region: 'us-east-1',
        credentials: {
        accessKeyId: 'minioadmin',
        secretAccessKey: 'minioadmin',
    },
        endpoint: http://172.21.0.2:9000,
        forcePathStyle: true,
    });

    I use:

    new S3Client({
        region: 'us-east-1',
        credentials: {
        accessKeyId: 'minioadmin',
        secretAccessKey: 'minioadmin',
    },
        endpoint: http://172.21.0.2, // or 127.0.0.1
        forcePathStyle: true,
    });

    Note, I haven't used any port number, so the default is 80

    If you're using docker-compose add this config:

    . 
.
.
ports:  
  - 80:9000

    and it works fine.