An error occurred (InvalidArgument) when calling the PutObject operation: X-Amz-Security-Token

[HamedOsama]

I am using R2 as my cloud storage and deploy to Vercel as serverless functions using Django and DRF

Python version: 3.8.0

boto3==1.35.20
Django==4.2.14
django-storages==1.14.4
djangorestframework==3.15.2
urllib3==1.26.20

Settings I am using:

bucket_name = config("CLOUDFLARE_R2_BUCKET")
endpoint_url = config("CLOUDFLARE_R2_BUCKET_ENDPOINT")
access_key = config("CLOUDFLARE_R2_ACCESS_KEY")
secret_key = config("CLOUDFLARE_R2_SECRET_KEY")
signature_version = config("CLOUDFLARE_R2_SIGNATURE_VERSION")

STORAGES = {
    "default": {
        "BACKEND": "storages.backends.s3boto3.S3Boto3Storage",
        "OPTIONS": {
            "bucket_name": bucket_name,
            "endpoint_url": endpoint_url,
            "access_key": access_key,
            "secret_key": secret_key,
            "signature_version": signature_version,
            "default_acl": "public-read",
        },
    },
    # keep static files in local
    "staticfiles": {
        "BACKEND": "django.contrib.staticfiles.storage.StaticFilesStorage",
    }
}

I tried these settings, and it also didn't work.

DEFAULT_FILE_STORAGE = 'storages.backends.s3boto3.S3Boto3Storage'
AWS_ACCESS_KEY_ID = config("CLOUDFLARE_R2_ACCESS_KEY")
AWS_SECRET_ACCESS_KEY = config("CLOUDFLARE_R2_SECRET_KEY")
AWS_STORAGE_BUCKET_NAME = config("CLOUDFLARE_R2_BUCKET")
AWS_S3_ENDPOINT_URL = config("CLOUDFLARE_R2_BUCKET_ENDPOINT")

vercel.json config

{
    "builds": [{
        "src": "core/wsgi.py",
        "use": "@vercel/python",
        "config": { "maxLambdaSize": "15mb", "runtime": "python3.8" }
    },
    {
        "src": "build_files.sh",
        "use": "@vercel/static-build",
        "config": { "distDir": "staticfiles_build" }
    }],
    "routes": [
        {
            "src": "/static/(.*)",
            "dest": "/static/$1"
        },
        {
            "src": "/(.*)",
            "dest": "core/wsgi.py"
        }
    ]
}

I got this error on uploading any object

Also this on getting any object

It works fine locally, but I got this error once I deployed it.