The authorization mechanism you have provided is not supported Please use AWS4-HMAC-SHA256

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I get an error AWS  S3  Errors  InvalidRequest The authorization mechanism you have provided is not supported  Please use AWS4-HMAC-SHA256  when I try upload file to S3 bucket in new Frankfurt region  All works properly with US Standard region   Script   backup file     media db-backup for dev 2014-10-23 02-00-07 slave dump sql gz  s3   AWS  S3 new      access key id      AMAZONS3  access key id        secret access key  AMAZONS3  secret access key      s3 bucket   s3 buckets  test-frankfurt      Folder and file name s3 name    database-backups-last20days   File basename File dirname backup file      File basename backup file     file obj   s3 bucket objects s3 name  file obj write file  backup file    aws-sdk  1 56 0   How to fix it   Thank you

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With node  try  var s3   new AWS S3        endpoint   s3-eu-central-1 amazonaws com       signatureVersion   v4       region   eu-central-1

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Similar issue with the PHP SDK  this works    s3Client   S3Client  factory array  key   gt YOUR AWS KEY   secret   gt YOUR AWS SECRET   signature    gt   v4    region   gt  eu-central-1       The important bit is the signature and the region

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In my case  the request type was wrong  I was using GET dumb  It must be PUT

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Code for Flask  boto3   Don t forget to import Config  Also If you have your own config class  then change its name   from botocore client import Config  s3   boto3 client  s3  config Config signature version  s3v4   region name app config  AWS REGION   aws access key id app config  AWS ACCESS KEY    aws secret access key app config  AWS SECRET KEY    s3 upload fileobj file app config  AWS BUCKET NAME   file filename  url   s3 generate presigned url  get object   Params     Bucket  app config  AWS BUCKET NAME      Key   file filename   ExpiresIn   10000

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Sometime the default version will not update  Add this command   AWS S3 SIGNATURE VERSION    s3v4    in settings py

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AWS4-HMAC-SHA256  also known as Signature Version 4    V4   is one of two authentication schemes supported by S3   All regions support V4  but US-Standard sup1   and many -- but not all -- other regions  also support the other  older scheme  Signature Version 2   V2     According to http   docs aws amazon com AmazonS3 latest API sig-v4-authenticating-requests html     new S3 regions deployed after January  2014 will only support V4   Since Frankfurt was introduced late in 2014  it does not support V2  which is what this error suggests you are using   http   docs aws amazon com AmazonS3 latest dev UsingAWSSDK html explains how to enable V4 in the various SDKs  assuming you are using an SDK that has that capability   I would speculate that some older versions of the SDKs might not support this option  so if the above doesn t help  you may need a newer release of the SDK you are using      sup1 US Standard is the former name for the S3 regional deployment that is based in the us-east-1 region  Since the time this answer was originally written   Amazon S3 renamed the US Standard Region to the US East  N  Virginia  Region to be consistent with AWS regional naming conventions    For all practical purposes  it s only a change in naming

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AWS S3 REGION NAME    ap-south-1   AWS S3 SIGNATURE VERSION    s3v4    this also saved my time after surfing for 24Hours

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For Boto3   use this code   import boto3 from botocore client import Config   s3   boto3 resource  s3           aws access key id  xxxxxx           aws secret access key  xxxxxx           region name  us-south-1           config Config signature version  s3v4

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I was stuck for 3 days and finally  after reading a ton of blogs and answers I was able to configure Amazon AWS S3 Bucket  On the AWS Side I am assuming you have already  Created an s3-bucket Created a user in IAM  Steps  Configure CORS settings you bucket  gt  permissions  gt  CORS configuration  lt CORSConfiguration xmlns  quot http   s3 amazonaws com doc 2006-03-01  quot  gt   lt CORSRule gt       lt AllowedOrigin gt   lt  AllowedOrigin gt       lt AllowedMethod gt GET lt  AllowedMethod gt       lt AllowedMethod gt POST lt  AllowedMethod gt       lt AllowedMethod gt PUT lt  AllowedMethod gt       lt AllowedHeader gt   lt  AllowedHeader gt   lt  CORSRule gt   lt  CORSConfiguration gt        Generate A bucket policy   your bucket  gt  permissions  gt  bucket policy It should be similar to this one          quot Version quot    quot 2012-10-17 quot         quot Id quot    quot Policy1602480700663 quot         quot Statement quot                              quot Sid quot    quot Stmt1602480694902 quot                 quot Effect quot    quot Allow quot                 quot Principal quot    quot   quot                 quot Action quot    quot s3 GetObject quot                 quot Resource quot    quot arn aws s3   harshit-portfolio-bucket   quot                        PS  Bucket policy should say  public  after this    Configure Access Control List  your bucket  gt  permissions  gt  acces control list give public access PS  Access Control List should say public after this  Unblock public Access  your bucket  gt  permissions  gt  Block Public Access Edit and turn all options Off   On a side note if you are working on django add the following lines to you settings py file of your project     S3 BUCKETS CONFIG  AWS ACCESS KEY ID        not to be shared       AWS SECRET ACCESS KEY         not to be shared        AWS STORAGE BUCKET NAME    your-bucket-name   AWS S3 FILE OVERWRITE   False AWS DEFAULT ACL   None DEFAULT FILE STORAGE    storages backends s3boto3 S3Boto3Storage     look for files first in aws  STATICFILES STORAGE    storages backends s3boto3 S3Boto3Storage     In India these settings work AWS S3 REGION NAME    quot ap-south-1 quot  AWS S3 SIGNATURE VERSION    quot s3v4 quot

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With boto3  this is the code    s3 client   boto3 resource  s3   region name  eu-central-1     or  s3 client   boto3 client  s3   region name  eu-central-1

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Check your AWS S3 Bucket Region and Pass proper Region in Connection Request   In My Senario I have set  APSouth1  for Asia Pacific  Mumbai    using  var client   new AmazonS3Client awsAccessKeyId  awsSecretAccessKey  RegionEndpoint APSouth1         GetPreSignedUrlRequest request1   new GetPreSignedUrlRequest               BucketName   bucketName          Key   keyName          Expires   DateTime Now AddMinutes 50              urlString   client GetPreSignedURL request1

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I have been using Django  and I had to add these extra config variables to make this work    in addition to settings mentioned in https   simpleisbetterthancomplex com tutorial 2017 08 01 how-to-setup-amazon-s3-in-a-django-project html    AWS S3 REGION NAME    ap-south-1    Or previous to boto3 version 1 4 4   AWS S3 REGION NAME    ap-south-1   AWS S3 SIGNATURE VERSION    s3v4

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For thumbor-aws  that used boto config  i needed to put this to the  AWS CONFIG FILE   default  aws access key id    your ID  aws secret access key    your secret key  s3       signature version   s3   So anything that used boto directly without changes  this may be useful

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Try this combination   const s3   new AWS S3     endpoint   s3-ap-south-1 amazonaws com            Bucket region   accessKeyId   A-----------------U     secretAccessKey   k------ja----------------soGp     Bucket   bucket name     useAccelerateEndpoint  true    signatureVersion   v4     region   ap-south-1                 Bucket region

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For Android SDK  setEndpoint solves the problem  although it s been deprecated    CognitoCachingCredentialsProvider credentialsProvider   new CognitoCachingCredentialsProvider                  context   identityPoolId   Regions US EAST 1   AmazonS3 s3   new AmazonS3Client credentialsProvider   s3 setEndpoint  s3 us-east-2 amazonaws com

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You should set signatureVersion   v4  in config to use new sign version   AWS config update       signatureVersion   v4        Works for JS sdk

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Supernova answer for django boto3 django-storages worked with me   AWS S3 REGION NAME    quot ap-south-1 quot    Or previous to boto3 version 1 4 4    AWS S3 REGION NAME    quot ap-south-1 quot    AWS S3 SIGNATURE VERSION    quot s3v4 quot   just add them to your settings py and change region code accordingly you can check aws regions from  enter link description here

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Basically the error was because I was using old version of aws-sdk and I updated the version so this error occured   in my case with node js i was using signatureVersion in parmas object like this    const AWS S3   new AWS S3     params        Bucket  process env AWS S3 BUCKET      signatureVersion   v4       region  process env AWS S3 REGION           Then I put signature out of params object and worked like charm     const AWS S3   new AWS S3     params        Bucket  process env AWS S3 BUCKET      region  process env AWS S3 REGION        signatureVersion   v4

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For people using boto3  Python SDK  use the below code   from botocore client import Config   s3   boto3 resource       s3       aws access key id  xxxxxx       aws secret access key  xxxxxx       config Config signature version  s3v4

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In Java I had to set a property  System setProperty SDKGlobalConfiguration ENFORCE S3 SIGV4 SYSTEM PROPERTY   true     and add the region to the s3Client instance   s3Client setRegion Region getRegion Regions EU CENTRAL 1

[ruby] The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256

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