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AWS and Rails: The authorization header is malformed; the Credential is mal-formed

I am trying to access my S3 bucket from a production server. Everything works fine in development, however in my prod console I am getting:

Aws::S3::Errors::AuthorizationHeaderMalformed: The authorization header is malformed; the Credential is mal-formed; expecting "<YOUR-AKID>/YYYYMMDD/REGION/SERVICE/aws4_request".

My code:

class AwsFileDownloader
  def initialize(args)
    @s3 = Aws::S3::Client.new
    @aws_file_path = ...
  end

  def get_file
    temp_file = File.new('temp.csv', 'r+')
    @s3.get_object({bucket: Rails.application.secrets.aws_bucket, key: @aws_file_path}, target: temp_file)
    ...
  end
end

My aws initializer (which seems to work fine in both environments):

require 'aws-sdk'

Aws.config.update({
  region: Rails.application.secrets.aws_region,
  credentials: Aws::Credentials.new(Rails.application.secrets.access_key_id, Rails.application.secrets.secret_access_key)
})

appreciate any advice!

over 4 years ago · Santiago Trujillo
3 Respuestas
Responde la pregunta

0

This answer is very late but maybe someone will find it useful. The above error is caused when you switch up the AWS KEY ID and the AWS ACCESS KEY.

Use the correct credential in the right place and it should fix your issue.

over 4 years ago · Santiago Trujillo Denunciar

0

Things to check:

  • bucket ACLs and bucket policies. Does production match dev?
  • do any of your keys contain slashes, that could be incorrectly parsed?
  • are your dev and production regions different? Does it make a difference if you try a different region?
over 4 years ago · Santiago Trujillo Denunciar

0

As the error suggests the credentials is not being set correctly. One possible reason (since in works in development environment) is that the config variables access_key_id and secret_access_key might be environment specific.

over 4 years ago · Santiago Trujillo Denunciar
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