Hi Peops,

SO I am trying to use the “presign_url” method on the ex_aws_s3 package - which is essentially just the “ex_aws.Auth.presign_url”.

Long story short - regardless of what url I use or options… I just cannot get this function to play ball even with postman let alone trying to send data from the browser as a form object.

[https://imgur.com/zcRA3sm](response , headers and url1)

[https://imgur.com/TNeOHsD](response , headers and url2)

my function:

  def presign_post_url(bucket_name, file_name, file_type_extension) do                                            config = % 
     config = { region: "eu-west-1" }
     ex_s3_client = ExAws.Config.new(:s3, config)
     query_params = [
        { "Content-Type", "image/jpg"},                                                                               
        {'key', "profile-pictures/" <> file_name}                                                                     
        # { "content-length-range", "10\,10000000" }#max 10MB
     ]                                                                                                             
    presign_options = [virtual_host: false, query_params: query_params]                                                                                                                                                       
    
    ExAws.S3.presigned_url(ex_s3_client, :post, "profile-pictures", file_name, presign_options)                                                                                                                               
  end

The error I get - not matter how I construct the url with bucket_name/folder-path/differents3-url-structures, I always get:

<?xml version="1.0" encoding="UTF-8"?>
<Error>
    <Code>MethodNotAllowed</Code>
    <Message>The specified method is not allowed against this resource.</Message>
    <Method>POST</Method>
    <ResourceType>OBJECT</ResourceType>
    <RequestId>D0BA0AC513BE36D6</RequestId>
    <HostId>NyzdUPLDzHnbkHzWxxcLjdGXOXkpmGOUU1KFIAPJ+vpIPEq0WWyZEerGq1xySG26qzPfKUg7l/o=</HostId>
</Error>

Cors on bucket:

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
    <AllowedOrigin>*</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
    <AllowedMethod>POST</AllowedMethod>
    <AllowedMethod>PUT</AllowedMethod>
    <AllowedHeader>*</AllowedHeader>
</CORSRule>
</CORSConfiguration>

I am stumped, there’s another little issue - about getting the presign_url method to play nicely with “content-length-range”, as it’s not a two value keyword list.
Any help or advice would be awesome!