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aws-beam / aws-codegen

Code generator for AWS clients in Erlang and Elixir.
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Error when providing multiple querystring parameters #43

Closed jfacorro closed 4 years ago

jfacorro commented 4 years ago

Description

When providing multiple querystring parameters (e.g. to aws_s3:list_objects/8) the response from AWS is the error The request signature we calculated does not match the signature you provided. Check your key and signing method..

How to reproduce

Run the following with valid values for bucket and prefix:

aws_s3:list_objects(aws_client:make_client(), <<"bucket">>, <<"/">>, undefined, undefined, undefined, <<"prefix">>, undefined).

The result is an error specifying that The request signature we calculated does not match the signature you provided. Check your key and signing method..

Root cause

The querystring parameters are sorted in reverse order. The request sends ?prefix=prefix&delimiter=%2F and the expected querystring as reported by the error returned from AWS should be ?delimiter=%2F&prefix=prefix.

jfacorro commented 4 years ago

This issue belong in aws-erlang.