QueryStringParameters encoding issue

[Cox65]

Hi,

I suspect an issue while providing queryParameters.

When performing a query to my API using <API_ROOT>/logs?start_time=2020-10-12T14:00:00%2B02:00&end_time=2020-10-12T15:00:00%2B02:00

I get my query string values in Flask endpoint as:
start_time = "2020-10-12T14:00:00 02:00"
end_time = "2020-10-12T15:00:00 02:00"

and it should be :
start_time = "2020-10-12T14:00:00+02:00"
end_time = "2020-10-12T15:00:00+02:00"

Note: The "+" has been removed

I think this is because API Gateway is providing queryStringParameters decoded and your are not encoding them back to store them in environ["QUERY_STRING"].
If we look to what other WSGI adapters (like Zappa) are doing:

       if 'multiValueQueryStringParameters' in event_info:
            query = event_info['multiValueQueryStringParameters']
            query_string = urlencode(query, doseq=True) if query else ''
        else:
            query = event_info.get('queryStringParameters', {})
            query_string = urlencode(query) if query else ''

Hope it helps.

[adamchainz]

Thanks. I thought I got these right in #102 but it looks like that fix was incorrect. Fixed in #187 .

[adamchainz]

Fix released in 2.9.1. Thanks again for a clear bug report and sample code. If you try out apig-wsgi, let me know how it works for you.