add basic SQS consumer functionality

[adriangb]

Initial draft for implementation and testing plan. @samuelcolvin I'd appreciate an initial review and then I can dig deeper into testing edge cases, getting the queue URL, etc.

[codecov[bot]]

Codecov Report

Merging #33 (a6a3148) into main (64f8cfe) will decrease coverage by 1.44%. The diff coverage is 92.22%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #33      +/-   ##
==========================================
- Coverage   97.39%   95.94%   -1.45%     
==========================================
  Files           9       10       +1     
  Lines         537      617      +80     
  Branches       91      100       +9     
==========================================
+ Hits          523      592      +69     
- Misses          9       17       +8     
- Partials        5        8       +3     

Impacted Files	Coverage Δ
aioaws/sqs.py	89.39% <89.39%> (ø)
aioaws/core.py	98.34% <100.00%> (-1.66%)	:arrow_down:
aioaws/s3.py	97.41% <0.00%> (-1.73%)	:arrow_down:

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[samuelcolvin]

Overall, this looks great, thank you.

[adriangb]

Feedback addressed. Still have to:

• Write some more tests for edge cases and ack/delete features
• Do a smoke test against a real SQS queue to make sure I'm making the API calls correctly

[adriangb]

all done. smoke tests helped me fix the API calls. I'm not including them because they're super crude, but given the stability of the HTTP API I think we should be fine just ensuring we don't break what's there right now. What do you think @samuelcolvin, is this an acceptable testing strategy?

[samuelcolvin]

Yes I think so the aws4 Auth is tested against aws on commits to master.

I'll look in detail on Monday.

[samuelcolvin]

Thanks so much for this. Sorry it took so long.

[adriangb]

No worries, I'm very glad this is in now!

[samuelcolvin]

I'll do a new release soon. Just checking this works properly with CloudFlare's R2.