Proper event loop usage

[MrNaif2018]

Fixes #247

[codecov]

Codecov Report

Merging #254 (4784303) into master (d6984b0) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #254   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           47        47           
  Lines         2207      2207           
=========================================
  Hits          2207      2207           

Flag	Coverage Δ
functional-tests	67.73% <50.00%> (ø)
tests	100.00% <100.00%> (ø)

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Impacted Files	Coverage Δ
api/views/websocket.py	100.00% <100.00%> (ø)

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