Get content type from request

[drwpow]

Fix #515

[codecov]

Codecov Report

Merging #516 (64e6485) into main (a46bde2) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #516   +/-   ##
=======================================
  Coverage   84.82%   84.82%           
=======================================
  Files           9        9           
  Lines         323      323           
  Branches      105      105           
=======================================
  Hits          274      274           
  Misses         46       46           
  Partials        3        3           

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