refactor(server): use httpx.Router #856
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Motivation
The
cmd/serverpredates thehttpxpackage, and have many utility types, functions that are already implemented in packagehttpx. Also, routing using pattern matching creates deep nesting code level, making it hard to read & understand.Changes
This PR uses
Routertypes & methods fromhttpxpackage to refactor thecmd/serverpackage to use it for routing HTTP request. Such refactor greatly reduced the nesting level of the code, improved the overall readability. Also, this PR replace the privateJsonErrordefined incmd/serverwith the one inhttpxfor early exiting and error-reporting. Additionally, this PR changes the hard-coded HTTP status code to use constants defined inhttpx/status, eliminating the pass of thereasonargument, making the HTTP server hebaves more consistently and reduce possibility of human error by mismatching reason string and status code.