use strings.Builder for url building #231
Merged
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this PR uses strings.Builder instead of custom building strategies at the balancer middleware.
since the release of the 1.10 version of the go language introduced the
strings.Builder
struct, its performance has been improved and tests say it's time to adopt this implementation.The changes introduced in this PR reduce the number and the size of the required memory allocations requested by this mw, relaxing the memory gc requirements