safe json decoder added

[kpacha]

$ go test -bench . -benchmem -benchtime 10s
goos: darwin
goarch: amd64
pkg: github.com/devopsfaith/krakend/encoding
BenchmarkDecoder/json-collection/collection-8         	 7517224	      1605 ns/op	    1472 B/op	      17 allocs/op
BenchmarkDecoder/json-collection/map-8                	 7459869	      1606 ns/op	    1472 B/op	      17 allocs/op
BenchmarkDecoder/json-map/collection-8                	17147770	       710 ns/op	     992 B/op	       6 allocs/op
BenchmarkDecoder/json-map/map-8                       	16881831	       704 ns/op	     992 B/op	       6 allocs/op
BenchmarkDecoder/safe-json-collection/collection-8    	 8487573	      1407 ns/op	    1504 B/op	      19 allocs/op
BenchmarkDecoder/safe-json-collection/map-8           	 8509557	      1406 ns/op	    1504 B/op	      19 allocs/op
BenchmarkDecoder/safe-json-map/collection-8           	 8538740	      1407 ns/op	    1504 B/op	      19 allocs/op
BenchmarkDecoder/safe-json-map/map-8                  	 8451696	      1406 ns/op	    1504 B/op	      19 allocs/op
PASS
ok  	github.com/devopsfaith/krakend/encoding	106.298s

this json decoder accepts any kind of json input (in opposition of the regular one). the downside of such flexibility is a decrement in throughput and an increment in memory consumed and allocations

[coveralls]

Coverage decreased (-0.05%) to 96.064% when pulling 6277c59 on safe_json into 23bbc40 on master.

[github-actions]

This pull request was marked as resolved a long time ago and now has been automatically locked as there has not been any recent activity after it. You can still open a new issue and reference this link.