go-json

Fast JSON encoder/decoder compatible with encoding/json for Go

Status

WIP

API

• Compact
• HTMLEscape
• Indent
• Marshal
• MarshalIndent
• Unmarshal
• Valid
• NewDecoder
• (*Decoder).Buffered
• (*Decoder).Decode
• (*Decoder).DisallowUnknownFields
• (*Decoder).InputOffset
• (*Decoder).More
• (*Decoder).Token
• (*Decoder).UseNumber
• Delim
• (Delim).String
• NewEncoder
• (*Encoder).Encode
• (*Encoder).SetEscapeHTML
• (*Encoder).SetIndent

Type

Encoder

• int, int8, int16, int32, int64
• uint, uint8, uint16, uint32, uint64
• float32, float64
• string
• struct
• array
• slice
• map
• interface{}
• MarshalJSON
• MarshalText
• pointer

Decoder

• int, int8, int16, int32, int64
• uint, uint8, uint16, uint32, uint64
• float32, float64
• string
• struct
• array
• slice
• map
• interface{}
• UnmarshalJSON
• UnmarshalText
• pointer

Error

• InvalidUTF8Error
• InvalidUnmarshalError
• MarshalerError
• SyntaxError
• UnmarshalFieldError
• UnmarshalTypeError
• UnsupportedTypeError
• UnsupportedValueError

Benchmarks

$ cd benchmarks
$ go test -bench .

Environment

goos: darwin
goarch: amd64

Decode

SmallStruct

Benchmark_Decode_SmallStruct_EncodingJson-12             1000000              1725 ns/op             280 B/op          3 allocs/op
Benchmark_Decode_SmallStruct_JsonIter-12                 1000000              1282 ns/op             316 B/op         12 allocs/op
Benchmark_Decode_SmallStruct_GoJay-12                    3000000               553 ns/op             256 B/op          2 allocs/op
Benchmark_Decode_SmallStruct_GoJayUnsafe-12              3000000               509 ns/op             112 B/op          1 allocs/op
Benchmark_Decode_SmallStruct_GoJson-12                   3000000               465 ns/op             256 B/op          2 allocs/op
Benchmark_Decode_SmallStruct_GoJsonNoEscape-12           3000000               407 ns/op             144 B/op          1 allocs/op

MediumStruct

Benchmark_Decode_MediumStruct_EncodingJson-12             100000             20688 ns/op             384 B/op         10 allocs/op
Benchmark_Decode_MediumStruct_JsonIter-12                 200000             10513 ns/op            2985 B/op         81 allocs/op
Benchmark_Decode_MediumStruct_GoJay-12                    500000              3400 ns/op            2449 B/op          8 allocs/op
Benchmark_Decode_MediumStruct_GoJayUnsafe-12              500000              3095 ns/op             144 B/op          7 allocs/op
Benchmark_Decode_MediumStruct_GoJson-12                   500000              2662 ns/op            2457 B/op          9 allocs/op
Benchmark_Decode_MediumStruct_GoJsonNoEscape-12           500000              2614 ns/op            2425 B/op          8 allocs/op

LargeStruct

Benchmark_Decode_LargeStruct_EncodingJson-12                5000            276637 ns/op             312 B/op          6 allocs/op
Benchmark_Decode_LargeStruct_JsonIter-12                   10000            158992 ns/op           41738 B/op       1137 allocs/op
Benchmark_Decode_LargeStruct_GoJay-12                      50000             36340 ns/op           31244 B/op         77 allocs/op
Benchmark_Decode_LargeStruct_GoJayUnsafe-12                50000             34337 ns/op            2561 B/op         76 allocs/op
Benchmark_Decode_LargeStruct_GoJson-12                     50000             39183 ns/op           30755 B/op         67 allocs/op
Benchmark_Decode_LargeStruct_GoJsonNoEscape-12             50000             38809 ns/op           30723 B/op         66 allocs/op

Encode

SmallStruct

Benchmark_Encode_SmallStruct_EncodingJson-12             1000000              1696 ns/op            1048 B/op          8 allocs/op
Benchmark_Encode_SmallStruct_JsonIter-12                 2000000               755 ns/op             984 B/op          7 allocs/op
Benchmark_Encode_SmallStruct_GoJay-12                    3000000               417 ns/op             624 B/op          2 allocs/op
Benchmark_Encode_SmallStruct_GoJson-12                   5000000               323 ns/op             144 B/op          1 allocs/op

MediumStruct

Benchmark_Encode_MediumStruct_EncodingJson-12             300000              3885 ns/op            1712 B/op         24 allocs/op
Benchmark_Encode_MediumStruct_JsonIter-12                1000000              1420 ns/op            1536 B/op         20 allocs/op
Benchmark_Encode_MediumStruct_GoJay-12                   1000000              1044 ns/op             824 B/op         15 allocs/op
Benchmark_Encode_MediumStruct_GoJson-12                  3000000               585 ns/op             320 B/op          1 allocs/op

LargeStruct

Benchmark_Encode_LargeStruct_EncodingJson-12               30000             53239 ns/op           20393 B/op        331 allocs/op
Benchmark_Encode_LargeStruct_JsonIter-12                  100000             21627 ns/op           20278 B/op        328 allocs/op
Benchmark_Encode_LargeStruct_GoJay-12                     100000             22256 ns/op           28048 B/op        323 allocs/op
Benchmark_Encode_LargeStruct_GoJson-12                    100000             17927 ns/op           14683 B/op        319 allocs/op

License

MIT