DownloadGoJay is a performant JSON encoder/decoder for Golang (currently the most performant, see benchmarks). It has a simple API and doesn't use reflection. It relies on small interfaces to decode/encode structures and slices. Gojay also comes with powerful stream decoding features and an even faster Unsafe API. There is also a code generation tool to make usage easier and faster. I looked at other fast decoders/encoders and realized it was mostly hardly readable static code generation or a lot of reflection had poor streaming features and were not so fast in the end. Also, I wanted to build a decoder that could consume an io.Reader of line or comma delimited JSON, in a JIT way. To consume a flow of JSON objects from a TCP connection for example or from a standard output. The same way I wanted to build an encoder that could encode a flow of data to a io.Writer.
Features
- Decoding is done through two different API similar to standard encoding/json
- Unmarshal API decodes a []byte to a given pointer with a single function
- Decode API decodes a []byte to a given pointer by creating or borrowing a *gojay.Decoder with an io.Reader and calling Decode methods
- All DecodeXxx methods are used to decode top level JSON values
- NKeys method must return the number of keys to Unmarshal in the JSON object or 0. If zero is returned, all keys will be parsed
- Encoding is done through two different API similar to standard encoding/json
Project Samples
