Alternative Go JSON parser

features

Supported types to unmarshal into:

• int
• float64
• string
• bool
• RawMessage
• structs made of all of these
• slices made of all of these
• pointers to all of these
• map[string]{all of these}

Other basic types would be easy to add; I have not needed them yet. Note that the empty interface is not supported.

vs. encoding/json

• this works on a string, not a []byte
• encoding/json has nice error messages
• encoding/json can decode to the empty interface
• encoding/json supports the Unmarshaler interface

performance

For the use case I'm mostly interested in (parsing openRTB requests) I get twice the performance and half the allocs:

Similar for parsing large ElasticSearch bulk results:

status

Works fine for us.