JSON streaming parser and serializer

JSON event parser is a simple streaming JSON parser and serializer implementation in Rust.

It does not aims to be the fastest JSON parser possible but to be a simple implementation allowing to parse larger than memory files.

If you want fast and battle-tested code you might prefer to use json, serde_json or simd-json.

Parser example:

use json_event_parser::{ReaderJsonParser, JsonEvent};

let json = b"{\"foo\": 1}";
let mut reader = ReaderJsonParser::new(json.as_slice());
assert_eq!(reader.parse_next()?, JsonEvent::StartObject);
assert_eq!(reader.parse_next()?, JsonEvent::ObjectKey("foo".into()));
assert_eq!(reader.parse_next()?, JsonEvent::Number("1".into()));
assert_eq!(reader.parse_next()?, JsonEvent::EndObject);
assert_eq!(reader.parse_next()?, JsonEvent::Eof);
# std::io::Result::Ok(())

Serializer example:

use json_event_parser::{WriterJsonSerializer, JsonEvent};

let mut writer = WriterJsonSerializer::new(Vec::new());
writer.write_event(JsonEvent::StartObject) ?;
writer.write_event(JsonEvent::ObjectKey("foo".into())) ?;
writer.write_event(JsonEvent::Number("1".into())) ?;
writer.write_event(JsonEvent::EndObject) ?;

assert_eq!(writer.finish()?.as_slice(), b"{\"foo\":1}");
# std::io::Result::Ok(())

License

This project is licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>)
• MIT license (LICENSE-MIT or <http://opensource.org/licenses/MIT>)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in json-event-parser by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.