truefix-core

Runtime-agnostic FIX field/message model and tag-value codec.

Independent use

Yes. This is the smallest dependency for applications that only need FIX messages, fields, framing, SOH encoding/decoding, repeating groups, or message dispatch. It has no Tokio/runtime requirement.

Current scope

• Field, FieldMap, Group, and Message;
• encode/decode with BeginString, BodyLength, and three-digit CheckSum validation;
• frame-length detection, bounded resynchronization, and group-aware decoding;
• typed field accessors, message factories, and MessageCracker dispatch.

This crate does not own sockets, schedules, persistence, or session state.

For a normal engine integration, start with the truefix facade crate. Source and examples are in the workspace guide.

cargo test -p truefix-core