Deserializing a fixer_upper::Message from json results in a loosely typed struct. all of the body fields are optional. We can do better. By examining the MsgType field in the header struct, we can better determine what fields are required and remove the Option<_> wrapper from them.
The Header and Trailer objects are common between all fix messages, but the body fields are different.
Requirements
- Create a way to convert a
fixer_upper::Message into a more strongly typed struct. The fields that are required, determined by the MsgType should not be Option<_>. When converting, if a required field is missing, an error should be returned [1].
Footnotes
- Rusts
std::convert::TryInto and std::convert::TryFrom may be a good path to accomplish this.
Deserializing a
fixer_upper::Messagefrom json results in a loosely typed struct. all of the body fields are optional. We can do better. By examining theMsgTypefield in the header struct, we can better determine what fields are required and remove theOption<_>wrapper from them.The
HeaderandTrailerobjects are common between all fix messages, but the body fields are different.Requirements
fixer_upper::Messageinto a more strongly typed struct. The fields that are required, determined by theMsgTypeshould not beOption<_>. When converting, if a required field is missing, an error should be returned [1].Footnotes
std::convert::TryIntoandstd::convert::TryFrommay be a good path to accomplish this.