VelocyPack format

[davechallis]

In case it's of any use/interest, I've started work on a Rust implementation of the VelocyPack format in Rust at: https://github.com/davechallis/rust-velocypack

It's currently got some basic serialization working, currently working on the deserialization part (it's got a long way to go with documentation, decent error messages etc. though of course).

It's implemented using serde, so should hopefully end up not being too painful to work with.

[fMeow]

Great! But how can I ask the server to send/receive data in velocy pack?

[fMeow]

I find the documentation I need at velocystream. That's where to strat off.

[davechallis]

Great, glad you found it, it took me a while to find those documents too.

In case it helps, I also used that document to create velocystream data structures in Rust too, here: https://github.com/davechallis/rust-velocystream

It's fairly minimal (this is all the code: https://github.com/davechallis/rust-velocystream/blob/master/src/lib.rs), but might save some time.

[fMeow]

Wow, thank you so much!

[inzanez]

Just out of interest: I assume that supporting VelocyPack would bring performance boosts? Or is there more about it?

[fMeow]

I think VelocyPack can save network bandwidth to some extent.

[davechallis]

@inzanez @fMeow yup, it's more compact and faster to serialise, but one of the big advantages is that ArangoDB itself can work with velocypack data internally without conversion, so it's much more efficient from the server side to consume/produce.

There's more detailed description on some of the advantages and design here: https://github.com/arangodb/velocypack#motivation

[inzanez]

@davechallis Ok, that sounds quite nice. I will be happy to participate on the VelocyPack implementation if required. I guess we'd need a full implementation so that it could be used.