How to use binary/bytes/stringbuffer type

[thomas9911]

I'm making a module that wants to read/write non-utf8 bytes to Redis. However the RedisKeyWritable read / write function only accept &str and also the higher level call function only accepts strings.

Is there a way to do this currently (without using the raw C bindings) ?

Currently i worked around this by creating my own type and using the set_value / get_value functions.

[gkorland]

@thomas9911 you're right it seems like a left over from the original API.
The original API didn't work with byte safe RedisString but with String/str.
We should update the API to support RedisString (PR is welcome)

[tBuLi12]

Since I also bumped into this missing functionality the other day I sketched a quick draft that just adds byte-slice-accepting versions of the original methods.

Although that might work, perhaps a more generic interface should be implemented (tho even then something like
T: Into<Vec<u8>> cannot replace &str in the existing api, since &str accepts &&str and T: Into<Vec<u8>> does not)

[thomas9911]

I was also working on it 😅

[tBuLi12]

Oh damn, sorry - well, mine was just a sketch and I see your version accepts RedisStrings rather than byte slices (as it should) so nvm that 😅

Idk about breaking the public API, but keeping the default read & write with plain old strings as arguments does not seem like good long-term choice either...

[thomas9911]

Maybe we could add a trait that can convert rust types into RedisString and let these functions accept this (so &str will keep working) 🤔

[tBuLi12]

Well we could make the api accept T: Into<RedisString> (at least in places where the underlying string is cloned anyway), and also add an impl Into<RedisString> for &str, but I'm not sure if that keeps it completely backwards compatible