This crate implements the redis::FromRedisValue and redis::ToRedisArgs traits from mitsuhiko / redis-rs for any struct, this allows a seaming less type conversion between rust structs and Redis hash sets. This is more beneficial than JSON encoding the struct and storing the result in a Redis key because when saving as a Redis hash set, sorting algorithms can be performed without having to move data out of the database. There is also the benefit of being able to retrieve just one value of the struct in the database.
To use this crate at it to your dependencies and import the following to procedural macros.
rust
use redis_derive::{FromRedisValue, ToRedisArgs};
Now the these Marcos can be used to implement the traits redis::FromRedisValue and redis::ToRedisArgs for your decorated struct.
```rust
struct MySuperCoolStruct {
firstfield : String,
secondfield : Option
These Procedural macros work for any struct in which every field's type also implements ToRedisArgs so this would be allowed:
rust
struct MySuperCoolStruct {
firstfield : String,
secondfield : Option
struct MySecondSuperCoolStruct { fourthfield : Strin, innerstruct : MySuperCoolStruct } ```
At this point, it sadly doesn't support Enums.
rust
#[derive(RedisGetter, RedisSetter)]
struct MySuperCoolStruct {
first_field : String,
second_field : Option<i64>,
third_field : Vec<String>
}
fn somefn() {
let mut redis_client = /* geting some connection to redis db */;
let first_field : String = MySuperCoolStruct::first_field::get(&redis_client, key : "MyRedisKeyForStruct");
MySuperCoolStruct::first_field::set(&redis_client, key : "MyRedisKeyForStruct", value : String::from("test"));
}