Function to_item

pub fn to_item<T, I>(value: T) -> Result<I>
where
    T: Serialize,
    I: From<Item>,

Convert a T into an Item.

This is frequently used when serializing an entire data structure to be sent to DynamoDB.

#[derive(Serialize, Deserialize)]
pub struct User {
    id: String,
    name: String,
    age: u8,
};

// Create a user
let user = User {
    id: "fSsgVtal8TpP".to_string(),
    name: "Arthur Dent".to_string(),
    age: 42,
};

// Turn it into an item that rusoto understands
let item = to_item(user)?;

// And write it!
client.put_item().table_name("users").set_item(Some(item)).send().await?;