Simple by key.
Powerful
with SQL.

let products = client.table("products");

let write = products.put(&json!({
    "name": "Keyboard",
    "price": 99.5,
    "brand": "Logitech"
}));

let id = write.await?; // Durable acknowledgement.
let document = products.get(&id).await?;

let cart_key = b"cart:customer-42";

// Save the cart for 30 minutes.
client.put(
    cart_key,
    br#"{"items":[{"sku":"keyboard-01","quantity":2}]}"#,
    Some(std::time::Duration::from_secs(30 * 60)),
).await?;

// Load it when the customer returns.
// A recent write may not be visible to the reader yet.
let cart_bytes = client.get(cart_key).await?;

// After checkout is complete, remove the saved cart.
client.delete(cart_key).await?;

use serde_json::json;

let products = client.table("products");

// 1. Write JSON. Await a durable acknowledgement.
let write = products.put(&json!({
    "name": "Keyboard",
    "price": 99.5,
    "brand": "Logitech"
}));
let id = write.await?;

// 2. Read the original document by ID.
// May be None until the reader catches up.
let document = products.get(&id).await?;

// 3. Query the published table with real SQL.
// The latest write may not be published yet.
let result = products.query(
    "SELECT value->>'name' AS name,
            TRY_CAST(value->>'price' AS DOUBLE) AS price
     FROM products
     WHERE TRY_CAST(value->>'price' AS DOUBLE) < 100
     ORDER BY price"
).await?;

println!("{}", serde_json::to_string(&result.rows)?);

[
  {
    "name": "Keyboard",
    "price": 99.5
  }
]