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chore (backend-rs): don't use unsafe unwrap() in examples

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naskya 2024-05-29 19:20:42 +09:00 committed by Eana Hufwe
parent d763874049
commit 8741bda5df
1 changed files with 21 additions and 15 deletions
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36
packages/backend-rs/src/database/cache.rs
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@ -56,17 +56,20 @@ fn wildcard(category: Category) -> String {
///
/// ```
/// # use backend_rs::database::cache;
/// # tokio_test::block_on(async {
/// # async fn f() -> Result<(), Box<dyn std::error::Error>> {
/// let key = "apple";
/// let data = "I want to cache this string".to_string();
///
/// // caches the data for 10 seconds
/// cache::set(key, &data, 10).await;
/// cache::set(key, &data, 10).await?;
///
/// // get the cache
/// let cached_data = cache::get::<String>(key).await.unwrap();
/// let cached_data = cache::get::<String>(key).await?;
///
/// assert!(cached_data.is_some());
/// assert_eq!(data, cached_data.unwrap());
/// # })
/// # Ok(())
/// # }
/// ```
pub async fn set<V: for<'a> Deserialize<'a> + Serialize>(
key: &str,
@ -97,21 +100,23 @@ pub async fn set<V: for<'a> Deserialize<'a> + Serialize>(
///
/// ```
/// # use backend_rs::database::cache;
/// # tokio_test::block_on(async {
/// # async fn f() -> Result<(), Box<dyn std::error::Error>> {
/// let key = "banana";
/// let data = "I want to cache this string".to_string();
///
/// // set cache
/// cache::set(key, &data, 10).await.unwrap();
/// cache::set(key, &data, 10).await?;
///
/// // get cache
/// let cached_data = cache::get::<String>(key).await.unwrap();
/// let cached_data = cache::get::<String>(key).await?;
/// assert!(cached_data.is_some());
/// assert_eq!(data, cached_data.unwrap());
///
/// // get nonexistent (or expired) cache
/// let no_cache = cache::get::<String>("nonexistent").await.unwrap();
/// let no_cache = cache::get::<String>("nonexistent").await?;
/// assert!(no_cache.is_none());
/// # })
/// # Ok(())
/// # }
/// ```
pub async fn get<V: for<'a> Deserialize<'a> + Serialize>(key: &str) -> Result<Option<V>, Error> {
let serialized_value: Option<Vec<u8>> = redis_conn().await?.get(prefix_key(key)).await?;
@ -134,21 +139,22 @@ pub async fn get<V: for<'a> Deserialize<'a> + Serialize>(key: &str) -> Result<Op
///
/// ```
/// # use backend_rs::database::cache;
/// # tokio_test::block_on(async {
/// # async fn f() -> Result<(), Box<dyn std::error::Error>> {
/// let key = "chocolate";
/// let value = "I want to cache this string".to_string();
///
/// // set cache
/// cache::set(key, &value, 10).await.unwrap();
/// cache::set(key, &value, 10).await?;
///
/// // delete the cache
/// cache::delete("foo").await.unwrap();
/// cache::delete("nonexistent").await.unwrap(); // this is okay
/// cache::delete("foo").await?;
/// cache::delete("nonexistent").await?; // this is okay
///
/// // the cache is gone
/// let cached_value = cache::get::<String>("foo").await.unwrap();
/// let cached_value = cache::get::<String>("foo").await?;
/// assert!(cached_value.is_none());
/// # })
/// # Ok(())
/// # }
/// ```
pub async fn delete(key: &str) -> Result<(), Error> {
Ok(redis_conn().await?.del(prefix_key(key)).await?)