add: provide more information on psql and redis connection errors

README.md

@@ -37,6 +37,16 @@ Tetratto is very simple once you get the hang of it! At the top of the page (or
 
 All Tetratto instances support reports for communities and posts through the UI. You can just find the ellipsis icon on either and then press "Report" to file a report!
 
+## Debugging
+
+All panics should be reported as a bug report (or on tetratto.com). Panics which cannot be avoided will have an error tag attached to their error message, so you can easily search through your service logs to understand more. All error tags will begin with `ERROR_TETRATTO_`, and will have a more detailed tag suffix.
+
+All current panic tags are listed below:
+
+- `ERROR_TETRATTO_PSQL_CON` - errors in connection to the postgres database
+- `ERROR_TETRATTO_REDIS_CON` - an error in creating the redis connection pool
+- `ERROR_TETRATTO_REDIS_CON_ACQUIRE` - an error in acquiring a redis connection
+
 # Updating
 
 When bumping versions, you _might_ need to run a few SQL scripts in order to get your database up to what the next commit expects. It is recommended to only update from GitHub release, which will list the SQL scripts you need to run to migrate your database.

crates/app/src/routes/api/v1/auth/connections/last_fm.rs

@@ -119,9 +119,10 @@ pub async fn proxy_request(
     }
 
     // ...
-    let res = reqwest::get(format!("https://ws.audioscrobbler.com/2.0/{out}"))
+    let res = match reqwest::get(format!("https://ws.audioscrobbler.com/2.0/{out}")).await {
-        .await
+        Ok(c) => c,
-        .unwrap()
+        Err(e) => return Json(Error::MiscError(e.to_string()).into()),
+    }
     .text()
     .await
     .unwrap();

crates/core/src/cache/redis.rs

@@ -16,12 +16,15 @@ impl Cache for RedisCache {
 
     async fn new() -> Self {
         Self {
-            client: redis::Client::open("redis://127.0.0.1:6379").unwrap(),
+            client: redis::Client::open("redis://127.0.0.1:6379")
+                .expect("ERROR_TETRATTO_REDIS_CON"),
         }
     }
 
     async fn get_con(&self) -> Self::Client {
-        self.client.get_connection().unwrap()
+        self.client
+            .get_connection()
+            .expect("ERROR_TETRATTO_PSQL_CON_ACQUIRE")
     }
 
     async fn get(&self, id: Self::Item) -> Option<String> {

crates/core/src/database/drivers/postgres.rs

@@ -30,7 +30,7 @@ pub struct DataManager(
 impl DataManager {
     /// Obtain a connection to the staging database.
     pub(crate) async fn connect(&self) -> Result<Connection> {
-        Ok(self.3.get().await.unwrap())
+        Ok(self.3.get().await.expect("ERROR_TETRATTO_PSQL_CON"))
     }
 
     /// Create a new [`DataManager`] (and init database).