impl fromstr for query

src/database/lang.rs

@@ -234,6 +234,15 @@ impl TryFrom<&lexpr::Value> for Query {
     }
 }
 
+impl FromStr for Query {
+    type Err = anyhow::Error;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let sexp = lexpr::from_str(s)?;
+        Query::try_from(&sexp)
+    }
+}
+
 impl Query {
     pub(crate) fn to_sqlite_predicates(&self) -> Result<Box<Predicate>> {
         match self {

src/routes.rs

@@ -89,8 +89,7 @@ pub async fn get_query(
 ) -> Result<HttpResponse, Error> {
     let connection = state.db_pool.get().map_err(ErrorInternalServerError)?;
 
-    let sexp = lexpr::from_str(info.query.as_str()).map_err(ErrorBadRequest)?;
-    let in_query = Query::try_from(&sexp).map_err(ErrorBadRequest)?;
+    let in_query: Query = info.query.as_str().parse().map_err(ErrorBadRequest)?;
     let entries = query(&connection, in_query).map_err(ErrorInternalServerError)?;
     let mut result: HashMap<String, Entry> = HashMap::new();
     for entry in entries {