.....

web/src/routes/dashboard/mod.rs

@@ -17,6 +17,7 @@ pub struct Reminder {
     attachment: Option<Vec<u8>>,
     attachment_name: Option<String>,
     avatar: Option<String>,
+    #[serde(with = "string")]
     channel: u64,
     content: String,
     embed_author: String,
@@ -43,6 +44,31 @@ pub struct Reminder {
     utc_time: NaiveDateTime,
 }
 
+// https://github.com/serde-rs/json/issues/329#issuecomment-305608405
+mod string {
+    use std::fmt::Display;
+    use std::str::FromStr;
+
+    use serde::{de, Deserialize, Deserializer, Serializer};
+
+    pub fn serialize<T, S>(value: &T, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        T: Display,
+        S: Serializer,
+    {
+        serializer.collect_str(value)
+    }
+
+    pub fn deserialize<'de, T, D>(deserializer: D) -> Result<T, D::Error>
+    where
+        T: FromStr,
+        T::Err: Display,
+        D: Deserializer<'de>,
+    {
+        String::deserialize(deserializer)?.parse().map_err(de::Error::custom)
+    }
+}
+
 #[derive(Deserialize)]
 pub struct DeleteReminder {
     uid: String,