Unify duration parsing in admin api and ingress

crates/admin/src/rest_api/services.rs

@@ -96,12 +96,12 @@ pub async fn modify_service<V>(
     }
     if let Some(new_idempotency_retention) = idempotency_retention {
         modify_request.push(ModifyServiceChange::IdempotencyRetention(
-            new_idempotency_retention.into(),
+            new_idempotency_retention,
         ));
     }
     if let Some(new_workflow_completion_retention) = workflow_completion_retention {
         modify_request.push(ModifyServiceChange::WorkflowCompletionRetention(
-            new_workflow_completion_retention.into(),
+            new_workflow_completion_retention,
         ));
     }
 

crates/ingress-http/Cargo.toml

@@ -16,6 +16,7 @@ options_schema = ["dep:schemars"]
 restate-core = { workspace = true }
 restate-errors = { workspace = true }
 restate-ingress-dispatcher = { workspace = true }
+restate-serde-util = { workspace = true }
 restate-schema-api = { workspace = true, features = ["service", "invocation_target"]}
 restate-types = { workspace = true }
 restate-service-protocol = { workspace = true, features = [ "awakeable-id" ] }
@@ -60,7 +61,6 @@ schemars = { workspace = true, optional = true }
 thiserror = { workspace = true }
 urlencoding = "2.1"
 pin-project-lite = "0.2.13"
-iso8601 = "0.6.1"
 humantime = { workspace = true }
 
 [dev-dependencies]

crates/ingress-http/src/handler/service_handler.rs

@@ -26,7 +26,9 @@ use restate_types::invocation::{
     Header, InvocationTarget, InvocationTargetType, ServiceInvocation, Source, SpanRelation,
     WorkflowHandlerType,
 };
-use serde::Serialize;
+use serde::de::IntoDeserializer;
+use serde::{Deserialize, Serialize};
+use serde_with::serde_as;
 use std::time::{Duration, Instant, SystemTime};
 use tracing::{info, trace, warn, Instrument};
 
@@ -315,6 +317,16 @@ fn parse_headers(headers: HeaderMap) -> Result<Vec<Header>, HandlerError> {
         .collect()
 }
 
+#[serde_as]
+#[derive(Deserialize)]
+#[serde(transparent)]
+struct DurationQueryParam(
+    #[serde_as(
+        as = "serde_with::PickFirst<(restate_serde_util::DurationString, serde_with::DurationMilliSeconds)>"
+    )]
+    Duration,
+);
+
 fn parse_delay(query: Option<&str>) -> Result<Option<Duration>, HandlerError> {
     if query.is_none() {
         return Ok(None);
@@ -323,9 +335,11 @@ fn parse_delay(query: Option<&str>) -> Result<Option<Duration>, HandlerError> {
     for (k, v) in url::form_urlencoded::parse(query.unwrap().as_bytes()) {
         if k.eq_ignore_ascii_case(DELAY_QUERY_PARAM) {
             return Ok(Some(
-                iso8601::duration(v.as_ref())
-                    .map_err(HandlerError::BadDelayDuration)?
-                    .into(),
+                DurationQueryParam::deserialize(v.as_ref().into_deserializer())
+                    .map_err(|e: serde::de::value::Error| {
+                        HandlerError::BadDelayDuration(e.to_string())
+                    })?
+                    .0,
             ));
         }
         if k.eq_ignore_ascii_case(DELAYSEC_QUERY_PARAM) {

crates/meta-rest-model/src/services.rs

@@ -11,6 +11,7 @@
 use bytes::Bytes;
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
+use std::time::Duration;
 
 // Export schema types to be used by other crates without exposing the fact
 // that we are using proxying to restate-schema-api or restate-types
@@ -38,19 +39,25 @@ pub struct ModifyServiceRequest {
     ///
     /// Modify the retention of idempotent requests for this service.
     ///
-    /// Can be configured using the [`humantime`](https://docs.rs/humantime/latest/humantime/fn.parse_duration.html) format.
-    #[serde(default, with = "serde_with::As::<Option<serde_with::DisplayFromStr>>")]
+    /// Can be configured using the [`humantime`](https://docs.rs/humantime/latest/humantime/fn.parse_duration.html) format or the ISO8601.
+    #[serde(
+        default,
+        with = "serde_with::As::<Option<restate_serde_util::DurationString>>"
+    )]
     #[cfg_attr(feature = "schema", schemars(with = "Option<String>"))]
-    pub idempotency_retention: Option<humantime::Duration>,
+    pub idempotency_retention: Option<Duration>,
 
     /// # Workflow completion retention
     ///
     /// Modify the retention of the workflow completion. This can be modified only for workflow services!
     ///
-    /// Can be configured using the [`humantime`](https://docs.rs/humantime/latest/humantime/fn.parse_duration.html) format.
-    #[serde(default, with = "serde_with::As::<Option<serde_with::DisplayFromStr>>")]
+    /// Can be configured using the [`humantime`](https://docs.rs/humantime/latest/humantime/fn.parse_duration.html) format or the ISO8601.
+    #[serde(
+        default,
+        with = "serde_with::As::<Option<restate_serde_util::DurationString>>"
+    )]
     #[cfg_attr(feature = "schema", schemars(with = "Option<String>"))]
-    pub workflow_completion_retention: Option<humantime::Duration>,
+    pub workflow_completion_retention: Option<Duration>,
 }
 
 #[cfg_attr(feature = "schema", derive(schemars::JsonSchema))]

crates/serde-util/Cargo.toml

@@ -16,6 +16,8 @@ proto = ["dep:prost", "dep:bytes"]
 bytes = { workspace = true, optional = true }
 bytesize = { version = "1.3.0" }
 http = { workspace = true }
+humantime = { workspace = true }
+iso8601 = "0.6.1"
 prost = { workspace = true, optional = true }
 schemars = { workspace = true, optional = true }
 serde = { workspace = true }

crates/serde-util/src/duration.rs

@@ -0,0 +1,107 @@
+// Copyright (c) 2024 -  Restate Software, Inc., Restate GmbH.
+// All rights reserved.
+//
+// Use of this software is governed by the Business Source License
+// included in the LICENSE file.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0.
+
+// Copyright (c) 2024 -  Restate Software, Inc., Restate GmbH.
+// All rights reserved.
+//
+// Use of this software is governed by the Business Source License
+// included in the LICENSE file.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0.
+
+use serde::de::Error;
+use serde::{Deserialize, Deserializer, Serializer};
+use serde_with::{DeserializeAs, SerializeAs};
+
+/// Serializable/Deserializable duration to use with serde_with.
+///
+/// When serializing the humantime format is used.
+///
+/// When deserializing, the following formats are accepted:
+///
+/// * ISO8601 durations
+/// * Humantime durations
+pub struct DurationString;
+
+impl<'de> DeserializeAs<'de, std::time::Duration> for DurationString {
+    fn deserialize_as<D>(deserializer: D) -> Result<std::time::Duration, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        if s.starts_with('P') {
+            Ok(iso8601::duration(&s).map_err(Error::custom)?.into())
+        } else {
+            humantime::parse_duration(&s).map_err(Error::custom)
+        }
+    }
+}
+
+impl SerializeAs<std::time::Duration> for DurationString {
+    fn serialize_as<S>(source: &std::time::Duration, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        serializer.collect_str(&humantime::Duration::from(*source))
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use serde::{Deserialize, Serialize};
+
+    use serde_with::serde_as;
+
+    #[serde_as]
+    #[derive(Serialize, Deserialize)]
+    #[serde(transparent)]
+    struct MyDuration(#[serde_as(as = "DurationString")] std::time::Duration);
+
+    #[test]
+    fn serialize_humantime() {
+        let d = std::time::Duration::from_secs(60 * 23);
+
+        let result_string =
+            serde_json::from_str::<String>(&serde_json::to_string(&MyDuration(d)).unwrap())
+                .unwrap();
+
+        assert_eq!(result_string, humantime::Duration::from(d).to_string());
+    }
+
+    #[test]
+    fn deserialize_iso8601() {
+        let d = std::time::Duration::from_secs(10);
+
+        assert_eq!(
+            serde_json::from_value::<MyDuration>(serde_json::Value::String("PT10S".to_owned()))
+                .unwrap()
+                .0,
+            d
+        );
+    }
+
+    #[test]
+    fn deserialize_humantime() {
+        let d = std::time::Duration::from_secs(60 * 23);
+
+        assert_eq!(
+            serde_json::from_value::<MyDuration>(serde_json::Value::String(
+                humantime::Duration::from(d).to_string()
+            ))
+            .unwrap()
+            .0,
+            d
+        );
+    }
+}

crates/serde-util/src/lib.rs

@@ -14,9 +14,11 @@ mod header_map;
 mod proto;
 
 pub mod default;
+mod duration;
 pub mod header_value;
 
 pub use byte_count::*;
+pub use duration::DurationString;
 pub use header_map::SerdeableHeaderHashMap;
 pub use header_value::HeaderValueSerde;
 #[cfg(feature = "proto")]