Issue:
Bug: audit trail - add webhook events



### Webhook Events Audit trail

Build a webhook events audit trail endpoint for fetching all events from `webhook_events_audit` table for ops audit trail.

![Image](https://github.com/juspay/hyperswitch/assets/21202349/3ae37c76-117e-46af-8e5c-3c9b74410efa)


can refer to the existing API Events audit trail implementation [here](https://github.com/juspay/hyperswitch/blob/main/crates/analytics/src/api_event/events.rs)




```
curl --location 'https://sandbox.hyperswitch.io/analytics/v1/api_event_logs?type=Payment&payment_id=pay_yEsFwSqi6Umv8LVGFFPD' \
--header 'Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiNjBmZDAyNzAtNTE1MS00MWVhLWJiMWItMGY0ZWExZGNmYjQzIiwibWVyY2hhbnRfaWQiOiJtZXJjaGFudF8xNjg5OTI0ODQzIiwicm9sZV9pZCI6Im1lcmNoYW50X2FkbWluIiwiZXhwIjoxNzA0ODgyODg5LCJvcmdfaWQiOiJvcmdfRk5ZWjhQaE5CQjdtV1hodWxWQW0ifQ.LCgIW8uMGVo2WRFt2irzQ1D8sHuRBSbeRkTGt1qxsXM'
```


The API contract would involve a simple `GET analytics/v1/webhook_event_logs` path.
with similar response format as above curl request

Pull request description:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [x] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
adding GET api for query to fetch outgoing webhook events log by specified filters
**Filter:**
```payment_id: String```
```event_id: Option<String>```
```refund_id: Option<String>```
```dispute_id: Option<String>```
```mandate_id: Option<String>```
```payment_method_id: Option<String>```
```attempt_id: Option<String>```

### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

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1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
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## Motivation and Context
<!--
Why is this change required? What problem does it solve?
If it fixes an open issue, please link to the issue here.

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can focus on the implementation (unless it is an obvious bug or documentation fix
that will have little conversation).
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## How did you test it?
<!--
Did you write an integration/unit/API test to verify the code changes?
Or did you test this change manually (provide relevant screenshots)?
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**Api Endpoint:** ```http://localhost:8080/analytics/v1/outgoing_webhook_event_logs```
curl attached below with sample response tested on local machine

## Checklist
<!-- Put an `x` in the boxes that apply -->

- [x] I formatted the code `cargo +nightly fmt --all`
- [x] I addressed lints thrown by `cargo clippy`
- [x] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible
- [ ] I added a [CHANGELOG](/CHANGELOG.md) entry if applicable


Testing:

**Api Endpoint:** ```http://localhost:8080/analytics/v1/outgoing_webhook_event_logs```
curl attached below with sample response tested on local machine

Patch:
diff --git a/crates/analytics/src/clickhouse.rs b/crates/analytics/src/clickhouse.rs
index 964486c9364..b8fd5e6a35d 100644
--- a/crates/analytics/src/clickhouse.rs
+++ b/crates/analytics/src/clickhouse.rs
@@ -21,6 +21,7 @@ use crate::{
         filters::ApiEventFilter,
         metrics::{latency::LatencyAvg, ApiEventMetricRow},
     },
+    outgoing_webhook_event::events::OutgoingWebhookLogsResult,
     sdk_events::events::SdkEventsResult,
     types::TableEngine,
 };
@@ -120,6 +121,7 @@ impl AnalyticsDataSource for ClickhouseClient {
             }
             AnalyticsCollection::SdkEvents => TableEngine::BasicTree,
             AnalyticsCollection::ApiEvents => TableEngine::BasicTree,
+            AnalyticsCollection::OutgoingWebhookEvent => TableEngine::BasicTree,
         }
     }
 }
@@ -145,6 +147,10 @@ impl super::sdk_events::events::SdkEventsFilterAnalytics for ClickhouseClient {}
 impl super::api_event::events::ApiLogsFilterAnalytics for ClickhouseClient {}
 impl super::api_event::filters::ApiEventFilterAnalytics for ClickhouseClient {}
 impl super::api_event::metrics::ApiEventMetricAnalytics for ClickhouseClient {}
+impl super::outgoing_webhook_event::events::OutgoingWebhookLogsFilterAnalytics
+    for ClickhouseClient
+{
+}
 
 #[derive(Debug, serde::Serialize)]
 struct CkhQuery {
@@ -302,6 +308,18 @@ impl TryInto<ApiEventFilter> for serde_json::Value {
     }
 }
 
+impl TryInto<OutgoingWebhookLogsResult> for serde_json::Value {
+    type Error = Report<ParsingError>;
+
+    fn try_into(self) -> Result<OutgoingWebhookLogsResult, Self::Error> {
+        serde_json::from_value(self)
+            .into_report()
+            .change_context(ParsingError::StructParseFailure(
+                "Failed to parse OutgoingWebhookLogsResult in clickhouse results",
+            ))
+    }
+}
+
 impl ToSql<ClickhouseClient> for PrimitiveDateTime {
     fn to_sql(&self, _table_engine: &TableEngine) -> error_stack::Result<String, ParsingError> {
         let format =
@@ -326,6 +344,7 @@ impl ToSql<ClickhouseClient> for AnalyticsCollection {
             Self::SdkEvents => Ok("sdk_events_dist".to_string()),
             Self::ApiEvents => Ok("api_audit_log".to_string()),
             Self::PaymentIntent => Ok("payment_intents_dist".to_string()),
+            Self::OutgoingWebhookEvent => Ok("outgoing_webhook_events_audit".to_string()),
         }
     }
 }
diff --git a/crates/analytics/src/lib.rs b/crates/analytics/src/lib.rs
index 24da77f84f2..8529807a1a1 100644
--- a/crates/analytics/src/lib.rs
+++ b/crates/analytics/src/lib.rs
@@ -7,6 +7,7 @@ mod query;
 pub mod refunds;
 
 pub mod api_event;
+pub mod outgoing_webhook_event;
 pub mod sdk_events;
 mod sqlx;
 mod types;
diff --git a/crates/analytics/src/outgoing_webhook_event.rs b/crates/analytics/src/outgoing_webhook_event.rs
new file mode 100644
index 00000000000..9919d8bbb0f
--- /dev/null
+++ b/crates/analytics/src/outgoing_webhook_event.rs
@@ -0,0 +1,6 @@
+mod core;
+pub mod events;
+
+pub trait OutgoingWebhookEventAnalytics: events::OutgoingWebhookLogsFilterAnalytics {}
+
+pub use self::core::outgoing_webhook_events_core;
diff --git a/crates/analytics/src/outgoing_webhook_event/core.rs b/crates/analytics/src/outgoing_webhook_event/core.rs
new file mode 100644
index 00000000000..5024cc70ec1
--- /dev/null
+++ b/crates/analytics/src/outgoing_webhook_event/core.rs
@@ -0,0 +1,27 @@
+use api_models::analytics::outgoing_webhook_event::OutgoingWebhookLogsRequest;
+use common_utils::errors::ReportSwitchExt;
+use error_stack::{IntoReport, ResultExt};
+
+use super::events::{get_outgoing_webhook_event, OutgoingWebhookLogsResult};
+use crate::{errors::AnalyticsResult, types::FiltersError, AnalyticsProvider};
+
+pub async fn outgoing_webhook_events_core(
+    pool: &AnalyticsProvider,
+    req: OutgoingWebhookLogsRequest,
+    merchant_id: String,
+) -> AnalyticsResult<Vec<OutgoingWebhookLogsResult>> {
+    let data = match pool {
+        AnalyticsProvider::Sqlx(_) => Err(FiltersError::NotImplemented(
+            "Outgoing Webhook Events Logs not implemented for SQLX",
+        ))
+        .into_report()
+        .attach_printable("SQL Analytics is not implemented for Outgoing Webhook Events"),
+        AnalyticsProvider::Clickhouse(ckh_pool)
+        | AnalyticsProvider::CombinedSqlx(_, ckh_pool)
+        | AnalyticsProvider::CombinedCkh(_, ckh_pool) => {
+            get_outgoing_webhook_event(&merchant_id, req, ckh_pool).await
+        }
+    }
+    .switch()?;
+    Ok(data)
+}
diff --git a/crates/analytics/src/outgoing_webhook_event/events.rs b/crates/analytics/src/outgoing_webhook_event/events.rs
new file mode 100644
index 00000000000..e742387e1eb
--- /dev/null
+++ b/crates/analytics/src/outgoing_webhook_event/events.rs
@@ -0,0 +1,90 @@
+use api_models::analytics::{outgoing_webhook_event::OutgoingWebhookLogsRequest, Granularity};
+use common_utils::errors::ReportSwitchExt;
+use error_stack::ResultExt;
+use time::PrimitiveDateTime;
+
+use crate::{
+    query::{Aggregate, GroupByClause, QueryBuilder, ToSql, Window},
+    types::{AnalyticsCollection, AnalyticsDataSource, FiltersError, FiltersResult, LoadRow},
+};
+pub trait OutgoingWebhookLogsFilterAnalytics: LoadRow<OutgoingWebhookLogsResult> {}
+
+pub async fn get_outgoing_webhook_event<T>(
+    merchant_id: &String,
+    query_param: OutgoingWebhookLogsRequest,
+    pool: &T,
+) -> FiltersResult<Vec<OutgoingWebhookLogsResult>>
+where
+    T: AnalyticsDataSource + OutgoingWebhookLogsFilterAnalytics,
+    PrimitiveDateTime: ToSql<T>,
+    AnalyticsCollection: ToSql<T>,
+    Granularity: GroupByClause<T>,
+    Aggregate<&'static str>: ToSql<T>,
+    Window<&'static str>: ToSql<T>,
+{
+    let mut query_builder: QueryBuilder<T> =
+        QueryBuilder::new(AnalyticsCollection::OutgoingWebhookEvent);
+    query_builder.add_select_column("*").switch()?;
+
+    query_builder
+        .add_filter_clause("merchant_id", merchant_id)
+        .switch()?;
+    query_builder
+        .add_filter_clause("payment_id", query_param.payment_id)
+        .switch()?;
+
+    if let Some(event_id) = query_param.event_id {
+        query_builder
+            .add_filter_clause("event_id", &event_id)
+            .switch()?;
+    }
+    if let Some(refund_id) = query_param.refund_id {
+        query_builder
+            .add_filter_clause("refund_id", &refund_id)
+            .switch()?;
+    }
+    if let Some(dispute_id) = query_param.dispute_id {
+        query_builder
+            .add_filter_clause("dispute_id", &dispute_id)
+            .switch()?;
+    }
+    if let Some(mandate_id) = query_param.mandate_id {
+        query_builder
+            .add_filter_clause("mandate_id", &mandate_id)
+            .switch()?;
+    }
+    if let Some(payment_method_id) = query_param.payment_method_id {
+        query_builder
+            .add_filter_clause("payment_method_id", &payment_method_id)
+            .switch()?;
+    }
+    if let Some(attempt_id) = query_param.attempt_id {
+        query_builder
+            .add_filter_clause("attempt_id", &attempt_id)
+            .switch()?;
+    }
+    //TODO!: update the execute_query function to return reports instead of plain errors...
+    query_builder
+        .execute_query::<OutgoingWebhookLogsResult, _>(pool)
+        .await
+        .change_context(FiltersError::QueryBuildingError)?
+        .change_context(FiltersError::QueryExecutionFailure)
+}
+#[derive(Debug, serde::Serialize, serde::Deserialize)]
+pub struct OutgoingWebhookLogsResult {
+    pub merchant_id: String,
+    pub event_id: String,
+    pub event_type: String,
+    pub outgoing_webhook_event_type: String,
+    pub payment_id: String,
+    pub refund_id: Option<String>,
+    pub attempt_id: Option<String>,
+    pub dispute_id: Option<String>,
+    pub payment_method_id: Option<String>,
+    pub mandate_id: Option<String>,
+    pub content: Option<String>,
+    pub is_error: bool,
+    pub error: Option<String>,
+    #[serde(with = "common_utils::custom_serde::iso8601")]
+    pub created_at: PrimitiveDateTime,
+}
diff --git a/crates/analytics/src/sqlx.rs b/crates/analytics/src/sqlx.rs
index cdd2647e4e7..e32b85a5367 100644
--- a/crates/analytics/src/sqlx.rs
+++ b/crates/analytics/src/sqlx.rs
@@ -429,6 +429,8 @@ impl ToSql<SqlxClient> for AnalyticsCollection {
             Self::ApiEvents => Err(error_stack::report!(ParsingError::UnknownError)
                 .attach_printable("ApiEvents table is not implemented for Sqlx"))?,
             Self::PaymentIntent => Ok("payment_intent".to_string()),
+            Self::OutgoingWebhookEvent => Err(error_stack::report!(ParsingError::UnknownError)
+                .attach_printable("OutgoingWebhookEvents table is not implemented for Sqlx"))?,
         }
     }
 }
diff --git a/crates/analytics/src/types.rs b/crates/analytics/src/types.rs
index 8b1bdbd1ab9..8da4655e255 100644
--- a/crates/analytics/src/types.rs
+++ b/crates/analytics/src/types.rs
@@ -26,6 +26,7 @@ pub enum AnalyticsCollection {
     SdkEvents,
     ApiEvents,
     PaymentIntent,
+    OutgoingWebhookEvent,
 }
 
 #[allow(dead_code)]
diff --git a/crates/api_models/src/analytics.rs b/crates/api_models/src/analytics.rs
index 0263427b0fd..e0d3fa671b6 100644
--- a/crates/api_models/src/analytics.rs
+++ b/crates/api_models/src/analytics.rs
@@ -12,6 +12,7 @@ use self::{
 pub use crate::payments::TimeRange;
 
 pub mod api_event;
+pub mod outgoing_webhook_event;
 pub mod payments;
 pub mod refunds;
 pub mod sdk_events;
diff --git a/crates/api_models/src/analytics/outgoing_webhook_event.rs b/crates/api_models/src/analytics/outgoing_webhook_event.rs
new file mode 100644
index 00000000000..b6f0aca056f
--- /dev/null
+++ b/crates/api_models/src/analytics/outgoing_webhook_event.rs
@@ -0,0 +1,10 @@
+#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
+pub struct OutgoingWebhookLogsRequest {
+    pub payment_id: String,
+    pub event_id: Option<String>,
+    pub refund_id: Option<String>,
+    pub dispute_id: Option<String>,
+    pub mandate_id: Option<String>,
+    pub payment_method_id: Option<String>,
+    pub attempt_id: Option<String>,
+}
diff --git a/crates/api_models/src/events.rs b/crates/api_models/src/events.rs
index 457d3fde05b..6d9bd5db342 100644
--- a/crates/api_models/src/events.rs
+++ b/crates/api_models/src/events.rs
@@ -17,7 +17,9 @@ use common_utils::{
 
 use crate::{
     admin::*,
-    analytics::{api_event::*, sdk_events::*, *},
+    analytics::{
+        api_event::*, outgoing_webhook_event::OutgoingWebhookLogsRequest, sdk_events::*, *,
+    },
     api_keys::*,
     cards_info::*,
     disputes::*,
@@ -89,7 +91,8 @@ impl_misc_api_event_type!(
     ApiLogsRequest,
     GetApiEventMetricRequest,
     SdkEventsRequest,
-    ReportRequest
+    ReportRequest,
+    OutgoingWebhookLogsRequest
 );
 
 #[cfg(feature = "stripe")]
diff --git a/crates/router/src/analytics.rs b/crates/router/src/analytics.rs
index f31e908e0dc..c62de5bd29a 100644
--- a/crates/router/src/analytics.rs
+++ b/crates/router/src/analytics.rs
@@ -4,7 +4,7 @@ pub mod routes {
     use actix_web::{web, Responder, Scope};
     use analytics::{
         api_event::api_events_core, errors::AnalyticsError, lambda_utils::invoke_lambda,
-        sdk_events::sdk_events_core,
+        outgoing_webhook_event::outgoing_webhook_events_core, sdk_events::sdk_events_core,
     };
     use api_models::analytics::{
         GenerateReportRequest, GetApiEventFiltersRequest, GetApiEventMetricRequest,
@@ -71,6 +71,10 @@ pub mod routes {
                     )
                     .service(web::resource("api_event_logs").route(web::get().to(get_api_events)))
                     .service(web::resource("sdk_event_logs").route(web::post().to(get_sdk_events)))
+                    .service(
+                        web::resource("outgoing_webhook_event_logs")
+                            .route(web::get().to(get_outgoing_webhook_events)),
+                    )
                     .service(
                         web::resource("filters/api_events")
                             .route(web::post().to(get_api_event_filters)),
@@ -314,6 +318,30 @@ pub mod routes {
         .await
     }
 
+    pub async fn get_outgoing_webhook_events(
+        state: web::Data<AppState>,
+        req: actix_web::HttpRequest,
+        json_payload: web::Query<
+            api_models::analytics::outgoing_webhook_event::OutgoingWebhookLogsRequest,
+        >,
+    ) -> impl Responder {
+        let flow = AnalyticsFlow::GetOutgoingWebhookEvents;
+        Box::pin(api::server_wrap(
+            flow,
+            state,
+            &req,
+            json_payload.into_inner(),
+            |state, auth: AuthenticationData, req| async move {
+                outgoing_webhook_events_core(&state.pool, req, auth.merchant_account.merchant_id)
+                    .await
+                    .map(ApplicationResponse::Json)
+            },
+            &auth::JWTAuth(Permission::Analytics),
+            api_locking::LockAction::NotApplicable,
+        ))
+        .await
+    }
+
     pub async fn get_sdk_events(
         state: web::Data<AppState>,
         req: actix_web::HttpRequest,
diff --git a/crates/router_env/src/lib.rs b/crates/router_env/src/lib.rs
index 3c7ba8b93df..0127d07170f 100644
--- a/crates/router_env/src/lib.rs
+++ b/crates/router_env/src/lib.rs
@@ -52,6 +52,7 @@ pub enum AnalyticsFlow {
     GenerateRefundReport,
     GetApiEventMetrics,
     GetApiEventFilters,
+    GetOutgoingWebhookEvents,
 }
 
 impl FlowMetric for AnalyticsFlow {}