chore: use Bytes instead of string in bulk ingestion (#5717)

chore: use bytes instead of string in bulk log ingestion

src/servers/src/http/event.rs

@@ -12,12 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use std::io::BufRead;
 use std::str::FromStr;
 use std::sync::Arc;
 use std::time::Instant;
 
 use api::v1::RowInsertRequests;
 use async_trait::async_trait;
+use axum::body::Bytes;
 use axum::extract::{FromRequest, Multipart, Path, Query, Request, State};
 use axum::http::header::CONTENT_TYPE;
 use axum::http::{HeaderMap, StatusCode};
@@ -389,8 +391,8 @@ pub struct PipelineDryrunParams {
 /// Check if the payload is valid json
 /// Check if the payload contains pipeline or pipeline_name and data
 /// Return Some if valid, None if invalid
-fn check_pipeline_dryrun_params_valid(payload: &str) -> Option<PipelineDryrunParams> {
-    match serde_json::from_str::<PipelineDryrunParams>(payload) {
+fn check_pipeline_dryrun_params_valid(payload: &Bytes) -> Option<PipelineDryrunParams> {
+    match serde_json::from_slice::<PipelineDryrunParams>(payload) {
         // payload with pipeline or pipeline_name and data is array
         Ok(params) if params.pipeline.is_some() || params.pipeline_name.is_some() => Some(params),
         // because of the pipeline_name or pipeline is required
@@ -432,7 +434,7 @@ pub async fn pipeline_dryrun(
     Query(query_params): Query<LogIngesterQueryParams>,
     Extension(mut query_ctx): Extension<QueryContext>,
     TypedHeader(content_type): TypedHeader<ContentType>,
-    payload: String,
+    payload: Bytes,
 ) -> Result<Response> {
     let handler = log_state.log_handler;
 
@@ -514,7 +516,7 @@ pub async fn log_ingester(
     Extension(mut query_ctx): Extension<QueryContext>,
     TypedHeader(content_type): TypedHeader<ContentType>,
     headers: HeaderMap,
-    payload: String,
+    payload: Bytes,
 ) -> Result<HttpResponse> {
     // validate source and payload
     let source = query_params.source.as_deref();
@@ -565,40 +567,45 @@ pub async fn log_ingester(
 
 fn extract_pipeline_value_by_content_type(
     content_type: ContentType,
-    payload: String,
+    payload: Bytes,
     ignore_errors: bool,
 ) -> Result<Vec<Value>> {
     Ok(match content_type {
         ct if ct == *JSON_CONTENT_TYPE => transform_ndjson_array_factory(
-            Deserializer::from_str(&payload).into_iter(),
+            Deserializer::from_slice(&payload).into_iter(),
             ignore_errors,
         )?,
         ct if ct == *NDJSON_CONTENT_TYPE => {
             let mut result = Vec::with_capacity(1000);
             for (index, line) in payload.lines().enumerate() {
-                match serde_json::from_str(line) {
-                    Ok(v) => {
-                        result.push(v);
-                    }
-                    Err(_) => {
-                        if !ignore_errors {
-                            warn!(
-                                "invalid json item in array, index: {:?}, value: {:?}",
-                                index, line
-                            );
-                            return InvalidParameterSnafu {
-                                reason: format!("invalid item:{} in array", line),
-                            }
-                            .fail();
+                let line = match line {
+                    Ok(line) if !line.is_empty() => line,
+                    Ok(_) => continue, // Skip empty lines
+                    Err(_) if ignore_errors => continue,
+                    Err(e) => {
+                        warn!(e; "invalid string at index: {}", index);
+                        return InvalidParameterSnafu {
+                            reason: format!("invalid line at index: {}", index),
                         }
+                        .fail();
                     }
+                };
+
+                if let Ok(v) = serde_json::from_str(&line) {
+                    result.push(v);
+                } else if !ignore_errors {
+                    warn!("invalid JSON at index: {}, content: {:?}", index, line);
+                    return InvalidParameterSnafu {
+                        reason: format!("invalid JSON at index: {}", index),
+                    }
+                    .fail();
                 }
             }
             result
         }
         ct if ct == *TEXT_CONTENT_TYPE || ct == *TEXT_UTF8_CONTENT_TYPE => payload
             .lines()
-            .filter(|line| !line.is_empty())
+            .filter_map(|line| line.ok().filter(|line| !line.is_empty()))
             .map(|line| json!({"message": line}))
             .collect(),
         _ => UnsupportedContentTypeSnafu { content_type }.fail()?,
@@ -677,7 +684,8 @@ pub(crate) async fn ingest_logs_inner(
 pub trait LogValidator: Send + Sync {
     /// validate payload by source before processing
     /// Return a `Some` result to indicate validation failure.
-    async fn validate(&self, source: Option<&str>, payload: &str) -> Option<Result<HttpResponse>>;
+    async fn validate(&self, source: Option<&str>, payload: &Bytes)
+        -> Option<Result<HttpResponse>>;
 }
 
 pub type LogValidatorRef = Arc<dyn LogValidator + 'static>;
@@ -731,17 +739,17 @@ mod tests {
         {"a": 1}
         {"b": 2"}
         {"c": 1}
-"#;
+"#
+        .as_bytes();
+        let payload = Bytes::from_static(payload);
+
         let fail_rest =
-            extract_pipeline_value_by_content_type(ContentType::json(), payload.to_string(), true);
+            extract_pipeline_value_by_content_type(ContentType::json(), payload.clone(), true);
         assert!(fail_rest.is_ok());
         assert_eq!(fail_rest.unwrap(), vec![json!({"a": 1})]);
 
-        let fail_only_wrong = extract_pipeline_value_by_content_type(
-            NDJSON_CONTENT_TYPE.clone(),
-            payload.to_string(),
-            true,
-        );
+        let fail_only_wrong =
+            extract_pipeline_value_by_content_type(NDJSON_CONTENT_TYPE.clone(), payload, true);
         assert!(fail_only_wrong.is_ok());
         assert_eq!(
             fail_only_wrong.unwrap(),