fix(typescript): avoid parsing empty messageTerminators in JSON strea…

…m case. (#5471)

* fix: avoid parsing empty messageTerminators in JSON stream case.

* add changelog.

* Update snapshots.

generators/typescript/sdk/CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.44.5] - 2024-12-23
+
+- Fix: Fix a bug where we attempt to parse an empty terminator when receiving streaming JSON responses.
+
 ## [0.44.4] - 2024-12-20
 
 - Feat: Use specified defaults for pagination offset parameters during SDK generation.

generators/typescript/sdk/VERSION

@@ -1 +1 @@
-0.44.4
+0.44.5

generators/typescript/utils/core-utilities/fetcher/src/stream/Stream.ts

@@ -68,10 +68,10 @@ export class Stream<T> implements AsyncIterable<T> {
             while ((terminatorIndex = buf.indexOf(this.messageTerminator)) >= 0) {
                 // Extract the line from the buffer
                 let line = buf.slice(0, terminatorIndex + 1);
-                buf = buf.slice(terminatorIndex + 1);
+                buf = buf.slice(terminatorIndex + this.messageTerminator.length);
 
                 // Skip empty lines
-                if (line.length === 0) {
+                if (!line.trim()) {
                     continue;
                 }
 
@@ -112,7 +112,7 @@ export class Stream<T> implements AsyncIterable<T> {
             decoded += decoder.decode(chunk);
         }
         // Buffer is present in Node.js environment
-        else if (RUNTIME.type === "node" && typeof chunk != "undefined") {
+        else if (RUNTIME.type === "node" && typeof chunk !== "undefined") {
             decoded += Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk);
         }
         return decoded;