OpenAPITools · Rezrazi · Jan 11, 2026 · Jan 11, 2026 · Jan 11, 2026 · Jan 11, 2026
diff --git a/modules/openapi-generator/src/main/resources/typescript/http/http.mustache b/modules/openapi-generator/src/main/resources/typescript/http/http.mustache
@@ -216,6 +216,11 @@ export class RequestContext {
 export interface ResponseBody {
     text(): Promise<string>;
     binary(): Promise<{{{fileContentDataType}}}>;
+    {{#platforms}}
+    {{#node}}
+    stream(): ReadableStream<Uint8Array> | null;
+    {{/node}}
+    {{/platforms}}
 }
 
 /**
@@ -253,6 +258,14 @@ export class SelfDecodingBody implements ResponseBody {
         {{/deno}}
         {{/platforms}}
     }
+
+    {{#platforms}}
+    {{#node}}
+    stream(): ReadableStream<Uint8Array> | null {
+        return null;
+    }
+    {{/node}}
+    {{/platforms}}
 }
 
 export class ResponseContext {

diff --git a/modules/openapi-generator/src/main/resources/typescript/http/isomorphic-fetch.mustache b/modules/openapi-generator/src/main/resources/typescript/http/isomorphic-fetch.mustache
@@ -38,7 +38,8 @@ export class IsomorphicFetchHttpLibrary implements HttpLibrary {
             {{#node}}
             const body = {
               text: () => resp.text(),
-              binary: () => resp.buffer()
+              binary: () => resp.buffer(),
+              stream: () => resp.body
             };
             {{/node}}
             {{^node}}

diff --git a/samples/client/echo_api/typescript/build/http/http.ts b/samples/client/echo_api/typescript/build/http/http.ts
diff --git a/samples/client/echo_api/typescript/build/http/isomorphic-fetch.ts b/samples/client/echo_api/typescript/build/http/isomorphic-fetch.ts
diff --git a/samples/client/others/typescript/builds/array-of-lists/http/http.ts b/samples/client/others/typescript/builds/array-of-lists/http/http.ts
diff --git a/samples/client/others/typescript/builds/enum-single-value/http/http.ts b/samples/client/others/typescript/builds/enum-single-value/http/http.ts
diff --git a/samples/client/others/typescript/builds/null-types-simple/http/http.ts b/samples/client/others/typescript/builds/null-types-simple/http/http.ts
diff --git a/samples/client/others/typescript/builds/with-unique-items/http/http.ts b/samples/client/others/typescript/builds/with-unique-items/http/http.ts
diff --git a/samples/client/others/typescript/encode-decode/build/http/http.ts b/samples/client/others/typescript/encode-decode/build/http/http.ts
diff --git a/samples/client/others/typescript/encode-decode/build/http/isomorphic-fetch.ts b/samples/client/others/typescript/encode-decode/build/http/isomorphic-fetch.ts
diff --git a/samples/client/others/typescript/encode-decode/test/test/server.ts b/samples/client/others/typescript/encode-decode/test/test/server.ts
@@ -26,6 +26,7 @@ class TestServerStub implements PromiseHttpLibrary {
             const body: ResponseBody = {
                 binary: async () => { throw new Error('not implemented') },
                 text: async () => JSON.stringify(value),
+                stream: () => null,
             };
             const headers = { 'content-type': 'application/json' };
             return new ResponseContext(200, headers, body);
@@ -35,6 +36,7 @@ class TestServerStub implements PromiseHttpLibrary {
             const body: ResponseBody = {
                 binary: async () => { throw new Error('not implemented') },
                 text: async () => "",
+                stream: () => null,
             };
             return new ResponseContext(200, {}, body);
         } else {

diff --git a/samples/openapi3/client/petstore/typescript/builds/browser/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/browser/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/composed-schemas/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/composed-schemas/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/default/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/default/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/default/http/isomorphic-fetch.ts b/samples/openapi3/client/petstore/typescript/builds/default/http/isomorphic-fetch.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/deno/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/deno/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/deno_object_params/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/deno_object_params/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/explode-query/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/explode-query/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/explode-query/http/isomorphic-fetch.ts b/samples/openapi3/client/petstore/typescript/builds/explode-query/http/isomorphic-fetch.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/inversify/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/inversify/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/inversify/http/isomorphic-fetch.ts b/samples/openapi3/client/petstore/typescript/builds/inversify/http/isomorphic-fetch.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/jquery/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/jquery/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/nullable-enum/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/nullable-enum/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/object_params/http/http.ts b/samples/openapi3/client/petstore/typescript/builds/object_params/http/http.ts
diff --git a/samples/openapi3/client/petstore/typescript/builds/object_params/http/isomorphic-fetch.ts b/samples/openapi3/client/petstore/typescript/builds/object_params/http/isomorphic-fetch.ts