Dynamic json body variables

GUI/src/services/service-builder.ts

@@ -826,13 +826,27 @@ function handleAssignStep(
 
   finishedFlow.set(parentStepName, {
     assign: parentNode.data.assignElements?.reduce((acc: Record<string, any>, e: Assign) => {
-      acc[e.key] = e.value;
+      acc[e.key] = normalizeAssignValue(e.value);
       return acc;
     }, {}),
     next: childNode ? toSnakeCase(childNode.data.label ?? 'format_messages') : 'format_messages',
   });
 }
 
+/**
+ * Ruuter injects JSON.parse() around *_res variables when they appear inside function calls
+ * (e.g. String(testAPI_res.response.body[...])), causing failures because _res variables
+ * are already parsed objects. Strip String() wrappers from API response variable expressions
+ * so Ruuter handles them via direct property access (which works correctly).
+ */
+function normalizeAssignValue(value: string): string {
+  const match = /^\$\{String\(([\s\S]*)\)\}$/.exec(value);
+  if (match && /\b\w+_res\b/.test(match[1])) {
+    return '${' + match[1] + '}';
+  }
+  return value;
+}
+
 function handleEndpointStep(
   parentNode: Node<NodeDataProps>,
   finishedFlow: Map<any, any>,
@@ -866,7 +880,8 @@ function handleEndpointStep(
 
   if (isRawBodySelected) {
     try {
-      const rawJson = JSON.parse(rawBody?.value ?? '');
+      const rawJsonStr = (rawBody?.value ?? '').replace(/(?<!")(\$\{[^}]+\})(?!")/g, '"$1"');
+      const rawJson = JSON.parse(rawJsonStr);
       stepConfig.args.body = rawJson;
     } catch (e: any) {
       console.log(`Unable to save JSON to Yaml. ${e.message}`);

GUI/src/services/service-tester.ts

@@ -29,7 +29,11 @@ export const runServiceTest = async (input: string, serviceName?: string) => {
 
   const { state, name, serviceStore } = serviceData;
 
-  const invalidNodes = getInvalidNodes(serviceStore.nodes);
+  // Clear previous test states first so stale testingPassed:false doesn't block re-runs
+  clearPreviousTestStates(serviceStore);
+
+  // Re-read fresh nodes from store after clearing (serviceStore.nodes is a stale snapshot)
+  const invalidNodes = getInvalidNodes(useServiceStore.getState().nodes);
   if (invalidNodes.length > 0) {
     reportInvalidNodes(invalidNodes);
     return true;
@@ -38,8 +42,6 @@ export const runServiceTest = async (input: string, serviceName?: string) => {
   const nameToUse = serviceName ?? name;
   const stateToUse = state == ServiceState.Ready ? ServiceState.Draft : state;
 
-  clearPreviousTestStates(serviceStore);
-
   try {
     await executeServiceTest(headerValue, stateToUse, nameToUse, input.split(','));
 

GUI/src/store/new-services.store.ts

@@ -456,8 +456,8 @@
       });
 
       const initialHistoryState = {
         nodes: JSON.parse(JSON.stringify(nodes)),
         edges: JSON.parse(JSON.stringify(edges)),
       };
 
       set({
@@ -858,12 +858,12 @@
 
     const currentState = stateOverride
       ? {
           nodes: JSON.parse(JSON.stringify(stateOverride.nodes)),
           edges: JSON.parse(JSON.stringify(stateOverride.edges)),
         }
       : {
           nodes: JSON.parse(JSON.stringify(nodes)),
           edges: JSON.parse(JSON.stringify(edges)),
         };
 
     const lastState = history[historyIndex];
@@ -891,7 +891,7 @@
     const { history, historyIndex } = get();
     if (historyIndex > 0) {
       const previousState = history[historyIndex - 1];
       let nodes = JSON.parse(JSON.stringify(previousState.nodes));
 
       nodes = nodes.map((node: any) => {
         if (node.type !== 'custom') return node;
@@ -909,7 +909,7 @@
 
       set({
         nodes: nodes,
         edges: JSON.parse(JSON.stringify(previousState.edges)),
         historyIndex: historyIndex - 1,
         hasUnsavedChanges: true,
       });
@@ -920,7 +920,7 @@
     const { history, historyIndex } = get();
     if (historyIndex < history.length - 1) {
       const nextState = history[historyIndex + 1];
       let nodes = JSON.parse(JSON.stringify(nextState.nodes));
 
       nodes = nodes.map((node: any) => {
         if (node.type !== 'custom') return node;
@@ -938,7 +938,7 @@
 
       set({
         nodes: nodes,
         edges: JSON.parse(JSON.stringify(nextState.edges)),
         historyIndex: historyIndex + 1,
         hasUnsavedChanges: true,
       });
@@ -955,7 +955,8 @@
 
   if (isRawBodySelected) {
     try {
-      const rawJson = JSON.parse(rawBody?.value ?? '');
+      const rawJsonStr = (rawBody?.value ?? '').replace(/(?<!")(\$\{[^}]+\})(?!")/g, '"$1"');
+      const rawJson = JSON.parse(rawJsonStr);
       body = rawJson;
     } catch (e: any) {
       body = extractMapValues(endpoint.body);