fix(jsm): handle 204 No Content on action endpoints and reject array answers

Author: waleedlatif1

apps/sim/app/api/tools/jsm/forms/externalise/route.ts

@@ -83,7 +83,8 @@ export async function POST(request: NextRequest) {
       )
     }
 
-    const data = await response.json()
+    const bodyText = await response.text()
+    const data = bodyText ? JSON.parse(bodyText) : {}
 
     return NextResponse.json({
       success: true,

apps/sim/app/api/tools/jsm/forms/internalise/route.ts

@@ -83,7 +83,8 @@ export async function POST(request: NextRequest) {
       )
     }
 
-    const data = await response.json()
+    const bodyText = await response.text()
+    const data = bodyText ? JSON.parse(bodyText) : {}
 
     return NextResponse.json({
       success: true,

apps/sim/app/api/tools/jsm/forms/reopen/route.ts

@@ -83,7 +83,8 @@ export async function POST(request: NextRequest) {
       )
     }
 
-    const data = await response.json()
+    const bodyText = await response.text()
+    const data = bodyText ? JSON.parse(bodyText) : {}
 
     return NextResponse.json({
       success: true,

apps/sim/app/api/tools/jsm/forms/save/route.ts

@@ -39,7 +39,7 @@ export async function POST(request: NextRequest) {
       return NextResponse.json({ error: 'Form ID is required' }, { status: 400 })
     }
 
-    if (!answers || typeof answers !== 'object') {
+    if (!answers || typeof answers !== 'object' || Array.isArray(answers)) {
       logger.error('Missing or invalid answers in request')
       return NextResponse.json({ error: 'Answers object is required' }, { status: 400 })
     }

apps/sim/app/api/tools/jsm/forms/submit/route.ts

@@ -83,7 +83,8 @@ export async function POST(request: NextRequest) {
       )
     }
 
-    const data = await response.json()
+    const bodyText = await response.text()
+    const data = bodyText ? JSON.parse(bodyText) : {}
 
     return NextResponse.json({
       success: true,