constants

src/app/api/flux/route.ts

@@ -10,6 +10,10 @@ fal.config({
   credentials: process.env.FAL_AI_KEY
 })
 
+// Consistent image size for all generations
+const IMAGE_WIDTH: number = 1024
+const IMAGE_HEIGHT: number = 1024
+
 export async function POST(req: NextRequest): Promise<NextResponse> {
   try {
     const { prompt, modelId } = await req.json()
@@ -27,6 +31,15 @@ export async function POST(req: NextRequest): Promise<NextResponse> {
     const result = await fal.subscribe(modelId, {
       input: {
         prompt: prompt,
+        image_size: {
+          width: IMAGE_WIDTH,
+          height: IMAGE_HEIGHT
+        },
+        // Additional parameters for consistent output
+        num_images: 1,
+        scheduler: "DDIM",
+        num_inference_steps: 50,
+        guidance_scale: 7.5
       },
       logs: true,
       onQueueUpdate: (update) => {
@@ -38,11 +51,15 @@ export async function POST(req: NextRequest): Promise<NextResponse> {
 
     console.log('Flux generation result:', result)
 
-    if (!result.data?.images?.[0]?.url) {
+    // Extract the image URL from the response
+    const imageUrl = result.data?.images?.[0]?.url
+
+    if (!imageUrl) {
+      console.error('No image URL in response:', result)
       throw new Error('No image URL in response')
     }
 
-    return NextResponse.json({ imageUrl: result.data.images[0].url })
+    return NextResponse.json({ imageUrl })
   } catch (error) {
     console.error('Flux generation error:', error)
     return NextResponse.json(