init

app/api/upload/route.ts

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+import { NextRequest, NextResponse } from 'next/server'
+import { writeFile, mkdir } from 'fs/promises'
+import { join } from 'path'
+import { existsSync } from 'fs'
+
+export async function POST(request: NextRequest) {
+  try {
+    const formData = await request.formData()
+    const file = formData.get('file') as File
+
+    if (!file) {
+      return NextResponse.json(
+        { error: 'No file uploaded' },
+        { status: 400 }
+      )
+    }
+
+    // Validate file type
+    const validTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/webp']
+    if (!validTypes.includes(file.type)) {
+      return NextResponse.json(
+        { error: 'Invalid file type. Only JPEG, PNG, and WebP are allowed.' },
+        { status: 400 }
+      )
+    }
+
+    // Validate file size (max 5MB)
+    const maxSize = 5 * 1024 * 1024 // 5MB
+    if (file.size > maxSize) {
+      return NextResponse.json(
+        { error: 'File size too large. Maximum size is 5MB.' },
+        { status: 400 }
+      )
+    }
+
+    const bytes = await file.arrayBuffer()
+    const buffer = Buffer.from(bytes)
+
+    // Create uploads directory if it doesn't exist
+    const uploadsDir = join(process.cwd(), 'public', 'uploads')
+    if (!existsSync(uploadsDir)) {
+      await mkdir(uploadsDir, { recursive: true })
+    }
+
+    // Generate unique filename
+    const timestamp = Date.now()
+    const originalName = file.name.replace(/[^a-zA-Z0-9.-]/g, '_')
+    const filename = `${timestamp}-${originalName}`
+    const filepath = join(uploadsDir, filename)
+
+    // Write file
+    await writeFile(filepath, buffer)
+
+    // Return the public URL
+    const fileUrl = `/uploads/${filename}`
+
+    return NextResponse.json({ url: fileUrl }, { status: 200 })
+  } catch (error) {
+    console.error('Error uploading file:', error)
+    return NextResponse.json(
+      { error: 'Failed to upload file' },
+      { status: 500 }
+    )
+  }
+}
+