vercel.json { "rewrites": [ { "source": "/(.*)", "destination": "/" } ],

"headers": [ { "source": "/api/(.)", "headers": [ { "key": "Access-Control-Allow-Credentials", "value": "true" }, { "key": "Access-Control-Allow-Origin", "value": "" }, { "key": "Access-Control-Allow-Methods", "value": "GET,OPTIONS,PATCH,DELETE,POST,PUT" }, { "key": "Access-Control-Allow-Headers", "value": "Content-Type, Authorization, Accept, X-Requested-With" } ] } ] }

openaiHandler.mjs export default async function handler(req, res) { console.log(req.method, req.url); if (req.method === "OPTIONS") { res.setHeader("Access-Control-Allow-Origin", "http://localhost:5173"); res.setHeader("Access-Control-Allow-Methods", "GET,OPTIONS,PATCH,DELETE,POST,PUT"); res.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization, Accept, X-Requested-With"); res.setHeader("Access-Control-Allow-Credentials", "true"); return res.status(200).end(); }

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if (req.method !== "POST") {
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    return res.status(405).json({ error: "Method not allowed" });
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}

// rest of code }

and access from localhost: const response = await axios.post( "https://development-url-vercel-github.vercel.app/api/openaiHandler", { role: role, jobRequirements: jobRequirements, organization: organization, resumeText: resumeText, }, { headers: { "Authorization": Bearer ${await supabase.auth.getSession().then((res) => res.data?.session?.access_token)}, "Content-Type": "application/json", }, } );