cors-proxy.ts

import express from 'express'
import  {createProxyMiddleware}  from 'http-proxy-middleware';

// Configuration
const REPLICATE_TOKEN = process.env.REPLICATE_API_TOKEN;

const appendAuthHeaders = (proxyReq) => {
    proxyReq.setHeader('Authorization', `Token ${REPLICATE_TOKEN}`)
}

const onProxyRes = (proxyRes) => {
    proxyRes.headers['Access-Control-Allow-Origin'] = '*';
    proxyRes.headers['Access-Control-Allow-Headers'] = '*';
    delete proxyRes.headers['content-type'];
}

const app = express();
app.use(
    '/api/',
    createProxyMiddleware({
        router: (req) => req.originalUrl.replace(/.*https?:\/\//, 'https://'),
        changeOrigin: true,
        pathRewrite: {'.*' : ''},
        onProxyReq: appendAuthHeaders,
        onProxyRes: onProxyRes
    })
);
app.listen(3000, () => {
    console.log('Proxy Started')
    if (process.send) {
        process.send("ready");
    }
});