React Proxy error: Could not proxy request /api/ from localhost:3000 to http://localhost:8000 (ECONNREFUSED)

Question

I have a React frontend that uses jwt to authenticate with the Django backend. The backend works and is connecting just fine using django views, but when I try to proxy a r

Answer 1

The correct answer will be to use manual proxy with

1. target = docker address django:4000
2. correct HOST header localhost:8000

because if Django uses reverse function which returns absolute url

reverse('preview-mail', args=[mail.pk],request=request)

you need to have correct HOST header for it, or you may get the result URL like https://django:4000/your-url`

const proxy = require('http-proxy-middleware');

module.exports = function(app) {
  app.use(
    proxy('/api', {
      target: 'http://django:4000',
      changeOrigin: true,
      secure: false,
      pathRewrite: {
        '^/api': ''
      },
      onProxyReq: function (proxyReq, req, res) {
          proxyReq.setHeader("host", 'localhost:8000')
      }
    })
  )
}