Fail to enable CORS for API Gateway functions

Question

I get

While attempting to enable CORS on API Gateway, why is that and how do I resolve this? These functions are deployed using AWS SAM. But I notice if I crea

Answer 1

I had a CORS problem with API Gateway + Lambda and the above answers did not help me but I figured out I needed to add some headers information to my response code in my API.

I needed to add the res.statusCodeand the two headers.

// GET
// get all myModel
app.get('/models/', (req, res) => {
  const query = 'SELECT * FROM MyTable'
  pool.query(query, (err, results, fields) => {
    //...

    const models = [...results]
    const response = {
      data: models,
      message: 'All models successfully retrieved.',
    }
    //****** needed to add the next 3 lines
    res.statusCode = 200;
    res.setHeader('content-type', 'application/json');
    res.setHeader('Access-Control-Allow-Origin', '*');
    res.send(response)
  })
})