invalid json response body error with Express node-fetch using formData
The body is consumed after calling .json(), not sure you can access it afterwards. A simple workaround: get the raw body and parse it yourself:
async function safeParseJSON(response) { const body = await response.text(); try { return JSON.parse(body); } catch (err) { console.error("Error:", err); console.error("Response body:", body); // throw err; return ReE(response, err.message, 500) }}const json = await = fetch(...).then(safeParseJSON)
Try res => console.log(res) in your first .then() block to see what the response is. Usually that error "Unexpected token < in JSON..." means that the response returned some html and the "<" in the error is an opening tag.