未捕获的 SyntaxError：从本地主机获取时 JSON 输入意外结束

Question

When I run the code for the following snippet, it gives me the Uncaught SyntaxError: Unexpected end of JSON input. I'm new to coding so I would really love some help. Thank you.

  fetch('http://localhost:3000/add-user', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({
        name: 'User 1'
      })
    }).then(res => {
      return res.json();
    })
    .then(data => alert(data))
    .catch(error => alert(error))

I expected it to show the parsed output but it only gives me the error.

Answer 1

try this one

 try {
await fetch('http://localhost:3000/add-user', {
  method: 'POST',
  headers: new Headers({
   'Content-Type': 'multipart/form-data',
  }),
 body: {
    name: 'User 1'
  }
})
  .then(response => response.json())
  .then(result => {
   
  });

} catch (error) {}