如何在 dart 或 flutter 中将请求参数作为 formdata 传递

Question

I have tried many formats to pass the request parameter in the flutter project but I'm getting API status code 415 and Unhandled Exception: FormatException: Unexpected end of input (at character 1) . I have added the postman image for the understanding of the form data.

Answer 1

For Flutter HTTP library it goes like this,

var headers = {
  'Content-Type': 'application/x-www-form-urlencoded'
};
var request = http.Request('POST', Uri.parse(''));
request.bodyFields = {
  'firstName': 'Keval',
  'lastName': 'ebiz',
  'email': 'al@gmail.com',
  'phone': '1234'
};
request.headers.addAll(headers);

http.StreamedResponse response = await request.send();

if (response.statusCode == 200) {
  print(await response.stream.bytesToString());
}
else {
  print(response.reasonPhrase);
}