How to send boolean value or int value in a http request body?

user_12053772 0
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How to send a boolean value or an integer in http request body in dart? The documentation says that I can only send string, list or a Map. How to make it work for boolean or integer in Dart?

dart flutter http
2 Answers

Try this approach which I use in my projects 

  void apiPost(){

    var body = jsonEncode(
        {
          "string":"test",
          "bool":true,
          "int":1
        });

    http.post("url here",body: body,headers: {"Content-Type": "application/json"}).then((response) {
      Map map = json.decode(response.body);
    });
  }
user_108291010

As you saw in the documentation, you can only send those three things: a byte array, a string or a map of string to string. In fact, in the end, you are just sending a byte array. The other options get converted to bytes before sending.

A string is converted to bytes by transforming it into bytes using utf-8 (or some other encoding specified by the content-type header).

A map of string to string is encoded to first as x-www-form-urlencoded and then to bytes. That encoding can, of course, only encode strings.

So the answer to your question really depends on where/how the server expects to receive the fields. If it's expecting them in a form, then it's your responsibility to convert, say, a boolean into whatever string the server expects. Maybe that's 'true'/'false' or '1'/'0' or something else. Make your map like this:

int someInt;
bool someBool;
var formData = <String, String>{
  'an_int_value' : someInt.toString(),
  'a_bool_value' : someBool.toString(), // assuming 'true'/'false' is OK
};

Also consider the possibility that your server requires a completely different encoding, like JSON. Then you would convert your map to JSON, then pass that as a string, setting the content-type appropriately.

user_95977060
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