how to pass access token in a http request with flutter? - flutter

Question

i would like to create a campaign using marketing API, here is the Curl code, i want to transform into an http post request:
AND MY HTTP REQUEST with the model class
Future<Campaign> createCampaign(String name,String objective,String
status) async {
final http.Response response = await http.post(
'https://graph.facebook.com/v7.0/act_<AD_ACCOUNT_ID>/campaigns',
headers: {HttpHeaders.authorizationHeader: "Basic },
body: jsonEncode(<String, String>{
'name': name,
'objective': objective,
'status': status
}),
);
if (response.statusCode == 201) {
return Campaign.fromJson(json.decode(response.body));
} else {
throw Exception('Failed to create Campaign.');
}
}
class Campaign {
final String name;
final String objective;
final String status;
final Map <String,dynamic> special_ad_categories;
final Map<String,dynamic> access_token;
Campaign({this.name,this.objective,this.status,this.special_ad_categories,
this.access_token});
factory Campaign.fromJson(Map<String, dynamic> json) {
return Campaign(
name: json['name'],
objective: json['objective'],
status: json['status'],
special_ad_categories: json['special_ad_categories'],
access_token: json['access_token'],
);
}
}

Answer 1

Try using dio package. It has API to send form data.
import 'dart:convert';
import 'dart:io';
import 'package:dio/dio.dart' as dio;
const AD_ACCOUNT_ID = '...';
const ACCESS_TOKEN = '...';
Future<Campaign> createCampaign(String name, String objective, String status, String categories) async {
try {
final formData = dio.FormData.fromMap({
'name': name,
'objective': objective,
'status': status,
'special_ad_categories': categories,
'access_token': ACCESS_TOKEN
});
final response = await dio.Dio().post(
'https://graph.facebook.com/v7.0/act_$AD_ACCOUNT_ID/campaigns',
data: formData,
);
if (response.statusCode == HttpStatus.created) {
return Campaign.fromJson(jsonDecode(response.data));
} else {
throw Exception('Failed to create Campaign.');
}
} on dio.DioError {
throw Exception('Failed to create Campaign.');
}
}
// example of calling: createCampaign('test', 'LINK_CLICKS', 'PAUSED', 'NONE');
Don't forget to replace AD_ACCOUNT_ID and ACCESS_TOKEN.

Answer 2

All parameters are in body. Try like this:
Future<http.Response> fetchAlbum() {
return http.post(
'https://your-url',
body: {
'name': name,
'objective': objective,
'status': status,
'special_ad_categories': [],
'access_token': accessToken,
},
);
}

Answer 3

I think you missed the account id in
'https://graph.facebook.com/v7.0/act_<AD_ACCOUNT_ID>/campaigns'