Future<String> loginUser(User user) async {
var body = jsonEncode({
'strlogin': user.email,
});
Response response = await post(SeguriSignAPIURL.loginUser,
headers: headers,
body: body);
if (response.statusCode == 200) {
var decode = jsonDecode(response.body);
return decode['token'];
} else {
print(response.reasonPhrase);
return '';
}
Hey! When I make this Post call on Postman I get a result, however when I run this code on flutter I get a 400 error. My headers:
final headers = {
'Content-Type': 'application/json; charset=UTF-8',
"Accept": "application/json",
};
Postman:
In Postman you do the request using form-data, but in your Flutter code, you pass json-encoded body.
You either need to use form-data in Flutter or update your server code to accept json content type.
Related
This is my code. The goal is to get the link with file id.
// body parameter
Map<String, dynamic> body = {'file_id': 123};
String jsonBody = json.encode(body);
// response request
var download_response = await http.post(
Uri.parse('https://api.opensubtitles.com/api/v1/download'),
headers: {
'Content-Type': 'application/json',
'Api-Key': 'yCTZwGASncUthpMkMkbQDjcUdrrM2r8v'
},
body: jsonBody,
);
// print
debugPrint(download_response.body.toString());
I think I should be getting a JSON data response which I'm getting properly with postman but in flutter I'm getting empty response.
Things I tried:
encoding the body with jsonencode
correct syntax formatting
writing the body in plain json string
var headers = {
'Api-Key': 'yCTZwGASncUthpMkMkbQDjcUdrrM2r8v',
'Content-Type': 'application/json'
};
var request = http.MultipartRequest('POST', Uri.parse('https://api.opensubtitles.com/api/v1/download'));
request.fields.addAll({
'file_id': '123'
});
request.headers.addAll(headers);
http.StreamedResponse response = await request.send();
if (response.statusCode == 200) {
print(await response.stream.bytesToString());
}
else {
print(response.reasonPhrase);
}
I wanted to send raw data in flutter http and the data doesn't look like JSON
Here's how I done that in Postman
and tried this in flutter using http,
Response res = await post(
Uri.parse(baseUrl + endPoint),
headers: {'Client-ID': clientId, 'Authorization': 'Bearer $accessToken'},
body: jsonEncode('fields *'),
);
and got this in console,
Error: XMLHttpRequest error.
Add it as this
var headers = {
'Accept': 'application/json',
'Content-Type': 'text/plain',
};
var request = http.Request('POST', Uri.parse('Your url'));
request.body = '''fields *''';
request.headers.addAll(headers);
http.StreamedResponse response = await request.send();
if (response.statusCode == 200) {
print(await response.stream.bytesToString());
}
else {
print(response.reasonPhrase);
}
Or you can easily see it being implemented in Postman's code request to the right just select the code icon and choose http-Dart
I am integrating Stripe in my flutter app, want to create payment intent using http POST request having mention here. But I am constantly receiving this error. Tried many thing!
{
"error": {
"code": "parameter_unknown",
"doc_url": "https://stripe.com/docs/error-codes/parameter-unknown",
"message": "Received unknown parameter: {\"amount\":2,\"currency\":\"usd\"}",
"param": "{\"amount\":2,\"currency\":\"usd\"}",
"type": "invalid_request_error"
}
}
My api function is this:
Future<Map<String, dynamic>> createPaymentIntent(int amount) async {
try {
var url = "https://api.stripe.com/v1/payment_intents";
var body = json.encode({
"amount": amount,
"currency": 'usd'
});
var headers = {
'Content-type': 'application/x-www-form-urlencoded',
'Accept': 'application/json',
'authorization': 'Bearer '+stripeSecret
};
await http.post(url, body: json.encode(body), headers: headers, encoding: Encoding.getByName("utf-8")).then((response) {
if(response.statusCode == 200){
print(response.body);
return json.decode(response.body);
}
else{
return response.reasonPhrase;
}
});
} catch (e) {
return e.message;
}
}
Note: 'Content-type': 'application/x-www-form-urlencoded' is necessary for this.
You are sending a JSON encoded body to the Stripe API, but the Stripe API expects a form-encoded request body:
Our API has predictable resource-oriented URLs, accepts form-encoded request bodies, returns JSON-encoded responses, and uses standard HTTP response codes, authentication, and verbs.
Future<EventObject> addStudentToSubject(String studentCode, String subjectid) async {
try {
final encoding = APIConstants.OCTET_STREAM_ENCODING;
final response = await http.post('${APIConstants.API_BASE_LIVE_URL}/controller_educator/add_student_to_subject.php',
headers: {
'Accept': 'application/json',
},
body: {
'stud_code': studentCode,
'subj_id': subjectid
},
encoding: Encoding.getByName(encoding)
);
print("YAWA" + response.body);
} catch (Exception) {
return EventObject();
}
}
Is there something wrong with my code why i theres no response message??
Logcat just says "I/flutter ( 5013): YAWA"
Don't know what i'm missing.
I do not believe your API does not work in Postman. Can you indicate what status code did you get in Postman?
The problem in your code is your not checking the status code response of your API. The POST request you have called has probably had an empty body. Some POST request only returns the status code.
You should always check the status code of the API. If it returns 200 means your API has processed your request successfully.
final encoding = APIConstants.OCTET_STREAM_ENCODING;
final response = await http.post('${APIConstants.API_BASE_LIVE_URL}/controller_educator/add_student_to_subject.php',
headers: {
'Accept': 'application/json',
},
body: {
'stud_code': studentCode,
'subj_id': subjectid
},
encoding: Encoding.getByName(encoding)
);
print(${response.statusCode});
if (response.statusCode == 200) {
String data = response.body;
print(data);
} else {
print(response.statusCode);
}
Hi when I make an API post request via Postman getting the correct status code as 200 but make the same api call with flutter/http package (v0.12.0+4) or DIO (v3.0.9) package I'm getting status code as 302, but the post was successful and the data was saved on the DB. how can I get the status 200 for this or is there a better way to handle redirect in post
Found these git hub issues, but no answer on how to fix this
https://github.com/dart-lang/http/issues/157
https://github.com/dart-lang/sdk/issues/38413
Code making API post
...........
final encoding = Encoding.getByName('utf-8');
final headers = {
HttpHeaders.contentTypeHeader: 'application/json; charset=UTF-8',
HttpHeaders.acceptHeader: 'application/json',
};
//String jsonBody = jsonEncode(feedRequest.toJsonData());
String jsonBody = feedRequest.toJsonData();
print('response.SubmitFeedApiRequest>:' + feedRequest.toJsonData());
print('jsonBody:>' + jsonBody);
String url ='https://myapp';
final response = await http.post(url,
headers: headers, body: jsonBody, encoding: encoding);
print('response.statusCode:' + response.statusCode.toString());
if (response.statusCode == 200) {
print('response.data:' + response.body);
} else {
print('send failed');
}
...............
Postman Screenshot
===UPDATED WORKING CODE AS PER #midhun-mp comment
final response = await http.post(url,
headers: headers, body: jsonBody, encoding: encoding);
print('response.statusCode:' + response.statusCode.toString());
if (response.statusCode == 302) {
//print('response.headers:' + response.headers.toString());
if (response.headers.containsKey("location")) {
final getResponse = await http.get(response.headers["location"]);
print('getResponse.statusCode:' + getResponse.statusCode.toString());
return SubmitFeedApiResponse(success: getResponse.statusCode == 200);
}
} else {
if (response.statusCode == 200) {
// print('response.data:' + response.body);
return SubmitFeedApiResponse.fromJson(json.decode(response.body));
}
return SubmitFeedApiResponse(success: false);
}
}
Just add additional header,
header : "Accept" : "application/json"
The 302 is not an error, it's a redirection status code. The http package won't support redirection for POST request.
So you have to manually handle the redirection. In your code you have to add a condition for status code 302 as well. When the status code is 302, look for the redirection url in the response header and do a http GET on that url.