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Flutter: Send JSON body for Http GET request

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2

I need to make a GET request to an API from my Flutter app which requires request body as JSON (raw).

I tested the API with JSON request body in Postman and it seems to be working fine.

Now on my Flutter application I am trying to do the same thing:

_fetchDoctorAvailability() async 
 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 Uri uri = Uri.parse("http://theapiiamcalling:8000");
 uri.replace(queryParameters: params);

 var response = await http.get(uri, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

 print('---- status code: $response.statusCode');
 var jsonData = json.decode(response.body);

 print('---- slot: $jsonData');

However the API gives me an error saying

message: Missing input json., status: false

How do I send a raw (or rather JSON) request body for Http GET request in Flutter?

json dart flutter

share|improve this question

asked Mar 25 at 5:38

codeinprogresscodeinprogress

65221331

add a comment | 

2

I need to make a GET request to an API from my Flutter app which requires request body as JSON (raw).

I tested the API with JSON request body in Postman and it seems to be working fine.

Now on my Flutter application I am trying to do the same thing:

_fetchDoctorAvailability() async 
 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 Uri uri = Uri.parse("http://theapiiamcalling:8000");
 uri.replace(queryParameters: params);

 var response = await http.get(uri, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

 print('---- status code: $response.statusCode');
 var jsonData = json.decode(response.body);

 print('---- slot: $jsonData');

However the API gives me an error saying

message: Missing input json., status: false

How do I send a raw (or rather JSON) request body for Http GET request in Flutter?

json dart flutter

share|improve this question

asked Mar 25 at 5:38

codeinprogresscodeinprogress

65221331

add a comment | 

I need to make a GET request to an API from my Flutter app which requires request body as JSON (raw).

I tested the API with JSON request body in Postman and it seems to be working fine.

Now on my Flutter application I am trying to do the same thing:

_fetchDoctorAvailability() async 
 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 Uri uri = Uri.parse("http://theapiiamcalling:8000");
 uri.replace(queryParameters: params);

 var response = await http.get(uri, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

 print('---- status code: $response.statusCode');
 var jsonData = json.decode(response.body);

 print('---- slot: $jsonData');

However the API gives me an error saying

message: Missing input json., status: false

How do I send a raw (or rather JSON) request body for Http GET request in Flutter?

json dart flutter

share|improve this question

asked Mar 25 at 5:38

codeinprogresscodeinprogress

65221331

_fetchDoctorAvailability() async 
 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 Uri uri = Uri.parse("http://theapiiamcalling:8000");
 uri.replace(queryParameters: params);

 var response = await http.get(uri, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

 print('---- status code: $response.statusCode');
 var jsonData = json.decode(response.body);

 print('---- slot: $jsonData');

json dart flutter

json dart flutter

share|improve this question

asked Mar 25 at 5:38

codeinprogresscodeinprogress

65221331

share|improve this question

asked Mar 25 at 5:38

codeinprogresscodeinprogress

65221331

asked Mar 25 at 5:38

codeinprogresscodeinprogress

65221331

asked Mar 25 at 5:38

codeinprogresscodeinprogress

65221331

1 Answer
1

active

oldest

votes

1

uri.replace... returns a new Uri, so you have to assign it into a new variable or use directly into the get function.

final newURI = uri.replace(queryParameters: params);

var response = await http.get(newURI, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
);

using post:

 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 var response = await http.post("http://theapiiamcalling:8000", 
 body: json.encode(params)
 ,headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

share|improve this answer

edited Mar 25 at 6:05

answered Mar 25 at 5:52

diegoveloperdiegoveloper

18.5k22839

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks, now I no longer get that error message but the response body comes back as empty.
  
  – codeinprogress
  Mar 25 at 6:01
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  maybe you should use post instead of get to send raw data.
  
  – diegoveloper
  Mar 25 at 6:04
  

  
  
  
  

add a comment | 

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1

uri.replace... returns a new Uri, so you have to assign it into a new variable or use directly into the get function.

final newURI = uri.replace(queryParameters: params);

var response = await http.get(newURI, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
);

using post:

 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 var response = await http.post("http://theapiiamcalling:8000", 
 body: json.encode(params)
 ,headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

share|improve this answer

edited Mar 25 at 6:05

answered Mar 25 at 5:52

diegoveloperdiegoveloper

18.5k22839

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks, now I no longer get that error message but the response body comes back as empty.
  
  – codeinprogress
  Mar 25 at 6:01
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  maybe you should use post instead of get to send raw data.
  
  – diegoveloper
  Mar 25 at 6:04
  

  
  
  
  

add a comment | 

1

uri.replace... returns a new Uri, so you have to assign it into a new variable or use directly into the get function.

final newURI = uri.replace(queryParameters: params);

var response = await http.get(newURI, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
);

using post:

 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 var response = await http.post("http://theapiiamcalling:8000", 
 body: json.encode(params)
 ,headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

share|improve this answer

edited Mar 25 at 6:05

answered Mar 25 at 5:52

diegoveloperdiegoveloper

18.5k22839

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks, now I no longer get that error message but the response body comes back as empty.
  
  – codeinprogress
  Mar 25 at 6:01
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  maybe you should use post instead of get to send raw data.
  
  – diegoveloper
  Mar 25 at 6:04
  

  
  
  
  

add a comment | 

uri.replace... returns a new Uri, so you have to assign it into a new variable or use directly into the get function.

final newURI = uri.replace(queryParameters: params);

var response = await http.get(newURI, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
);

using post:

 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 var response = await http.post("http://theapiiamcalling:8000", 
 body: json.encode(params)
 ,headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

share|improve this answer

edited Mar 25 at 6:05

answered Mar 25 at 5:52

diegoveloperdiegoveloper

18.5k22839

final newURI = uri.replace(queryParameters: params);

var response = await http.get(newURI, headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
);

 var params = 
 "doctor_id": "DOC000506",
 "date_range": "25/03/2019-25/03/2019" ,
 "clinic_id":"LAD000404"
 ;

 var response = await http.post("http://theapiiamcalling:8000", 
 body: json.encode(params)
 ,headers: 
 "Authorization": Constants.APPOINTMENT_TEST_AUTHORIZATION_KEY,
 HttpHeaders.contentTypeHeader: "application/json",
 "callMethod" : "DOCTOR_AVAILABILITY"
 );

share|improve this answer

edited Mar 25 at 6:05

answered Mar 25 at 5:52

diegoveloperdiegoveloper

18.5k22839

answered Mar 25 at 5:52

diegoveloperdiegoveloper

18.5k22839

answered Mar 25 at 5:52

diegoveloperdiegoveloper

18.5k22839