Send Json Request By POST method [closed] - ios

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I am very new in IOS;
I have to post the following JSON to the server at the given link after which I will get a response.
{"req" : {"apikey" : "apikey","service" : "getcat","id" : "MOMTest00011","ptransid" : "","params" : [ {"k" : "mboxid","v" :"f7"}, {"k" : "version","v" :"0"} ]}}
Here is my link http:abcd/api
Content Type - application/json
What will be my function?How will I proceed.

Answer 1

Here's how one would go about setting up a NSURLRequest for POST with JSON data.
NSDictionary *dicJSON; //Represents your JSON in dictionary format.
NSError *error;
NSData *data = [NSJSONSerialization dataWithJSONObject:dicJSON options:0 error:&error];
if (error)
{
//Data was not encoded successfully.
NSLog(#"%#", [error localizedDescription]);
}
else
{
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:#"your url here"]];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
NSString *postLength=[NSString stringWithFormat:#"%d", [data length]];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:data];
//Send this request using a NSURLConnection method here.
}

Answer 2

Json postMethod(singleton and header)
header
//http://smartproduct.n-school.com/
#define k_HOSPLIST #"http://"
#define k_HOSPDetails #"http://"
#endif /* Header_h */
.h file
typedef void(^completionBlock)(NSDictionary *resultDictionary,NSError
*error);
#interface .hfile : NSObject
+ (void)sendGetMethod:(NSString *)url key:(NSString *)key
withCompletionHandler:(completionBlock)handler;
+ (void)downloadDataFromServer:(NSString *)baseURL bodyData:
(NSDictionary *)body method:(NSString *)methodName postString:
(NSString*)string withCompletionHandler:(completionBlock)handler;
.m file
+ (void)sendGetMethod:(NSString *)url key:(NSString *)key
withCompletionHandler:(completionBlock)handler {
NSLog(#"url %#",url);
NSLog(#"-------> key %#",key);
NSString* encodedUrl = [url
stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL
URLWithString:encodedUrl]];
NSURLSessionTask *getMethodtask = [[NSURLSession sharedSession]
dataTaskWithRequest:request completionHandler:^(NSData * _Nullable
data,
NSURLResponse * _Nullable response, NSError * _Nullable error) {
dispatch_async(dispatch_get_main_queue(), ^{
NSLog(#"sendGetMethod - sendAsynchronousRequest - Completion
Block");
if (error)
{
//[k_AppDelegate
showAlertwithTitle:LocalizedString(#"Sorry!")
message:error.localizedDescription
buttonTitle1:LocalizedString(#"OK")
buttonTitle2:#""];
}
else if (data == nil)
{
// [k_AppDelegate showAlertwithTitle:LocalizedString(#"Error!")
message:LocalizedString(#"The specified server could not be
found.")
buttonTitle1:LocalizedString(#"OK") buttonTitle2:#""];
}
else
{
NSDictionary *encodeDictionary = [NSJSONSerialization
JSONObjectWithData:data options:NSJSONReadingMutableLeaves
error:nil];
if (![encodeDictionary isEqual:[NSNull null]] &&
encodeDictionary != nil)
{
if(handler)
{
handler(encodeDictionary, nil);
}
else if([[encodeDictionary objectForKey:#"status"]
{
//[k_AppDelegate
showAlertwithTitle:LocalizedString(#"AlertTitle") message:
[encodeDictionary objectForKey:#"message"]
buttonTitle1:LocalizedString(#"OK") buttonTitle2:#""];
}
}
else
{
//[k_AppDelegate
showAlertwithTitle:LocalizedString(#"Error!")
message:LocalizedString(#"The specified server could not be found.")
buttonTitle1:LocalizedString(#"OK") buttonTitle2:#""];
}
}
});
}];
[getMethodtask resume];
}
+ (void)downloadDataFromServer:(NSString *)baseURL bodyData:
(NSDictionary *)body method:(NSString *)methodName postString:
(NSString*)string withCompletionHandler:(completionBlock)handler;
{
NSString *getFullServer = [NSString stringWithFormat:#"%#",baseURL];
//Pass the parameters and Set the URL
NSURL *urlString = [NSURL URLWithString:getFullServer];
NSString *post = [NSString stringWithFormat:#"%#",string];
// Convert NSString to NSData format
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding
allowLossyConversion:NO];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned
long)[postData length]];
// Create the URL Request and set the neccesary parameters
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:urlString];
[request setHTTPMethod:methodName];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded"
forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSURLSessionTask *downloadTask = [[NSURLSession sharedSession]
dataTaskWithRequest:request completionHandler:^(NSData * _Nullable
data,
NSURLResponse * _Nullable response, NSError * _Nullable error) {
dispatch_async(dispatch_get_main_queue(), ^{
//[(AppDelegate *)[[UIApplication
sharedApplication]delegate]stopIndicator];
if (error)
{
//[k_AppDelegate
showAlertwithTitle:LocalizedString(#"Sorry!")
message:error.localizedDescription
buttonTitle1:LocalizedString(#"OK") buttonTitle2:#""];
} else if (data == nil)
{
// [k_AppDelegate
showAlertwithTitle:LocalizedString(#"Error!")
message:LocalizedString(#"The specified server could not be
found.") buttonTitle1:LocalizedString(#"OK") buttonTitle2:#""];
} else {
NSDictionary *encodeDictionary = [NSJSONSerialization
JSONObjectWithData:data options:NSJSONReadingMutableLeaves
if (![encodeDictionary isEqual:[NSNull null]] &&
encodeDictionary != nil) {
if(handler)
{
handler(encodeDictionary, nil);
}
else if ([[encodeDictionary objectForKey:#"status"]
integerValue] != 1)
{
// [k_AppDelegate
showAlertwithTitle:LocalizedString(#"AlertTitle") message:
[encodeDictionary objectForKey:#"message"]
buttonTitle1:LocalizedString(#"OK") buttonTitle2:#""];
}
}
else
{
//[k_AppDelegate
showAlertwithTitle:LocalizedString(#"Error!")
message:LocalizedString(#"The specified server could not be found.")
buttonTitle1:LocalizedString(#"OK") buttonTitle2:#""];
}
}
});
}];
[downloadTask resume];
}

Answer 3

sample coding
.h
#import <UIKit/UIKit.h>
#import "Header.h"
#interface ViewController :
UIViewController<UITableViewDelegate,UITableViewDataSource>
#property (weak, nonatomic) IBOutlet UITableView *tableView;
#end
.m
#import "ViewController.h"
#import "StringPOSTMethod.h"
#import "TableViewCell.h"
#import "HospitalViewController.h"
{
NSMutableArray *array;
NSInteger selectindex;
}
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
[StringPOSTMethod downloadDataFromServer:k_CITYLIST bodyData:nil method:#"POST" postString:[NSString stringWithFormat:#"CITY_ID=1&CITY_ID=2"] withCompletionHandler:^(NSDictionary *resultDictionary, NSError *error)
{
NSLog(#"success is %#", resultDictionary);
array = [[NSMutableArray alloc]init];
array = [[resultDictionary objectForKey:#"details"] mutableCopy];
[_tableView reloadData];
}];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:
(NSInteger)section
{
return array.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellid =#"tablecell";
TableViewCell * cell = [tableView
dequeueReusableCellWithIdentifier:cellid];
cell. cityName.text =[[array
valueForKey:#"city_name"]objectAtIndex:indexPath.row];
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:
(NSIndexPath *)indexPath
{
selectindex=indexPath.row;
[self performSegueWithIdentifier:#"hospitalView" sender:self];
}
#pragma mark - Navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([segue.identifier isEqualToString:#"hospitalView"])
{
hospitalViewController *obj =segue.destinationViewController;
obj.cityname =[[array
valueForKey:#"city_name"]objectAtIndex:selectindex];
obj.cityId =[[array
valueForKey:#"city_id"]objectAtIndex:selectindex];
}
}

Answer 4

table view.h
#import <UIKit/UIKit.h>
#interface TableViewCell : UITableViewCell
#property (weak, nonatomic) IBOutlet UILabel *displyLbl;
#end
table view.m
#implementation TableViewCell
- (void)awakeFromNib {
[super awakeFromNib];
// Initialization code
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
#end
hosdet.h
#import <UIKit/UIKit.h>
#import "Header.h"
#interface HospitalDetailViewController :
UIViewController<UITextViewDelegate>
#property (strong, nonatomic) IBOutlet UITextView *textview;
#property (strong,nonatomic)NSString *hospitaldetailid1;
#property (strong,nonatomic)NSString *cityiddetail1;
#end
hpde.m
#import "HospitalDetailViewController.h"
#import "StringPOSTMethod.h"
#interface HospitalDetailViewController ()
{
NSMutableArray *array;
}
#end
#implementation HospitalDetailViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
[StringPOSTMethod downloadDataFromServer:k_HOSPITALDETAIL bodyData:nil
method:#"POST" postString:[NSString
stringWithFormat:#"CITY_ID=%#&HOSPITAL_ID=%#",
_cityiddetail1,_hospitaldetailid1] withCompletionHandler
:^(NSDictionary *resultDictionary, NSError *error)
{
NSLog(#"success is %#", resultDictionary);
array = [[NSMutableArray alloc]init];
array =[[resultDictionary objectForKey:#"details"]mutableCopy];
_textview.text = [NSString stringWithFormat:#"%#",
[array valueForKey:#"detail"]];
}];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a
little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
#end
hoaviewc.h
#import <UIKit/UIKit.h>
#import "Header.h"
#interface HospitalViewController :
UIViewController<UITableViewDataSource,UITableViewDelegate>
#property (weak, nonatomic) IBOutlet UITableView *hospitalTable;
#property (strong,nonatomic)NSString *recivecity;
#property (strong,nonatomic)NSString *cityid;
#end
hosviec.m
#import "HospitalViewController.h"
#import "StringPOSTMethod.h"
#import "hospitalTableViewCell.h"
#import "depatmentViewController.h"
#interface HospitalViewController ()
{
NSMutableArray *hospitalarray;
NSInteger selecthospitalid;
}
#end
#implementation HospitalViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.title = self.recivecity;
[StringPOSTMethod downloadDataFromServer:k_HOSPITALLIST bodyData:nil
method:#"POST" postString:
[NSString stringWithFormat:#"CITY_ID=%#",_cityid]
withCompletionHandler:^(NSDictionary *resultDictionary, NSError *error)
{
NSLog(#"success is %#", resultDictionary);
hospitalarray = [[NSMutableArray alloc]init];
hospitalarray =[[resultDictionary objectForKey:#"details"]mutableCopy];
[_hospitalTable reloadData];
}];
}
#pragma mark- UITABLE View Delegate
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(
NSInteger)section
{
return hospitalarray.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellid = #"hospitalcell";
hospitalTableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:cellid];
cell.hopitalList.text = [[hospitalarray
valueForKey:#"name"]objectAtIndex:indexPath.row];
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:
(NSIndexPath *)indexPath
{
selecthospitalid=indexPath.row;
[self performSegueWithIdentifier:#"depatment" sender:self];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"depatment"]) {
depatmentViewController *obj = segue.destinationViewController;
obj.hospitalid = [[hospitalarray
valueForKey:#"hospital_id"]objectAtIndex:selecthospitalid];
obj.cityiddepartment = [NSString stringWithFormat:#"%#",_cityid];
}
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
#end
docviec.h
#import <UIKit/UIKit.h>
#include "Header.h"
#interface DoctorsViewController :
UIViewController<UITableViewDelegate,UITableViewDataSource>
#property (strong, nonatomic) IBOutlet UITableView *doctorTable;
#property(strong,nonatomic)NSString *hospitaliddoctor;
#property(strong,nonatomic)NSString *deptiddoctor;
#end
doctviec.m
#import "DoctorsViewController.h"
#import "StringPOSTMethod.h"
#interface DoctorsViewController ()
{
NSMutableArray *doctorarray;
}
#end
#implementation DoctorsViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
[StringPOSTMethod downloadDataFromServer:k_DOCTORSLIST bodyData:nil
method:#"POST" postString:
[NSString stringWithFormat:#"HOSPITAL_ID=%#&DEPARTMENT_ID=%#",
self.hospitaliddoctor,self.deptiddoctor]
withCompletionHandler:^(NSDictionary *resultDictionary, NSError *error)
{
NSLog(#"success is %#", resultDictionary);
doctorarray = [[NSMutableArray alloc]init];
doctorarray =[[resultDictionary objectForKey:#"details"]mutableCopy];
[_doctorTable reloadData];
}];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark- UITableview
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:
(NSInteger)section
{
return doctorarray.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellid = #"doctr";
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:cellid];
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:cellid];
cell.textLabel.text = [[doctorarray
valueForKey:#"spacialist_name"]objectAtIndex:indexPath.row];
return cell;
}
depviec.h
#import <UIKit/UIKit.h>
#import "Header.h"
#interface depatmentViewController :
UIViewController<UITableViewDelegate,UITableViewDataSource>
#property (strong, nonatomic) IBOutlet UITableView *tableviewDepatment;
#property (strong,nonatomic)NSString *hospitalid;
#property (strong,nonatomic)NSString *cityiddepartment;
- (IBAction)DetailsBton:(id)sender;
#end
depvi.m
#import "depatmentViewController.h"
#import "StringPOSTMethod.h"
#import "HospitalDetailViewController.h"
#import "DoctorsViewController.h"
#interface depatmentViewController ()
{
NSMutableArray *array;
NSInteger doctorselct;
}
#end
#implementation depatmentViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
[StringPOSTMethod downloadDataFromServer:k_DEPARTMENTLIST bodyData:nil
method:#"POST" postString:
[NSString stringWithFormat:#"CITY_ID=%#&HOSPITAL_ID=%#",
self.cityiddepartment,self.hospitalid] withCompletionHandler:^(NSDictionary
*resultDictionary, NSError *error)
{
NSLog(#"success is %#", resultDictionary);
array = [[NSMutableArray alloc]init];
array =[[resultDictionary objectForKey:#"details"]mutableCopy];
NSLog(#"%#",array);
[_tableviewDepatment reloadData];
}];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark-UITable Delegate
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:
(NSInteger)section
{
return array.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellid=#"depatmentid";
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:cellid];
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:cellid];
cell.textLabel.text = [[array
valueForKey:#"dept_name"]objectAtIndex:indexPath.row];
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
doctorselct = indexPath.row;
[self performSegueWithIdentifier:#"doctor" sender:self];
}
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"detailll"])
{
HospitalDetailViewController *obj = segue.destinationViewController;
obj.hospitaldetailid1 = self.hospitalid;
obj.cityiddetail1 = self.cityiddepartment;
}
else
{
DoctorsViewController *obj1 = segue.destinationViewController;
obj1.hospitaliddoctor = self.hospitalid;
obj1.deptiddoctor = [[array
valueForKey:#"dept_id"]objectAtIndex:doctorselct];
}
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
- (IBAction)DetailsBton:(id)sender {
[self performSegueWithIdentifier:#"detailll" sender:self];
}
#end