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.
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.
}
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];
}
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];
}
}
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.
}
// 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