我会给你获取令牌的示例代码，但这是关于访问和刷新令牌的。你现在可以很清楚地理解它了。
ViewController.m
- (void)viewDidLoad {
[super viewDidLoad];
}
- (IBAction)actionLogin:(id)sender {
[self loginForGettingAccessandRefreshToken];
}
-(void)loginForGettingAccessandRefreshToken
{
@try {
NSString *strUserName = [textUsername.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
NSString *strPassword = [textPassword.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
NSString *strParameters = [NSString stringWithFormat:@"client_id=roclient&client_secret=secret&grant_type=password&username=%@&password=%@&scope=dataEventRecords offline_access", strUserName, strPassword];
id param = strParameters;
NSLog(@"The param is - %@",param);
[GlobalShareClass postLoginDataToServer:BASEURL_LOGIN passParameters:param success:^(id res)
{
if([res isKindOfClass:[NSDictionary class]]){
NSDictionary *dictRes = [res copy];
NSString *strErrDesc = [NSString stringWithFormat:@"%@",[dictRes objectForKey:@"error_description"]];
if([[dictRes allKeys] containsObject:@"error_description"]){
dispatch_async(dispatch_get_main_queue(), ^{
//Dispaly UI
});
}
else{
NSString *strAccessToken = [dictRes objectForKey:@"access_token"];
NSString *strRefreshToken = [dictRes objectForKey:@"refresh_token"];
NSString *strTokenType = [dictRes objectForKey:@"token_type"];
NSString *sstrExpiresIn = [dictRes objectForKey:@"expires_in"];
[[NSUserDefaults standardUserDefaults] setObject:globalShare.strRefreshToken forKey:@"refresh_token"];
[[NSUserDefaults standardUserDefaults] setObject:globalShare.strAccessToken forKey:@"access_token"];
[[NSUserDefaults standardUserDefaults] synchronize];
NSDictionary *responseDict = [GlobalShareClass getDataFromToken:globalShare.strAccessToken];
NSString *strFetchedSub = [[NSUserDefaults standardUserDefaults] stringForKey:@"loginIdSub"];
globalShare.loginId = [responseDict objectForKey:@"sub"];
}
}
else{
NSLog(@"The res starts with array");
}
} failure:^(NSError *error) {
// error handling here ...
NSLog(@"%@", [error localizedDescription]);
dispatch_async(dispatch_get_main_queue(), ^{
//Showing Error
});
} passViewController:self];
}
@catch(NSException *exception){
NSLog(@"%@",[exception description]);
}
@finally{
}
}
}
GlobalShareClass.h
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
@interface GlobalShareClass : NSObject{
NSMutableArray *arr;
}
@property (strong, nonatomic) NSMutableArray *arr;
+ (GlobalShareClass *)sharedInstance;
+ (void)postLoginDataToServer:(NSString *)url passParameters:(id)parameter success:(void (^)(id res))successPost failure:(void(^)(NSError* error))failurePost passViewController:(UIViewController *)vc;
+ (NSDictionary *)getDataFromToken:(NSString *)strToken;
+ (NSDictionary *)urlBase64Decode:(NSString *)strToParse;
@end
GlobalShareClass.m
#import "GlobalShareClass.h"
@implementation GlobalShareClass
@synthesize arr;
+ (GlobalShareClass *)sharedInstance {
static GlobalShareClass* _shareInstane = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_shareInstane = [[GlobalShareClass alloc] init];
//Incase array of initialization
_shareInstane.arr = [[NSMutableArray alloc] init];
});
return _shareInstane;
}
+ (void)postLoginDataToServer:(NSString *)url passParameters:(id)parameter success:(void (^)(id res))successPost failure:(void(^)(NSError* error))failurePost passViewController:(UIViewController *)vc{
GlobalShareClass *globalShare = [GlobalShareClass sharedInstance];
__block id jsonResp;
NSData *data = [parameter dataUsingEncoding:NSUTF8StringEncoding];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/x-www-form-urlencoded;charset=UTF-8" forHTTPHeaderField:@"content-type"];
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
NSURLSessionUploadTask *dataTask = [session uploadTaskWithRequest: request
fromData:data completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if(data == nil && error){
NSLog(@"uploadTaskWithRequest error: %@", error);
failurePost(error);
}
else{
jsonResp = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
NSString *strStatusCode = [NSString stringWithFormat:@"%ld",(long)[((NSHTTPURLResponse *)response) statusCode]];
if([strStatusCode isEqualToString:@"400"]){
successPost(jsonResp);
}
NSString *strStatusCodeResponse = [self strGetStatusResponseCode:strStatusCode];
if([strStatusCodeResponse length] > 0){
dispatch_async(dispatch_get_main_queue(), ^{
// Showing error
});
}else{
jsonResp = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
if([jsonResp objectForKey:@"error"] || jsonResp == nil){
dispatch_async(dispatch_get_main_queue(), ^{
[self showAlertController:@"Error" :[jsonResp objectForKey:@"error_description"] passViewController:vc];
});
}
else
successPost(jsonResp);
}
}
}];
[dataTask resume];
}
+ (NSDictionary *)getDataFromToken:(NSString *)strToken {
NSDictionary *data;
NSString *encoded = [strToken componentsSeparatedByString:@"."][1];
data = [GlobalShareClass urlBase64Decode:encoded];
return data;
}
+ (NSDictionary *)urlBase64Decode:(NSString *)strToParse {
@try {
NSDictionary *returnDict;
NSString *output = [strToParse stringByReplacingOccurrencesOfString:@"-" withString:@"+"];
output = [output stringByReplacingOccurrencesOfString:@"_" withString:@"/"];
switch (output.length % 4) {
case 0:
case 1:
break;
case 2:
output = [output stringByAppendingString:@"=="];
break;
case 3:
output = [output stringByAppendingString:@"="];
break;
default:
break;
}
NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:output options:0];
NSString *decodedString = [[NSString alloc] initWithData:decodedData encoding:NSUTF8StringEncoding];
NSLog(@"%@", decodedString);
NSData *data = [decodedString dataUsingEncoding:NSUTF8StringEncoding];
returnDict = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
return returnDict;
}
@catch (NSException *exception) {
NSLog(@"%@", [exception description]);
}
}
@end