ios - 如何在ios中实现刷新令牌

Question

只有一些 api 调用需要令牌。当 401 发生时，将进行刷新令牌调用。对于每次调用，令牌都会刷新。401发生时如何同步执行1个以上的api

Answer 1

这取决于你，你如何设计流程，但我做了几乎同样的问题，就像在 Objective C 中一样

• 在我的情况下调用类似userProfileGETRequest的方法
• 在调用userProfileGETRequest之前检查令牌是否过期（在您的情况下可能是状态码 == 401）
• 如果令牌未过期，只需在我的情况下使用最后一个令牌调用 API userProfileAPI
• 如果令牌过期，则调用刷新令牌并带有成功和失败回调

• 如果成功刷新令牌，请使用更新的刷新令牌调用userProfileAPI API。

      + (void) userProfileGETRequest:(NSDictionary *)headerParams urlQuery: (NSString*)action parameters:(NSDictionary*)params docOpenPassword: (NSString*)password docOpenOtp: (NSString*)otp
              onComplete:(void (^)(id json, id code, id url))successBlock
                 onError:(void (^)(id error, id code, id url))errorBlock {if ([[SingletonSDK sharedInstance] isTokenExpired:[NSDate date]]) {[self refereshToken:nil :^(id json, id code) {
      [[SingletonSDK sharedInstance] handleLoginResponseObject:json];
  
          [self userProfileAPI:headerParams urlQuery:action parameters:params
  
                    onComplete:^(id json, id code, id url) {
                        successBlock(json, code, url);
                    } onError:^(id error, id code, id url) {
                        errorBlock(error, code, url);
                    }];
  
      } onError:^(id error, id code) {
          [[SingletonSDK sharedInstance] hideProgessHud];
          return ;
      }];
  }
  
  } else {
      [self userProfileAPI:headerParams urlQuery:action parameters:params
                onComplete:^(id json, id code, id url) {
                    successBlock(json, code, url);
                } onError:^(id error, id code, id url) {
                    errorBlock(error, code, url);
                }];
  }}
  

//userProfileAPI 方法

+ (void) userProfileAPI:(NSDictionary *)headerParams urlQuery: (NSString*)action parameters:(NSDictionary*)params 
                                         onComplete:(void (^)(id json, id code, id url))successBlock
                                            onError:(void (^)(id error, id code, id url))errorBlock
{

NSString *authorizationValue = [self setAuthorizationValue:action];
NSString *language = [self editedLanguageNameAsApiRequired];

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

//set headers values
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[manager.requestSerializer setValue:language forHTTPHeaderField:@"Accept-Language"];
[manager.requestSerializer setValue:authorizationValue forHTTPHeaderField:@"authorization"];

[manager GET:action parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"getRequest response success");
    NSString *url = [[[operation response] URL] absoluteString];
    NSInteger statusCode = [operation.response statusCode];
    NSNumber *statusObject = [NSNumber numberWithInteger:statusCode];

    successBlock(responseObject, statusObject, url);
}
     failure:^(AFHTTPRequestOperation *operation, NSError *error)
 {
     NSString *url = [[[operation response] URL] absoluteString];
     NSInteger statusCode = [operation.response statusCode];
     NSNumber *statusObject = [NSNumber numberWithInteger:statusCode];
     if ([self takeDesiredActionIfAccessTokenExpired:statusCode]) {
         return ;
     }
     id responseObject = operation.responseData;
     id json = nil;
     id errorMessage = nil;

     if ([statusObject integerValue] == 404) {
         errorMessage = [[SingletonSDK sharedInstance] getStringValueFromLanguageKey: COMMON_ERROR_SHARED_PREFERENCES];//NSLocalizedString(COMMON_ERROR_RESOURCE_NOT_FOUND, nil);
     } else {
         if (responseObject) {

             json = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:&error];
             errorMessage = [(NSDictionary*)json objectForKey:@"Message"];

         }else{

             json = [error.userInfo objectForKey:NSLocalizedDescriptionKey];
             errorMessage = json;

         }
     }


     if(![errorMessage isKindOfClass:[NSString class]]){
         errorMessage = [[SingletonSDK sharedInstance] getStringValueFromLanguageKey: COMMON_ERROR_MSG] ; //NSLocalizedString(COMMON_ERROR_MSG, nil);
     }

 }];
}