AWSWebIdentityCredentialsProvider如何获取参数值？

想使用下面的代码做认证，AWSWebIdentityCredentialsProvider如何获取参数值？

，但我无法得到的数值需要传递到下面的参数， providerId，roleArn，roleSessionName。

但是，我将从我们的本地服务器接收它的webIdentityToken值。

AWSWebIdentityCredentialsProvider *provideer = [AWSWebIdentityCredentialsProvider credentialsWithRegionType:AWSRegionUSEast1 providerId:@"" roleArn:@"" roleSessionName:"" webIdentityToken:@""];

问候，铢

来源

2014-10-01 Bhat

你好，你可能想考虑使用[亚马逊Cognito]（http://aws.amazon.com/cognito/）。它通过STS提供与Web联合身份验证相同的提供者支持。 – 2014-10-01 15:29:16

我已创建自定义的凭据提供与亚马逊的认证机制完美的作品:)。我遵循了与静态凭据提供者相同的步骤。

来源

2014-10-19 00:58:12 Bhat

你可以给我你代码示例吗？我正在尝试做同样的事情。我的老板坚持不使用cognito，所以我需要这样做。 – tyegah123 2016-01-13 06:59:15

@ tyegah123我已经添加了答案 – Bhat 2016-01-18 13:02:41

非常感谢！ – tyegah123 2016-01-19 06:50:08

Class.h 
------- 

@interface AWSCustomCredentialProvider : NSObject <AWSCredentialsProvider> 

@property (nonatomic, readonly) NSString *accessKey; 

@property (nonatomic, readonly) NSString *secretKey; 

@property (nonatomic, readonly) NSString *sessionKey; 

+ (instancetype)credentialsWithAccessKey:(NSString *)accessKey 
           secretKey:(NSString *)secretKey sessionKey: 
(NSString*)sessionKey; 

+ (instancetype)credentialsWithCredentialsFilename:(NSString *)credentialsFilename; 

- (instancetype)initWithAccessKey:(NSString *)accessKey 
         secretKey:(NSString *)secretKey sessionKey:(NSString*)sessionKey; 


@end 

Class.m 
------- 
+ (instancetype)credentialsWithAccessKey:(NSString *)accessKey 
           secretKey:(NSString *)secretKey sessionKey:(NSString*)sessionKey 
{ 
    AWSCustomCredentialProvider *credentials = [[AWSCustomCredentialProvider alloc] initWithAccessKey:accessKey 
                           secretKey:secretKey sessionKey:sessionKey]; 
    return credentials; 
} 
+ (instancetype)credentialsWithCredentialsFilename:(NSString *)credentialsFilename 
{ 
    NSString *filePath = [[NSBundle bundleForClass:[self class]] pathForResource:credentialsFilename ofType:@"json"]; 
    NSDictionary *credentialsJson = [NSJSONSerialization JSONObjectWithData:[NSData dataWithContentsOfFile:filePath] 
                    options:NSJSONReadingMutableContainers 
                     error:nil]; 
    AWSCustomCredentialProvider *credentials = [[AWSCustomCredentialProvider alloc] initWithAccessKey:credentialsJson[@"accessKey"] 
                           secretKey:credentialsJson[@"secretKey"] sessionKey:credentialsJson[@"sessionKey"]]; 
    return credentials; 
} 
- (instancetype)initWithAccessKey:(NSString *)accessKey 
         secretKey:(NSString *)secretKey sessionKey:(NSString*)sessionKey 
{ 
    if (self = [super init]) { 
     _accessKey = accessKey; 
     _secretKey = secretKey; 
     _sessionKey = sessionKey; 
    } 
    return self; 
} 
Usage is: 
----- 
AWSCustomCredentialProvider *credentialsProvider = [AWSCustomCredentialProvider credentialsWithAccessKey:[[NSUserDefaults standardUserDefaults] objectForKey:AccessKey_Element] secretKey:[[NSUserDefaults standardUserDefaults] objectForKey:SecretKey_Element] sessionKey:[[NSUserDefaults standardUserDefaults] objectForKey:Token_Element]];

来源

2016-01-18 13:01:57 Bhat

AWSWebIdentityCredentialsProvider如何获取参数值？

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