我想用SNSPublishRequest发布到SNS，但我无法弄清楚如何格式化JSON实际使用的APS字典中设置的参数。如果我把东西给了默认，它将发送该消息。但是，如果我添加了APNS字典为好，它似乎没有显示任何东西。这是我如何格式化JSON请求 - ？我失去了一些东西。

 的NSDictionary *参数= @ {@默认：@，
                             @APNS：@ {@APS：@ {@警告：@你好}}};
NSError *错误;
的NSData * jsonData = [NSJSONSerialization dataWithJSONObject：参数
                                                   选项​​：0
                                                     错误：放大器;错误]

的NSString * JSONString = [[NSString的页头] initWithBytes：[jsonData字节]长：[jsonData长]编码：NSUTF8StringEncoding]。
的NSLog（@JSON输出：％@，JSONString）;

SNSPublishRequest * PR = [[SNSPublishRequest页头] initWithTopicArn：@someTopicandMessage：JSONString]。
pr.messageStructure = @JSON;
 

解决方案

我觉得SNS的的APN字典期待一个JSON EN codeD字符串格式本身。我们要逃离一切，并添加\ S

 的NSString * JSONString = @{\默认\：\＆LT;在这里输入你的信息和GT; \，\APNS_SANDBOX \：\{\\\ APS \\\：{\\\警报\\\：\\\＆LT; HELLO＆GT; \\\}} \};
 

I am trying to publish to SNS using the SNSPublishRequest but I can't figure out how to format the JSON to actually use the parameters set for the aps dictionary. If I put in something for the "default" it will send that message. But if I add the APNS dictionary as well, it seems to not show anything. This is how I am formatting the JSON request - am I missing something?

NSDictionary *parameters = @{@"default" : @"",
                             @"APNS" : @{@"aps": @{@"alert": @"hello"}}};
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters
                                                   options:0
                                                     error:&error];

NSString *JSONString = [[NSString alloc] initWithBytes:[jsonData bytes] length:[jsonData length] encoding:NSUTF8StringEncoding];
NSLog(@"JSON OUTPUT: %@",JSONString);

SNSPublishRequest *pr = [[SNSPublishRequest alloc] initWithTopicArn:@"someTopic" andMessage:JSONString];
pr.messageStructure = @"json";

I think SNS's APNs dictionary expects an JSON encoded string format itself. We have to escape all the " and add the \s

NSString* JSONString = @"{\"default\": \"<enter your message here>\",\"APNS_SANDBOX\":\"{\\\"aps\\\":{\\\"alert\\\":\\\"<HELLO>\\\"}}\"}";