对象服务上手2: iOS上使用自定义AWS协议的服务

适用场景

如果要使用自建的对象服务, 该服务兼容AWS的协议, 我们该如何在

遇到的困难

1. AWS通过CocoaPod继承下载过程非常费时
2. 自建的服务其实不支持远程校验服务, 移动端需要承担的一定风险

主要实现

1. 下载AWS的iOS端framework https://amazonaws-china.com/cn/mobile/resources/
2. 手动集成到项目, 可以参考这里
3. 在代码中创建并注册AWSS3TransferUtility

AWSStaticCredentialsProvider *credentialsProvider = [[AWSStaticCredentialsProvider alloc] initWithAccessKey:@"YourAccessKey"
                                                                                                  secretKey:@"YourSecretKey"];

AWSEndpoint *endPoint = [[AWSEndpoint alloc] initWithURLString:@"http://"];
AWSServiceConfiguration *configuration = [[AWSServiceConfiguration alloc] initWithRegion:AWSRegionUSWest2
                                                                                    endpoint:endPoint
                                                                         credentialsProvider:credentialsProvider];
[AWSS3TransferUtility registerS3TransferUtilityWithConfiguration:configuration forKey:@"GoodName"]; //自己定义

4. 上传文件(或别的操作)

NSString *content =@"milo test test";
NSData *testData = [content dataUsingEncoding:NSUTF8StringEncoding];

//获取AWSS3TransferUtility, 注意要跟上文注册时的名字一致
AWSS3TransferUtility *transferUtility = [AWSS3TransferUtility S3TransferUtilityForKey:@"GoodName"];

    [[transferUtility uploadData:testData
                          bucket:@"YourBucketName"
                             key:@"keyname" //自己定义的
                     contentType:@"text/plain"
                      expression:nil
               completionHandler:self.completionHandler] continueWithBlock:^id(AWSTask *task) {
                    if (task.error) {
                        NSLog(@"Error: %@", task.error);
                    }
                    if (task.result) {
                        dispatch_async(dispatch_get_main_queue(), ^{
                            NSLog(@"Uploading...");
                        });
                    }
                    return nil;

    }];