xcode AFNetworking 发布表单数据

AFNetworking Post Form-Data

提问by hokiewalrus

I am trying to do a simple POST request with Form-Data to an api but I always get a status 401 in return.

我正在尝试使用 Form-Data 对 api 执行简单的 POST 请求，但我总是得到状态 401 作为回报。

I can easily make the call outside of xcode (in Postman for instance) with success, all I do is POST to the url with key-value pairs of type Form-Data but in xcode it always fails.

我可以轻松地在 xcode 之外（例如在 Postman 中）成功地进行调用，我所做的就是使用 Form-Data 类型的键值对 POST 到 url，但在 xcode 中它总是失败。

Here is my AFHTTPClient:

这是我的 AFHTTPClient：

@implementation UnpaktAPIClient

+ (id)sharedInstance {
    static UnpaktAPIClient *__sharedInstance;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        __sharedInstance = [[UnpaktAPIClient alloc] initWithBaseURL:[NSURL URLWithString:UnpaktAPIBaseURLString]];
    });
    return __sharedInstance;
}

- (id)initWithBaseURL:(NSURL *)url {
    self = [super initWithBaseURL:url];
    if (self) {
        [self registerHTTPOperationClass:[AFJSONRequestOperation class]];
        [self setParameterEncoding:AFFormURLParameterEncoding];
    }
    return self;
}

- (NSDictionary *)login:(NSDictionary *)credentials {

    [[UnpaktAPIClient sharedInstance] postPath:@"/api/v1/users/login"
                                    parameters:credentials
                                        success:^(AFHTTPRequestOperation *operation, id response) {
                                            NSLog(@"success");
                                        }
                                        failure:^(AFHTTPRequestOperation *operation, NSError *error){
                                            NSLog(@"%@", error);
                                        }];

    return nil;
}

I've also attempted creating a request with a requestOperation:

我还尝试使用 requestOperation 创建请求：

- (NSDictionary *)login:(NSDictionary *)credentials {

    NSMutableURLRequest *request = [[UnpaktAPIClient sharedInstance] requestWithMethod:@"POST" path:@"/api/v1/users/login" parameters:credentials];

    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request
                                                                                        success:^(NSURLRequest *request, NSHTTPURLResponse *response, id json) {
                                                                                            NSLog(@"success");
                                                                                        }
                                                                                        failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id json){
                                                                                            NSLog(@"%@", error);
                                                                                        }];
    [operation start];

    return nil;
}

But I get the exact same error all the time: Error Domain=AFNetworkingErrorDomain Code=-1011 "Expected status code in (200-299), got 401". I'm expecting JSON feedback, you can see the success condition in the attached picture. I suspect it's something very simple but I'm pulling my hair out trying to find it, I'm quite new to networking. Any help would be awesome, thanks.

但我一直得到完全相同的错误：Error Domain=AFNetworkingErrorDomain Code=-1011 "Expected status code in (200-299), got 401". 我期待 JSON 反馈，您可以在附图中看到成功条件。我怀疑这是非常简单的事情，但我正在努力寻找它，我对网络还很陌生。任何帮助都会很棒，谢谢。

UPDATE

更新

Since the Postman request has blank params and headers, I figured I needed to get to the form body. Changing the request to:

由于 Postman 请求具有空白参数和标题，我认为我需要访问表单主体。将请求更改为：

- (NSDictionary *)login:(NSDictionary *)credentials {

    NSURLRequest *request = [self multipartFormRequestWithMethod:@"POST"
                                                            path:@"/api/v1/users/login"
                                                      parameters:nil
                                       constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

                                       }];
    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request
                                                                                        success:^(NSURLRequest *request, NSHTTPURLResponse *response, id json) {
                                                                                            NSLog(@"success");
                                                                                        }
                                                                                        failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id json) {
                                                                                            NSLog(@"%@", error);
                                                                                        }];
    [operation start];
    return nil;
}

Now gives me a 404 error, which is what I would expect without a valid email and password, I just need to figure out how to add one to the body of the form, anything I try to add gives me the "request body stream exhausted" error.

现在给了我一个 404 错误，这是我在没有有效电子邮件和密码的情况下所期望的，我只需要弄清楚如何将一个添加到表单的正文中，我尝试添加的任何内容都会给我“请求正文流耗尽“ 错误。

回答by hokiewalrus

Got it, turns out it's a little verbose to add key/value pairs to form-data but I accomplished it like so:

明白了，事实证明将键/值对添加到表单数据有点冗长，但我是这样完成的：

NSMutableData *email = [[NSMutableData alloc] init];
NSMutableData *password = [[NSMutableData alloc] init];
[email appendData:[[NSString stringWithFormat:@"[email protected]"] dataUsingEncoding:NSUTF8StringEncoding]];
[password appendData:[[NSString stringWithFormat:@"qwerty"] dataUsingEncoding:NSUTF8StringEncoding]];
[formData appendPartWithFormData:email name:@"email"];
[formData appendPartWithFormData:password name:@"password"];