Hi I am making post request using AFnetworking 2.0.
My request looks like this.
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFXMLParserResponseSerializer serializer];
[manager.requestSerializer setValue:#"some value" forHTTPHeaderField:#"x"];
[manager POST:url parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
//doing something
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// error handling.
}];
How can i cancel this request???
POST method return the AFHTTPRequestOperation operation. You can cancel it by calling cancel.
AFHTTPRequestOperation *post =[manager POST:nil parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
//doing something
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// error handling.
}];
//Cancel operation
[post cancel];
Tried [manager.operationQueue cancelAllOperations] ?
Related
Using AFNetworking for communication between REST API and my application I ran into a strange behaviour wenn trying to upload an image with PATCH request.
I use following code:
- (void) uploadImage: (UIImage *)image {
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *parameters = #{};
AFHTTPRequestSerializer *requestSerializer = [manager requestSerializer];
NSError *e = nil;
NSMutableURLRequest *request = [requestSerializer multipartFormRequestWithMethod:#"PATCH"
URLString:requestString
parameters:parameters
constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileData:UIImagePNGRepresentation(image)
name:#"image"
fileName:#"image.png"
mimeType:#"image/png"];
} error:&e];
[manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog("OK");
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog("FAILED");
}];
}
Neither success not failed block of operation will be reached.
Wenn I change the request method to POST everything works fine, but the Server accepts only PATCH method for this case.
Am I doing something wrong?
I finally found a solution for my question:
- (void)uploadImage:(UIImage *)image
withSuccess:(SomeSuccessBlock)success
failure:(SomeFailureBlock)failure {
NSString *requestString = "Some url";
NSError *e = nil;
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
AFHTTPRequestSerializer *requestSerializer = [manager requestSerializer];
NSMutableURLRequest *request = [requestSerializer multipartFormRequestWithMethod:#"POST" URLString:requestString parameters:#{}
constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileData:UIImagePNGRepresentation(image)
name:#"user[avatar]"
fileName:#"avatar.png"
mimeType:#"image/png"];
} error:&e];
if (e && failure) {
failure(e);
return;
}
[request setHTTPMethod:#"PATCH"];
[request setValue:#"PATCH" forHTTPHeaderField:#"X-HTTP-Method-Override"];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
if (success) {
success();
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (failure) {
failure(error);
}
}];
[operation start];
}
I'm sending a POST request:
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
NSDictionary *parameters = #{#"method": #"login", #"email":#"email", #"password":#"password"};
[manager POST:#"http://www.apiwebsite.com" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"JSON: %#", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
My responseObject is:
JSON: <0d0a7b22 72657370 6f6e7365 223a224f 4b222c22 30223a22 6d61696c
696e675f 6b657922 2c223122 3a226239 65653766 34643238 64333730
30666663 37393734 65376665 66626663 3136227d>
But calling the api with POSTMAN i get:
{"response":"OK", "id":"1234223123"}
How can I get the plain or JSON response to work with it?
thanks!
To get JSON object use proper serializer AFJSONResponseSerializer instead of AFHTTPResponseSerializer you uses now.
For debug purpose convert NSData to NSString
NSLog(#"JSON: %#", [[NSString alloc] initWithData: responseObject encoding:NSUTF8StringEncoding]);
I need to send all my forms on server, firstly text forms and then images. Do someone working with it?
The documentation page of AFNetworking shows the following example:
Multi-Part Request
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *parameters = #{#"foo": #"bar"};
NSURL *filePath = [NSURL fileURLWithPath:#"file://path/to/image.png"];
[manager POST:#"http://example.com/resources.json" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileURL:filePath name:#"image" error:nil];
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Success: %#", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
I'm trying to have my app load an HTML web page into a "responseObject" that I can later parse.
Here is my code:
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFHTTPRequestSerializer serializer];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:#"application/xhtml+xml"];
NSDictionary *parameters = #{#"ghinno": #"1151213"};
[manager GET:#"http://m.ghin.com/HLR.aspx" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"HTTP: %#", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
...and this is the output. I should be seeing the html from the webpage. Can you help me understand what I am doing wrong?
Ah, the answer lies below...
Essentially, it was an encoding / decoding of the response object that was causing my issues. Here is the final solution: (notice the line beginning with "NSString)...
NSURL *URL = [NSURL URLWithString:#"http://m.ghin.com/HLR.aspx?ghinno=1151213"];
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSString *string = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
NSLog(#"%#", string);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
[op start];
I tried to make GET HTTP response. I need to get the html code for the subsequent parsing, but responseObject is nil.
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:#"text/html"];
[manager GET:#"http://www.example.com/" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSError *error;
HTMLParser *parser = [[HTMLParser alloc] initWithString:responseObject error:&error];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
For get html code we will need to build a custom response serializer to decode the NSData response from the web server into a NSString. We will need to subclass AFHTTPResponseSerializer and implement the following method:
- (id)responseObjectForResponse:(NSURLResponse *)response
data:(NSData *)data
error:(NSError *__autoreleasing *)error
{
return [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
}
Why for example you have not use this solution below instead of subcalssing. It does the same thing, but you don't need to create additional files, just for overload one method.
So you can just add encoding your responseObjet in the block for example, and it will work as well. I am using POST in my example but it should work with GET in the same way but without parameters, but idea of the just conversation.
+ (void)makeRequestWithParams:(NSDictionary *)params
success:(OperationCompletionBlock)success
failure:(OperationCompletionBlock)failure
{
NSString *path = #"http://www.example.com/";
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFCompoundResponseSerializer serializer];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:#"text/html"];
[manager POST:path parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSString* encodedString = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
NSLog(#"%#", encodedString);
success(nil);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
failure(nil);
}];
}