I'm searching for a good tutorial for Restkit 2. Everywhere I'm seeing, they are talking about Object Mapping. Is it not possible to use Restkit and obtain a JSON as string and then use the JSON directly.
AFNetworking Does the Job,
AFNetworking can be installed using cocoapads as shown here,
A sample request using AFNetworking:
NSURL *url = [[NSURL alloc] initWithString:#"https://www.ez-point.com/search"];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request setValue:#"xxxxxxxxxxx" forHTTPHeaderField:#"Authorization" ];
[request setHTTPMethod:#"GET"];
NSMutableDictionary *jsonDic = [[NSMutableDictionary alloc]init];
[jsonDic setValue:#"UJO526" forKey:#"search_text" ];
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:jsonDic options:NSJSONWritingPrettyPrinted error:nil];
[request setHTTPBody:jsonData];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
AFJSONRequestOperation *operation =
[AFJSONRequestOperation JSONRequestOperationWithRequest:request
success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
NSArray *searchResults = JSON;
if ([searchResults count] == 1){
id result = [searchResults objectAtIndex:0];
double latitude = [[result valueForKey:#"latitude"] doubleValue];
double longitude = [[result valueForKey:#"longitude"] doubleValue];
NSString *ezPoint = [result valueForKey:#"value"];
NSString *tags = [result valueForKey:#"tags"];
[self setAnnotation:latitude ForLongitude:longitude withEZPoint:ezPoint WithTags:tags];
}
}
failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
}
];
[operation start];
Related
I have used POST method to call API with header values and params for body on my application.
The server only accepts forms in the format
"form": {
"action" : "login",
"user" : "311"
},
When we use code
NSString *urlString = [NSString stringWithFormat:#"%#", url_string];
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSError *error;
NSDictionary *parameters = #{#"action": #"login", #"user": #"311"};
NSString *params = [self makeParamtersString:parameters withEncoding:NSUTF8StringEncoding];
NSData *jsonData2 = [params dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody: jsonData2];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
My form looks like this
form = {
action = login;
user = 311;
};
Can you produce the result you want?
Could you please help me to solve this issue.
Try
NSString *urlString = [NSString stringWithFormat:#"%#", url_string];
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSError *error;
NSDictionary *parameters = #{#"action": #"login", #"user": #"311"};
NSData *jsonData = [NSJSONSerialization dataWithJSONObject: parameters options:0 error:&error];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody: jsonData];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
How about change the parameters like this.
NSDictionary *parameters = #{#"form":#{#"action": #"login", #"user": #"311"}};
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters options:NSJSONWritingPrettyPrinted error:nil];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request addValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody: jsonData];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
Try This if you need base64 encoding
NSMutableDictionary *param = [#{#"form":#{#"action": #"login", #"user": #"311"}} mutableCopy];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:serviceURL];
NSString *strEncoded = [self encodeParameters:param];
NSData *requestData = [strEncoded dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPBody:requestData];
[request setValue:[NSString stringWithFormat:#"%lu",(unsigned long)requestData.length] forHTTPHeaderField:#"Content-Length"];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
// Function encodeParameters
+(NSString *)encodeParameters:(NSDictionary *)dictEncode
{
// Encode character set as per BASE64
NSCharacterSet *URLBase64CharacterSet = [[NSCharacterSet characterSetWithCharactersInString:#"/+=\n"] invertedSet];
NSMutableString *stringEncode = [[NSMutableString alloc] init];
NSArray *allKeys = [dictEncode allKeys];
for (int i = 0;i < allKeys.count; i++) {
NSString *key = [allKeys objectAtIndex:i];
if([dictEncode valueForKey:key])
{
[stringEncode appendFormat:#"%#=%#",key,[[dictEncode valueForKey:key] stringByAddingPercentEncodingWithAllowedCharacters:URLBase64CharacterSet]];
}
if([allKeys count] > i+1)
{
[stringEncode appendString:#"&"];
}
}
return stringEncode;
}
Try this
NSURL * url = [NSURL URLWithString:#"%#",url_string];
NSURLSessionConfiguration * config = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession * session = [NSURLSession sessionWithConfiguration:config];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
request.HTTPMethod = #"POST";
NSDictionary * paramters = [NSDictionary dictionaryWithObjectsAndKeys:#"login",#"action",#"311",#"user", nil]; // [NSDictionary dictionaryWithObjectsAndKeys:#"value",#"key", nil];
NSDictionary *params = #{#"form": paramters};
NSError *err = nil;
NSData *jsonData2 = [NSJSONSerialization dataWithJSONObject:params options:0 error:&err];
Try this,
NSString *parameters = #"\"form\":{\"action\" : \"login\", \"user\" : \"311\"}";
NSData *jsonData2 = [parameters dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody: jsonData2];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
NSError *error;
NSDictionary *parameters = #{#"form": #{#"action": #"login", #"user": #"311"}};
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters
options:NSJSONWritingPrettyPrinted error:&error];
request.HTTPBody = jsonData
//Using NSURLSession is better option than using NSURLConnection
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
NSHTTPURLResponse* respHttp = (NSHTTPURLResponse*) response;
if (!error && respHttp.statusCode == 200) {
NSDictionary* respondData = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];
NSLog(#"%#", respondData);
} else{
NSLog(#"%#", error);
}
}];
[dataTask resume];
Try AFNetwoking
NSString *urlString = [NSString stringWithFormat:#"URL"];
NSDictionary *para= #{#"action": #"login", #"user": #"311"};
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:#"text/html"];
[manager POST:urlString parameters:para success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"JSON: %#", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
I am trying to upload a UIImage to .Net server by converting the image into base 64 and NSData. But I am getting the response null. Here is my code.
NSString *base64Encoded = [imageData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];
NSString *post= [NSString stringWithFormat:#"myServerSideUrl?Image=%#",base64Encoded];
NSLog(#"PostData: %#",post);
NSString* webStringURL = [post stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLFragmentAllowedCharacterSet]];
NSURL* url = [NSURL URLWithString:webStringURL];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSData *responseData = [[NSData alloc]initWithData:urlData];
if ([response statusCode] >=200 )
{
NSDictionary *jsonData = [NSJSONSerialization JSONObjectWithData: responseData options:0 error:nil];
NSLog(#"%#",jsonData);
}
After some time, I just checked in postman showing like url too long HttpResponseCode:414. Also I tried to send the image in NSData format using AFNetwork, getting the same response. And I just googled about this, saying like send the base 64 string in body. When I tried to send image in body, server side can't get the image. They are creating the API like GET method but the actual method is POST. Is there any other solution about this. Any suggestions.
You are setting NSData to your request body without defining any key-value pair.
Try this code using AFNetworking...
- (void) uploadFileRequestWithHttpHeaders:(NSMutableDictionary*) headers
withServiceName:(NSString*) serviceName
withParameters:(NSMutableDictionary*) params
withFileData:(NSArray*) files
{
NSString *serviceUrl = [httpBaseURL stringByAppendingPathComponent:serviceName];
if (headers == nil)
{
NSDictionary *headers = [[NSDictionary alloc] initWithObjectsAndKeys:#"multipart/form-data",#"Content-Type",nil];
[self setHeaders:headers];
}
else
{
[headers setObject:#"multipart/form-data" forKey:#"Content-Type"];
[self setHeaders:headers];
}
[httpSessionManager POST:serviceUrl
parameters:params
constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
for (NSData *fileData in files)
{
[formData appendPartWithFileData:fileData name:#"userProfileImg" fileName:#"profile_pic.jpg" mimeType:#"image/jpeg"];
}
}
success:^(NSURLSessionDataTask *task, id responseObject) {
if (success != nil)
}
failure:^(NSURLSessionDataTask *task, NSError *error) {
if (failure != nil)
}];
}
- (void) setHeaders:(NSDictionary*) headers
{
if (headers != nil)
{
NSArray *allHeaders = [headers allKeys];
for (NSString *key in allHeaders)
{
[httpSessionManager.requestSerializer setValue:[headers objectForKey:key] forHTTPHeaderField:key];
}
}
}
- (void) addQueryStringWithParams:(NSDictionary*) params
{
[httpSessionManager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, NSDictionary *parameters, NSError *__autoreleasing *error) {
__block NSMutableString *query = [NSMutableString stringWithString:#""];
NSError *err;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:params options:0 error:&err];
NSMutableString *jsonString = [[NSMutableString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
query = jsonString;
return query;
}];
}
And call this method like this..
NSArray *objects = [NSArray arrayWithObjects:#"multipart/form-data",#"1.0",#"ios",token, nil];
NSArray *Keys = [NSArray arrayWithObjects:#"content-type",#"version",#"os",#"token", nil];
NSMutableDictionary *headers = [[NSMutableDictionary alloc]initWithObjects:objects forKeys:Keys];
NSMutableDictionary *paraDic = [[NSMutableDictionary alloc] init];
[paraDic setObject:self.userNameField.text forKey:#"name"];
NSData * userProfileImg = UIImageJPEGRepresentation(image, 0.8f);
imageDataArray = [NSArray arrayWithObjects:userProfileImg, nil];
[self uploadFileRequestWithHttpHeaders:headers withServiceName:#"updateProfile" withParameters:params withFileData:files];
You can try this code using NSURLSession-
- (void)postRequestForSubmitDataToServer {
//Put your action URL
NSURL *aUrl = [NSURL URLWithString:#"action_url.php?&attachment=att&submit=submit"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:aUrl
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:60.0];
[request setHTTPMethod:#"POST"];
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:nil];
NSURLSessionDataTask *postDataTask = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if(error == nil) {
//change JSON type according to ur need.
NSArray *JSON = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error: &error];
NSLog(#"Data = %#",JSON);
} else {
NSLog(#"%#", error);
}
}];
[postDataTask resume];
}
My form data-
<form action="action_url.php" method="post" enctype="multipart/form-data">
Your Photo: <input type="file" name="attachment" size="25" /><br>
<input type="submit" name="submit" value="Submit" /> </form>
I'm posting NSDictionary to server and get NSLog like this :
{"User":"abc#gmail.com","cartItems":[{"productName":"Apple 5s","Qty":1,"price":"1000"}],"userDiscounts":["0001"]}
but the problem is when i am checking this data in server side :
{ '{"User":"abc#gmail.com","cartItems":': { '{"productName":"Apple 4s","Qty":1,"price":"1000"}],"userDiscounts"': { '"0001"]': '' } } }
I'mean, getting '{ and }' on server side.
What is the problem in both the json dictionary.
This is my method:
// Convert object to data, cartDictionary holding data.
NSData* postData = [NSJSONSerialization dataWithJSONObject:cartDictionary options:kNilOptions error:&error];
NSMutableURLRequest *request= [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:combineProductUrl]];
[request setHTTPMethod:#"POST"];
[request setHTTPBody:postData];
// print json:
NSLog(#"JSON summary: %#", [[NSString alloc] initWithData:postData
encoding:NSUTF8StringEncoding]);
Use wrapper of NSURLConnection i.e AFNetworking https://github.com/AFNetworking/AFNetworking. As per your problem
NSMutableDictionary *parameters = [NSMutableDictionary dictionaryWithObjectsAndKeys: deviceCode ,#"Key 1", Value 1 , #"Key 2", Value 2 , nil];
NSLog(#"Parameter %#",parameters);
AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL: [NSURL URLWithString:#"http://yourbaseURL/"]];
[client setDefaultHeader:#"contentType" value:#"application/json; charset=utf-8"];
client.parameterEncoding = AFJSONParameterEncoding;
NSMutableURLRequest *request = [client requestWithMethod:#"POST" path:#"yourPostURL" parameters:parameters];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON)
{
NSLog(#"response %#",JSON);
}
failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON)
{
NSLog(#"request %#",[error localizedDescription]);
}];
[operation start];
hope it helps you.
I need to send request like this:
"http://api.site.com/login?q={"meta":{"api_key":"cb2f734a14ee3527b3"},"request":{"id":"username#host.name","password":"passw0rd"}}`
...the response to which should look like {"id":399205,"token":"d43f8b2fe37aa19ac7057701"} To do so, I have tried the following code:
self.responseData = [NSMutableData data];
NSDictionary *apiKeyDict = [NSDictionary dictionaryWithObject:#"cb2f734a14ee3527b3" forKey:#"api_key"];
NSDictionary *idPasswordDict = [NSDictionary dictionaryWithObjectsAndKeys:#"tc-d#gmail.com",#"id", #"abc",#"password", nil];
NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:apiKeyDict, #"meta", idPasswordDict, #"request", nil];
NSURL *url = [NSURL URLWithString:#"http://api.site.com/login?="];
NSError *error = nil;
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url
cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
NSData *requestData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setValue:[NSString stringWithFormat:#"%d", [requestData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody: requestData];
NSURLConnection *connection = [[NSURLConnection alloc]initWithRequest:request delegate:self];
if (connection) {
self.recievedData = [NSMutableData data];
}
Later on, I get in the following:
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[self.recievedData appendData:data];
NSLog(#"%#",[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding]);
}
The response data comes back as "<h1>CHttpException</h1><p>wrong sign</p>" As I understand, the way of adding json data to the current url is not appropriate in this case. Does anyone have advice on how I can fix this?
resolve my problem. Convert posted json to appended string to base url-string. that's how I did it:
NSData *requestData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
NSMutableString *dictString = [[NSMutableString alloc]initWithData:requestData encoding:NSUTF8StringEncoding];
[dictString insertString:#"http://api.site.com/login?q=" atIndex:0];
//don't know why but dictString contains a lot of #"\n" and spaces to present it nice-formated.
[dictString replaceOccurrencesOfString:#"\n" withString:#"" options:nil range:NSMakeRange(0, dictString.length)];
[dictString replaceOccurrencesOfString:#" " withString:#"" options:nil range:NSMakeRange(0, dictString.length)];
NSURL *url = [NSURL URLWithString:[dictString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
if it helps someone will appreciate tick near this issue=)
You can do it right using AFNetworking library - it's easy to implement and to work with. Whole code you need in this case is quite simple and it was always working well for me.
NSDictionary *apiKeyDict = [NSDictionary dictionaryWithObject:#"cb2f734a14ee3527b3" forKey:#"api_key"];
NSDictionary *idPasswordDict = [NSDictionary dictionaryWithObjectsAndKeys:#"tc-d#gmail.com",#"id", #"abc",#"password", nil];
NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:apiKeyDict, #"meta", idPasswordDict, #"request", nil];
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:0 error:nil];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSString *urlString = #"http://api.site.com/login";
NSDictionary *parameters = [NSDictionary dictionaryWithObjectsAndKeys:jsonString, #"q", nil];
NSURL *url = [NSURL URLWithString:urlString];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
NSMutableURLRequest *request = [httpClient requestWithMethod:#"POST" path:nil parameters:parameters];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
//OK
NSLog(#"%#", JSON);
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
//Response failed
}];
[operation start];
I want to "POST" a JSON value to server and response a json databack.
The URL: http://solok.com:8080/soloo/phone/execute?content={"method":"tet_123","version","1"}, can get the right value(JSON) in browser.
ASIHTTPRequest way:
NSDictionary *postDic = [NSDictionary dictionaryWithObjectsAndKeys:#"tet_123",#"method",#"1",#"version",nil];
NSString *postString;
//Then convert the "postDic" to NSString, the value is:{"method":"tet_123","version","1"} assign to postString;
psotString = ...;
ASIFormDataRequest *req=[ASIFormDataRequest requestWithURL:url];
[req setRequestMethod:#"POST"];
[req setPostValue:posStr forKey:#"content"];
[req startAsynchronous];
[req setDelegate:self];
[req setCompletionBlock:^{
NSData *d = [req responseData];
NSLog(#"respond is %#".d);
}
It works smoothly! But AFNetworkding is not, here is the code;
NSURL *url = [NSURL URLWithString:#"http://localhost:8080"];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
[httpClient setParameterEncoding:AFJSONParameterEncoding];
NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:#"tet_123",#"method",#"1",#"version",nil];
NSDictionary *dic1 = [NSDictionary dictionaryWithObjectsAndKeys:dic,#"content", nil];
[httpClient postPath:#"/soloo/phone/execute" parameters:dic1 success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSDictionary *d = (NSDictionary *)responseObject;
NSLog(#"success is %#",d);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"fail");
}];
The output is: success is <>.
or i use another way of AFNetworking:
NSMutableURLRequest *request = [httpClient requestWithMethod:#"POST"path:#"/soloo/phone/execute" parameters:dic1];
AFJSONRequestOperation *ope = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
NSLog(#"response %d",response.statusCode);
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
NSLog(#"fail%d JSON %#",response.statusCode,JSON);
}];
The respond code is 200, which means connection is correct, but still no the correct result.
Not sure why. Any help, thank in advance!
The reason is is the backend is a "GET" method, but i did "POST", meanwhile, i forgot: [Operation start] method.