I just test the face.com face recognition api and I have success with json requests:
NSString *url = #"http://api.face.com/faces/detect.json?api_key=myapi&api_secret=mysecret&urls=http://userserve-ak.last.fm/serve/_/47363849/Christina+Aguilera+HQ+PNG.png";
// Create new SBJSON parser object
SBJsonParser *parser = [[SBJsonParser alloc] init];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];
// Perform request and get JSON back as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
// Get JSON as a NSString from NSData response
NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
// parse the JSON response into an object
// Here we're using NSArray since we're parsing an array of JSON status objects
NSDictionary *obj = [parser objectWithString:json_string];
//
NSString *status = [obj objectForKey:#"status"];
//
NSLog(#"status: %#", status);
This works when I pass the api key, secret and the IMAGE ON THE WEB as GET params, like:
http://api.face.com/faces/detect.json?api_key=4b4b4c6d54c37&api_secret= &urls= http://farm3.static.flickr.com/2566/3896283279_0209be7a67.jpg
Now, I want to upload a raw image data from my app...but this is not so well documented on the site:
http://developers.face.com/docs/api/faces-detect/
There it says:
Code:
Optional [no name] The raw image data for the photo (when instead of url, an image is uploaded)
This is the problem:
How do I pass the raw data as POST along with the apikey and secret?
I know it must be as POST, but how?
Raw data = NSData, so all you need to do is append the imageData to the URL, as done below.
NSString *url = [NSString stringWithFormat:#"http://api.face.com/faces/detect.json?api_key=myapi&api_secret=mysecret&code=%#", imageData];
Related
Api Address：
http://suggest.taobao.com/sug?area=etao&code=utf-8&callback=KISSY.Suggest.callback&q=iphone
return：
KISSY.Suggest.callback({"result": [["iphone4s", "9809"], ["iphone5", "13312"], ["iphone4 手机", "69494400"], ["iphone5 港行", "14267"], ["iphone5三网", "2271160"], ["iphone4手机壳", "6199679"], ["iphone 5手机壳", "2527284"], ["iphone 5 保护壳", "5727586"], ["iphone 4贴膜", "147271"], ["iphone5壳", "2628540"]]})
NSURL * url = [NSURL URLWithString:#"http://suggest.taobao.com/sug?area=etao&code=utf-8&callback=KISSY.Suggest.callback&q=iphone"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSHTTPURLResponse* urlResponse = nil;
NSError * error = nil;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
NSData *date = [NSData alloc]init
SBJsonParser *jsonParser = [[SBJsonParser alloc] init];
// NSMutableArray *array=[NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableLeaves error:&error];
NSMutableArray *array = [jsonParser objectWithData:responseData];
NSLog(#"%#",array);
this array is null. i dont know the reason.
as i refer you request URL ,it has callback in it, if you keep it, it will not return you json as response, so remove "&callback=KISSY.Suggest.callback" from your URL
// Make sure you have include SBJSON files in your Project, as well you have imported header in your View Controller
#import "JSON.h"
// your request URL
NSURL * url = [NSURL URLWithString:#"http://suggest.taobao.com/sug?area=etao&code=utf-8&q=iphone"];
// URL Request
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSHTTPURLResponse* urlResponse = nil;
NSError * error = nil;
// initiate Request to get Data
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
// Encode your Response
NSString *content = [[NSString alloc] initWithBytes:[responseData bytes] length:[responseData length] encoding:NSUTF8StringEncoding];
// Now read a Dictionary from it using SBJSON Parser
NSDictionary *responseDict = [content JSONValue];
NSLog(#"Response [%#]",responseDict);
I'm not familiar with the SBJsonParser, but the format of the returned string looks like JSONP, not JSON. I would imagine simply cleaning out the wrapper call would get you what you are after.
Also, note that the 'root' of your response is a dictionary, not an array.
{"result": [[...
means that the code might should look like this:
NSDictionary *response = //... decode
NSArray *results = [response objectForKey:#"result"];
Edited
You just need to use http://suggest.taobao.com/sug?area=etao&code=utf-8&q=iphone instead of http://suggest.taobao.com/sug?area=etao&code=utf-8&callback=KISSY.Suggest.callback&q=iphone you own code will work..
I am getting error during json parsing. When I trying to send the parameters using browser then it send me the success message that record store successfully. But when I send form parameters through iphone then i get nothing and in array i get NULL value.This is the json parsing code.
NSString *string1 = [[NSString alloc]initWithFormat:#"http://195.78.76.34/bedspace/mobileapi.php?action=save_room_info&Area=%#&Address=%#&Living_room=%#&Amenties=%#&Type_of_cost=%#&cost_of_room=%#&Security_deposit=%#&STLC=%#&Days_available=%#&Bill_included=%#&Broadband_available=%#&Exc_Smoke=%#&Exc_gender=%#&Exc_pets=%#&Exc_age=%#&Exc_language=%#&Exc_nationality=%#&Exc_Sexorientition=%#&Exc_intrest=%#&Pre_smoke=%#&Pre_gender=%#&Pre_occupation=%#&Pre_pets=%#&Pre_min_age=%#&Pre_max_age=%#&Pre_nationaltiy=%#&Pre_Language=%#&Pre_Sexorientition=%#&Misc=%#&Title=%#&Description=%#&Your_name=%#&Your_email=%#&Email_alert=%#&No_of_rooms=%#&Country=%#&City=%#&State=%#&Size_of_property=%#&Type_of_property=%#&Occupets_property=%#&My_property_status=%#&Amenties_two=%#&Size_of_room=%#&Refrence_required=%#",area,address,livingRoomVal,amenties,typeOfCost,costOfRoom,securityDeposit,STLC,daysAvailable,billsIncluded,broadbandAvailable,eSmoke,eGender,ePets,eAge,eLanguage,eNationality,eSexOrientation,eInterest,pSmoke,pGender,pOccupation,pPets,pMinAge,pMaxAge,pNationality,pLanguage,pSexOrientation,misc,title,description,yourName,yourEmail,emailAlerts,noOfRooms,country,city,state,sizeOfProperty,typeOfProperty,occupentsOfProperty,myPropertyStatus,amentiesTwo,sizeOfRoom,refrenceRequired];
NSLog(#"string 1 value %#",string1);
NSURL *urlRequest = [NSURL URLWithString:string1];
NSURLRequest *request = [[NSURLRequest alloc]initWithURL:urlRequest];
NSData *dataResponce = [NSURLConnection sendSynchronousRequest:request returningResponse:Nil error:Nil];
NSError *jsonParsingError = nil;
NSArray *publicTimeline = [NSJSONSerialization JSONObjectWithData:dataResponce options:0 error:&jsonParsingError];
NSLog(#"get values %#",publicTimeline);
I don't know what the problem is. I also used SBJsonParser but i get nothing in array and after that I used NSJSONSerialization and same problem still happen i got nothing in NSData and in NSArray.
You cannot fill the URL with parameters and still expect it to be legal, so you need to URL Encode the URL before use:
NSURL *urlRequest = [NSURL URLWithString:[string1 stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
EDITED CODE
I had done in this way:
// Create new SBJSON parser object
SBJsonParser *parser = [[SBJsonParser alloc] init];
// Prepare URL request to download statuses from Twitter
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.google.com/maps?q=restaurant&sll=23.00,72.00&radius=2000&output=json"]];
// Perform request and get JSON back as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
// Get JSON as a NSString from NSData response
NSString *json_string = [[NSString alloc] initWithData:response encoding:NSASCIIStringEncoding];
[json_string stringByReplacingOccurrencesOfString:#"while(1);" withString:#""];
NSDictionary *json_dict = [json_string JSONValue];
NSLog(#"%#",json_dict);
But then also I'm getting null in json_dict
I want to parse the data which I get from Google Webservice.
http://www.google.com/maps?q=restaurant&sll=23.00,72.00&radius=2000&output=json
I have used the below code:
// Create new SBJSON parser object
SBJsonParser *parser = [[SBJsonParser alloc] init];
// Prepare URL request for Getting the Restaurent at particular coordinate.
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.google.com/maps?q=restaurant&sll=23.00,72.00&radius=2000&output=json"]];
// Perform request and get JSON back as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
// Get JSON as a NSString from NSData response
NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
// parse the JSON response into an object
// Here we're using NSArray since we're parsing an array of JSON status objects
NSArray *statuses = [parser objectWithString:json_string error:nil];
But I am not getting the response. If I use some other API like: http://twitter.com/statuses/public_timeline.json, it will parse properly, but this does not work for Google APIs
I had checked the response string in JSON version. The response which we get is forming a proper tree. It is not showing any error but the array in response which I get is null.
EDIT:
I was looking into and found out that it is not a proper response as you get a file with JSON extension and not a JSON response as is the case with twitter api you are referring. So my advice refer google places api and find a JSON response for a list of restaurants and then try again.
In order to hit there api key you need authenticate with your own api key which you get using this.
once you get your api key you can hit the api like this..
https://maps.googleapis.com/maps/api/place/search/json?location=-33.8670522,151.1957362&radius=500&types=food&name=harbour&sensor=false&key=AddYourOwnKeyHere
this in return will give you a JSON response which you can parse easily (this returns a dictionary) and voila you are done(this api is limited to 100 hits per day only.)... hoping this helps.
So your code will look like this and will work I have checked it...
/// Create new SBJSON parser object
SBJsonParser *parser = [[SBJsonParser alloc] init];
// Prepare URL request to download statuses from Twitter
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"https://maps.googleapis.com/maps/api/place/search/json?location=-33.8670522,151.1957362&radius=5000&types=food&sensor=false&key=yourOwnAPIKey"]];
// Perform request and get JSON back as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
// Get JSON as a NSString from NSData response
NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
// parse the JSON response into an object
// Here we're using NSArray since we're parsing an array of JSON status objects
NSArray *statuses = [parser objectWithString:json_string error:nil];
NSLog(#"statuses:%#", statuses);
use this
NSDictionary *json_dict = [responseString JSONValue];
NSLog(#"%#",json_dict);
then you can fetch any value using its key
The response string from http://www.google.com/maps?q=restaurant&sll=23.00,72.00&radius=2000&output=json is started with while(1);, it is not a valid JSON, remove it should work.
you can use google places api by replacing url to this
https://maps.googleapis.com/maps/api/place/search/json?location=-33.8670522,151.1957362&radius=2000&types=restaurant&name=harbour&sensor=false&key=AddYourOwnKeyHere
Generate your key from Google "https://code.google.com/apis/console/?pli=1#project:305239127220"
Instead of creating a URLRequest you can directly download the contents from the URL into your jsonString like this
NSString * jsonString = [[NSString alloc] initWithContentsOfURL:#"http://www.google.com/maps?q=restaurant&sll=23.00,72.00&radius=2000&output=json" encoding:NSUTF8StringEncoding error:nil];
And convert this jsonString into NSDictionary using JSONParser.
Hope this will solve your issue.....
Try This One
Use SBJson Instead of jsonValue method.
1)import the "SBJSON.h"in .h ViewController.
NSString *jsonString;
//jsonString this is The Coming JSON Response.
SBJSON *parser = [[[SBJSON alloc] init] autorelease];
NSDictionary *jsonResponse = (NSDictionary*)[parser objectWithString:jsonString error:nil];
NSDictionary *responseData = [jsonResponse objectForKey:#"response"]; objectForKey:#"venues"] ;
//Further parsed the Data According to the Keys.
I am getting a use of undeclared identifier error in my json but I am following the example from http://blog.zachwaugh.com/post/309924609/how-to-use-json-in-cocoaobjective-c
how do I fix this? Yes I am very new to objective-c \ ios :) Thanks
I am putting this code in my view based application in my viewcontroller.m file
The issue is with "SBJSON *parser = [[SBJSON alloc] init];"
// Create new SBJSON parser object
SBJSON *parser = [[SBJSON alloc] init];
// Prepare URL request to download statuses from Twitter
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://twitter.com/statuses/public_timeline.json"]];
// Perform request and get JSON back as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
// Get JSON as a NSString from NSData response
NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
// parse the JSON response into an object
// Here we're using NSArray since we're parsing an array of JSON status objects
NSArray *statuses = [parser objectWithString:json_string error:nil];
// Each element in statuses is a single status
// represented as a NSDictionary
for (NSDictionary *status in statuses)
{
// You can retrieve individual values using objectForKey on the status NSDictionary
// This will print the tweet and username to the console
NSLog(#"%# - %#", [status objectForKey:#"text"], [[status objectForKey:#"user"] objectForKey:#"screen_name"]);
}
Try changing the line to SBJsonParser *parser = [[SBJsonParser alloc] init];
Edit:
A way that can be easier is to use the NSString category that SBJSON provides:
NSArray *statuses = (NSArray *)[json_string JSONValue];
I'm using ASIHTTP Request to get a NSString response that I give to a SBJSON parser.
The problem is that inside the NSString response I got some UTF8 encoded character(accent) that I need do decode to make the app works.
How can I decode UTF8 with JSON ?
I call the JSON message like this:
[jsonParser objectWithString:jsonString error:NULL];
Any help would be so appreciated.
Fabrizio
lol....
great !
but for more simplicity i will say.
Create new SBJSON parser object
SBJSON *parser = [[SBJSON alloc] init];
Prepare URL request to download statuses from Twitter
NSURLRequest *request = [NSURLRequest requestWithURL:
[NSURL URLWithString:#"http://twitter.com/statuses/public_timeline.json"]];
Perform request and get JSON back as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request
returningResponse:nil error:nil];
Get JSON as a NSString from NSData response
NSString *json_string = [[NSString alloc]
initWithData:response encoding:NSUTF8StringEncoding];
Parse the JSON response into an object
Here we're using NSArray since we're parsing an array of JSON status objects
NSArray *statuses = [parser objectWithString:json_string error:nil]
And in statuses array you have all the data you need.
I just realized I didn't have to decode, the response is correctly read.
Thanx for reading.
Fabrizio