I'm having troubles sending a post message to my Wep.api application. I already tried my wep.api on google chrome postman application and it works perfectly. I want my code in the xcode to send this json message to my wep.api
Content-Type: application/json; charset=utf-8
{ UserName: "fjkdlajfka", DeviceID: "1568948" , Password: "fkjdalfda"}
But everytime i send the message, I keep getting null on the parameters. this is my xcode message:
NSString *JsonMsg = [NSString stringWithFormat:#"{UserName: \"%#\",DeviceID: \"%#\",Password: \"%#\"}",
Username.text,#"123456789",Password.text];
NSURL *url = [NSURL URLWithString: #"http://192.168.xxx.xxxx:53913/api/LogIn"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:#"%d", [JsonMsg length]];
[theRequest setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[theRequest setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[theRequest setValue:msgLength forHTTPHeaderField:#"Content-Length"];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody:[JsonMsg dataUsingEncoding:NSUTF16BigEndianStringEncoding allowLossyConversion:YES]];
conn = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if ( conn ) {
webData = [NSMutableData data];
}
else {
NSLog(#"theConnection is NULL");
}
Does anyone know whats the error here?
Your JSON is invalid , you are missing quotes
NSString *JsonMsg = [NSString stringWithFormat:#"{"UserName": \"%#\",
"DeviceID": \"%#\",
"Password": \"%#\"}",
Username.text,#"123456789",Password.text];
Related
Using Postman on my Mac I have confirmed GET/POST works to my endpoint. On my iPad I am trying to do the same thing but only GET connects and returns data (just for
testing).
In Postman I have key of devices and value of [{"name":"1","values":[121,182,243]}]
From Postman I can Send and the physical object responds and the server returns an array of all devices and nothing else (which I do not require but that is how it goes). Postman does have x-www-form-urlencoded under Body. This works as expected from Postman.
From my iPad the following code always returns an error 400 which I think means I am providing something the server is not expecting.
+(void)makeRequest {
NSError *error = nil;
storedURL = [[NSUserDefaults standardUserDefaults] objectForKey:#"eb-ipaddress-saved"];
NSString *urlstring = [NSString stringWithFormat:#"http://%#",storedURL];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlstring] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
NSString *jsonPostBody = #"{\"devices\":[{\"name\":\"1\",\"values\":[121,182,243]}]}";
NSData *postData = [jsonPostBody dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO];
NSString *postLength = [NSString stringWithFormat:#"%lu",(unsigned long)[postData length]];
[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];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
if(httpResponse.statusCode == 200)
{
NSError *parseError = nil;
NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError];
NSLog(#"The response is - %#",responseDictionary);
NSInteger success = [[responseDictionary objectForKey:#"success"] integerValue];
if(success == 1)
{
NSLog(#"SUCCESS");
}
else
{
NSLog(#"FAILURE");
}
}
else
{
NSLog(#"Error");
}
}];
[dataTask resume];
}
My 4 logs from above (removed for clarity) return:
urlstring http://192.168.90.55:3000/dmx/set
jsonPostBody {"devices":[{"name":"1","values":[121,182,243]}]}
httpResponse 400
Error
I will eventually switch to variables in my POST when in production.
Thank you
Thanks to Larme's answer I used the code from Postman and that worked.
+(void)makeRequest
{
dispatch_semaphore_t sema = dispatch_semaphore_create(0);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:#"http://192.168.90.55:3000/dmx/set"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
NSDictionary *headers = #{
#"Content-Type": #"application/x-www-form-urlencoded"
};
[request setAllHTTPHeaderFields:headers];
NSMutableData *postData = [[NSMutableData alloc] initWithData:[#"devices=[{\"name\":\"1\",\"values\":[121,182,243]}]" dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:postData];
[request setHTTPMethod:#"POST"];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error) {
NSLog(#"%#", error);
dispatch_semaphore_signal(sema);
} else {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSError *parseError = nil;
NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError];
NSLog(#"%#",responseDictionary);
dispatch_semaphore_signal(sema);
}
}];
[dataTask resume];
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
}
How to I do a HTTP GET request of some data in JSON format, from one API endpoint and POST it back to another API endpoint.
-(void)GetRequest{
//Init the NSURLSession with a configuration
NSURLSessionConfiguration *defaultConfigObject = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration: defaultConfigObject delegate: nil delegateQueue: [NSOperationQueue mainQueue]];
//Create an URLRequest
NSURL *url = [NSURL URLWithString:#"Your URL"];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
[urlRequest setHTTPMethod:#"GET"];
[urlRequest setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
//Create task
NSURLSessionDataTask *dataTask = [defaultSession dataTaskWithRequest:urlRequest completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
//Handle your response here
// NSLog(#"resultsDictionary is %#",response);
}];
[dataTask resume];
}
Hi in my application i have stored data in my local database sqlite3. Now i have to upload the data form local database sqlite3 to online server. For retrieving the data i have used the dataDictionary to get all the data form the sqlite3 database. And i have converted the data in json format now the problem is how to pass this json data into my online server.
NSMutableArray *array = [[NSMutableArray alloc] init];
[self openDB];
NSString *sql = [NSString stringWithFormat:#"SELECT * FROM reg"];
const char *query_stmt = [sql UTF8String];
sqlite3_stmt *statement;
if (sqlite3_prepare_v2(db, query_stmt, -1, &statement, nil)==SQLITE_OK) {
while (sqlite3_step(statement)==SQLITE_ROW) {
NSMutableDictionary *_dataDictionary=[[NSMutableDictionary alloc] init];
NSString *date = [[NSString alloc] initWithUTF8String:(const char *) sqlite3_column_text(statement, 0)];
field1Str= date;
NSString *customer = [[NSString alloc] initWithUTF8String:(const char *) sqlite3_column_text(statement, 1)];
field2Str = customer;
NSString *code1 = [[NSString alloc] initWithUTF8String:(const char *) sqlite3_column_text(statement, 2)];
field3Str = code1;
NSString *code2 = [[NSString alloc] initWithUTF8String:(const char *) sqlite3_column_text(statement,3)];
field4Str = code2;
[_dataDictionary setObject:[NSString stringWithFormat:#"%#",field1Str] forKey:#"Kname"];
[_dataDictionary setObject:[NSString stringWithFormat:#"%#",field2Str] forKey:#"kphone"];
[_dataDictionary setObject:[NSString stringWithFormat:#"%#",field3Str] forKey:#"karea"];
[_dataDictionary setObject:[NSString stringWithFormat:#"%#",field4Str] forKey:#"kcity"];
[array addObject:_dataDictionary];
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:array options:kNilOptions error:nil];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
NSURL *someURLSetBefore =[NSURL URLWithString:#"my url for inserting the data into my online server"];
[request setURL:someURLSetBefore];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setHTTPBody:jsonData];
// print json:
NSLog(#"JSON summary: %#", [[NSString alloc] initWithData:jsonData
encoding:NSUTF8StringEncoding]);
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection start];
}
}
I have used this above code to pass my sqlite3 database data to my server. I have print the jsondata in log its coming as a json format data only. Please tell me how to push this data to my online server where I'm missing in the code i have stuck here for very long time its eating my head its not working please help me out.
Thanks.
I suggest that you use some proper framework for HTTP communication. Using Apple's low-level API can be quite tricky.
This is a great framework: https://github.com/AFNetworking/AFNetworking
I am trying to query my Neo4j database, using the REST API.
I have this working so far without using the Cypher query language to retrieve data,
however, now I need to get nodes which are sorted by 'newest' i.e. unix timestamp DESC.
I have tried to add the query within the HTTP body of the NSMutableURLRequest but I am just getting the HTTP error 405.
Here is my code:
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"%#node/%i", EventsManagerDataURL, creatorID]];
NSLog(#"Connecting to URL: %#", url);
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
NSString *jsonMap = #"{'query' : 'start x = node(4,6,7) return x order by x.datestart,'params' : {}}";
NSData *jsonData = [jsonMap dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setValue:[NSString stringWithFormat:#"%d", jsonData.length] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:jsonData];
[NSURLConnection sendAsynchronousRequest:request queue:[[NSOperationQueue alloc] init] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error){
if (data){
NSLog(#"%s. Data: %#", _cmd, [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);
} else {
NSLog(#"Error: %#", error.localizedDescription);
}
}];
You're missing a single quote here:
NSString *jsonMap = #"{'query' : 'start x = node(4,6,7) return x order by x.datestart***'***,'params' : {}}";
And actually, it needs to have double quotes:
NSString *jsonMap = #"{\"query\" : \"start x = node(4,6,7) return x order by x.datestart\", \"params\" : {}}";
Test with cURL:
curl -H Accept:application/json -H Content-Type:application/json -X POST -d '{"query" : "start x = node(4,6,7) return x order by x.datestart", "params" : {}}' localhost:7474/db/data/cypher
There is a JSON call which when i call via curl like below:
curl -H
"Content-Type:application/json" -H
"Accept:application/json" -d
"{\"checkin\":{\"message\":\"this is a
test\"}}"
http://gentle-rain-302.heroku.com/checkins.json
I get this result:
{"checkin":{"created_at":"2011-01-29T13:52:49Z","id":3,"message":"this
is a
test","updated_at":"2011-01-29T13:52:49Z"}}
But when i call in my iPhone App like below:
- (void)doCheckIn:(NSString *)Str
{
NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *finalPath = [path stringByAppendingPathComponent:#"inStore-settings.plist"];
NSDictionary *plistDictionary = [[NSDictionary dictionaryWithContentsOfFile:finalPath] retain];
NSString *appURL = [plistDictionary objectForKey:#"apiurl"];
appURL = [appURL stringByAppendingString:#"checkins.json"];
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:appURL]];
[request setPostValue:#"{\"checkin\":{\"message\":\"test\"}}" forKey:#"message"];
[request startSynchronous];
NSError *error = [request error];
if (!error) {
NSString *response = [request responseString];
NSLog(response);
}
}
I get a result saying :
"The change you wanted was rejected
(422)"
Any help is highly appreciated.
Looking at your curl command, I don't think you want to be doing http multipart post, which the ASIFormDataRequest is specifically set to handle. You just want to set the post body of a request to your json string. Try using the normal ASIHTTPRequest class and adding data to the post body via a method like appendPostData: or the like. This should build the appropriate HTTP request for you.
This piece of code worked:
- (void)doCheckIn:(NSString *)Str
{
NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *finalPath = [path stringByAppendingPathComponent:#"inStore-settings.plist"];
NSDictionary *plistDictionary = [[NSDictionary dictionaryWithContentsOfFile:finalPath] retain];
NSString *appURL = [plistDictionary objectForKey:#"apiurl"];
appURL = [appURL stringByAppendingString:#"checkins.json"];
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:appURL]];
[request appendPostData:[#"{\"checkin\":{\"message\":\"test by Zuzar\"}}" dataUsingEncoding:NSUTF8StringEncoding]];
[request addRequestHeader:#"Content-Type" value:#"application/json"];
[request addRequestHeader:#"Accept" value:#"application/json"];
[request setRequestMethod:#"POST"];
[request startSynchronous];
NSError *error = [request error];
if (!error) {
NSString *response = [request responseString];
NSLog(#"%#", response);
}
}
Did you try setting the Accept and Content-Type headers in your ASIFormDataRequest instance?