How to upload data from iphone app to mysql data base - iphone

Question

I have a EMR app and i want that i may send the data which i have collected like images and voice to server. in data base so how can i do this . Is there any way to send these data to server through post method.

Answer 1

Here is an example of a HTTP Post request
// define your form fields here:
NSString *content = #"field1=42&field2=Hello";
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"http://www.example.com/form.php"]];
[urlRequest setHTTPMethod:#"POST"];
[urlRequest setHTTPBody:[content dataUsingEncoding:NSISOLatin1StringEncoding]];
// generates an autoreleased NSURLConnection
[NSURLConnection connectionWithRequest:request delegate:self];
Might want to reference http://developer.apple.com/library/ios/#documentation/cocoa/reference/foundation/Classes/NSURLConnection_Class/Reference/Reference.html
This tutorial is also helpful http://www.raywenderlich.com/2965/how-to-write-an-ios-app-that-uses-a-web-service

Answer 2

In that case, you can do follow two ways:
1. if you strictly like to using POST (i like), u can using cocoahttpserver project:
https://github.com/robbiehanson/CocoaHTTPServer
In iphone app, you can do this code to send POST request:
-(NSDictionary *) getJSONAnswerForFunctionVersionTwo:(NSString *)function
withJSONRequest:(NSMutableDictionary *)request;
{
[self updateUIwithMessage:#"server download is started" withObjectID:nil withLatestMessage:NO error:NO];
NSDictionary *finalResultAlloc = [[NSMutableDictionary alloc] init];
#autoreleasepool {
NSError *error = nil;
NSString *jsonStringForReturn = [request JSONStringWithOptions:JKSerializeOptionNone serializeUnsupportedClassesUsingBlock:nil error:&error];
if (error) NSLog(#"CLIENT CONTROLLER: json decoding error:%# in function:%#",[error localizedDescription],function);
NSData *bodyData = [jsonStringForReturn dataUsingEncoding:NSUTF8StringEncoding];
NSData *dataForBody = [[[NSData alloc] initWithData:bodyData] autorelease];
//NSLog(#"CLIENT CONTROLLER: string lenght is:%# bytes",[NSNumber numberWithUnsignedInteger:[dataForBody length]]);
NSString *functionString = [NSString stringWithFormat:#"/%#",function];
NSURL *urlForRequest = [NSURL URLWithString:functionString relativeToURL:mainServer];
NSMutableURLRequest *requestToServer = [NSMutableURLRequest requestWithURL:urlForRequest];
[requestToServer setHTTPMethod:#"POST"];
[requestToServer setHTTPBody:dataForBody];
[requestToServer setTimeoutInterval:600];
[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[urlForRequest host]];
NSData *receivedResult = [NSURLConnection sendSynchronousRequest:requestToServer returningResponse:nil error:&error];
if (error) {
NSLog(#"CLIENT CONTROLLER: getJSON answer error download:%#",[error localizedDescription]);
[self updateUIwithMessage:[error localizedDescription] withObjectID:nil withLatestMessage:YES error:NO];
[finalResultAlloc release];
return nil;
}
NSString *answer = [[NSString alloc] initWithData:receivedResult encoding:NSUTF8StringEncoding];
JSONDecoder *jkitDecoder = [JSONDecoder decoder];
NSDictionary *finalResult = [jkitDecoder objectWithUTF8String:(const unsigned char *)[answer UTF8String] length:[answer length] error:&error];
[finalResultAlloc setValuesForKeysWithDictionary:finalResult];
[answer release];
[self updateUIwithMessage:#"server download is finished" withObjectID:nil withLatestMessage:NO error:NO];
if (error) NSLog(#"CLIENT CONTROLLER: getJSON answer failed to decode answer with error:%#",[error localizedDescription]);
}
NSDictionary *finalResultToReturn = [NSDictionary dictionaryWithDictionary:finalResultAlloc];
[finalResultAlloc release];
return finalResultToReturn;
}
Don't forget to pack attributes with images to base64.
Finally, if u don't like to keep data, which u send in you mac app, u can send to u database using any database C api. I recommend to using core data to save receive data.