NSInputStream not opening stream/ How to post data when setting up stream - objective-c

Question

What I am trying to do: I have a url request (post) where I send some information to a api server which then starts streaming data in bytes to me.
1) How do I post data when trying to set up a stream as right now I am just using a url, can I incorporate a NSURLRequest some how?
2) Why isnt my stream even opening (streamStatus returns 0) and thus - (void)stream:(NSStream *)stream handleEvent:(NSStreamEvent)eventCode never being called? , this is my best attempt and for the most part following this Guide
- (void)setUpStreamFromURL:(NSURL *)path {
// iStream is NSInputStream instance variable
iStream = [[NSInputStream alloc] initWithURL:path];
[iStream setDelegate:self];
[iStream scheduleInRunLoop:[NSRunLoop currentRunLoop]
forMode:NSDefaultRunLoopMode];
[iStream open];
NSLog(#"Stream Open: %lu",[iStream streamStatus]); //return 0
}
- (void)stream:(NSStream *)stream handleEvent:(NSStreamEvent)eventCode {
NSLog(#"Streaming");
switch(eventCode) {
case NSStreamEventHasBytesAvailable:
{
if(!_data) {
_data = [[NSMutableData data] init];
}
uint8_t buf[1024];
unsigned int len = 0;
len = [(NSInputStream *)stream read:buf maxLength:1024];
if(len) {
[_data appendBytes:(const void *)buf length:len];
NSLog(#"DATA BEING SENT : %#", _data);
// bytesRead is an instance variable of type NSNumber.
// [bytesRead setIntValue:[bytesRead intValue]+len]; //getting error that setInt value is not part of NSNumber, and thats true so not sure what to do about it, but this isn't the issue.
} else {
NSLog(#"no buffer!");
}
break;
}
case NSStreamEventEndEncountered:
{
[stream close];
[stream removeFromRunLoop:[NSRunLoop currentRunLoop]
forMode:NSDefaultRunLoopMode];
stream = nil; // stream is ivar, so reinit it
break;
}
// continued ...
}
}
also incase it helps, my header file:
#import <Foundation/Foundation.h>
#import "Login.h"
#interface Stream : NSStream <NSStreamDelegate> {
NSMutableArray *searchIdList;
NSInputStream *iStream;
NSNumber *bytesRead;
}
- (void)stream:(NSStream *)stream handleEvent:(NSStreamEvent)eventCode ;
-(id)initWithLoginObject:(Login *)log;
#property NSMutableData *data;
#end

Answer 1

You can't use NSURLRequest in Stream.
To create a request you can use this.
request = CFHTTPMessageCreateRequest(kCFAllocatorDefault, CFSTR("POST"),(CFURLRef) url, kCFHTTPVersion1_1);
CFHTTPMessageSetHeaderFieldValue(request, CFSTR("User-Agent"), CFSTR("MSControl-US"));
CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Content-Type"), CFSTR("application/json"));
CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Connection"), CFSTR("Keep-Alive"));
After that you can create the stream using
readStream = CFReadStreamCreateForHTTPRequest(kCFAllocatorDefault, request)
or if you already have an opened stream you can serialize your request With :
NSData *data = (NSData *)CFHTTPMessageCopySerializedMessage(request);
and send with This:
length = [data length];
CFWriteStreamWrite((CFWriteStreamRef)outStream,data,lenght);
Hope this help