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iOS

Posted by Edouard Gabaudan
Edouard Gabaudan
4,104 Points

Json data slow when server slow

Hi everyone,

I have started the courses and I am currently 'pausing' it to try and practise with my own project.

In this project, I am getting datas from a json file. I used the same code I learned in the Blogpost tutorial:

''' [super viewDidLoad];

NSURL *nodeURL = [NSURL URLWithString:@"http://xxxxxxx/content"];

NSData *jsonData = [NSData dataWithContentsOfURL:nodeURL];
NSError *error = nil;

NSDictionary *nodeDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];

self.nodesAll = [NSMutableArray array];

for ( NSDictionary *nDictionary in nodeDictionary) {
    Nodes *nodes = [Nodes nodeWithNid:[nDictionary objectForKey:@"nid"]];
    nodes.title = [nDictionary objectForKey:@"node_title"];
    nodes.email = [nDictionary objectForKey:@"email"];
    nodes.image = [nDictionary objectForKey:@"Picture"];
    nodes.price = [nDictionary objectForKey:@"price"];

    [self.nodesAll addObject:nodes];

}

'''

I am doing several operations with this datas, everything works, except that it is slow. The json file is located on a website hosted on my computer, if I use the local IP address of my computer, it is really fast, no problem, but if I use my public IP, it is slow to do any operations. I don't really understand why, I thought that this code was downloading everything from the json file and that when it was downloaded, we were not suppose to reload any data?

Thanks a lot for your help,

Regards,

Edouard