objective c - How to send POST and GET request? -

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i want send json url (post , get).

nsmutabledictionary *jsondict = [[nsmutabledictionary alloc] init]; [jsondict setvalue:"myvalue" forkey:"mykey"];  nsdata *jsondata = [nsjsonserialization datawithjsonobject:self options:kniloptions error:nil];

my current request code isn't working.

nsmutableurlrequest *requestdata = [[nsmutableurlrequest alloc] init];  [requestdata seturl:[nsurl urlwithstring:@"http://fake.url/"];];  [requestdata sethttpmethod:@"post"]; [requestdata setvalue:postlength forhttpheaderfield:@"content-length"]; [requestdata setvalue:@"application/json" forhttpheaderfield:@"content-type"]; [requestdata setvalue:@"application/json" forhttpheaderfield:@"accept"]; [requestdata sethttpbody:postdata];

using asihttprequest not liable answer.

sending post , get requests in ios quite easy; , there's no need additional framework.

post request:

we begin creating our post's body (ergo. we'd send) nsstring, , converting nsdata.

nsstring *post = [nsstring stringwithformat:@"test=message&this=isnotreal"]; nsdata *postdata = [post datausingencoding:nsasciistringencoding allowlossyconversion:yes];

next up, read postdata's length, can pass along in request.

nsstring *postlength = [nsstring stringwithformat:@"%d", [postdata length]];

now have we'd post, can create nsmutableurlrequest, , include our postdata.

nsmutableurlrequest *request = [[nsmutableurlrequest alloc] init]; [request seturl:[nsurl urlwithstring:@"http://yoururl.com/fakeurl"]]; [request sethttpmethod:@"post"]; [request setvalue:postlength forhttpheaderfield:@"content-length"]; [request sethttpbody:postdata]; 

let post = "test=message&this=isnotreal" let postdata = post.data(using: string.encoding.ascii, allowlossyconversion: true)  let postlength = string(postdata!.count)  var request = urlrequest(url: url(string: "http://yoururl.com/fakeurl/parameters")!) request.httpmethod = "post" request.addvalue(postlength, forhttpheaderfield: "content-length") request.httpbody = postdata;

and finally, can send our request, , read reply creating new nsurlsession:

nsurlsession *session = [nsurlsession sessionwithconfiguration:[nsurlsessionconfiguration defaultsessionconfiguration]]; [[session datataskwithrequest:request completionhandler:^(nsdata *data, nsurlresponse *response, nserror *error) {     nsstring *requestreply = [[nsstring alloc] initwithdata:data encoding:nsasciistringencoding];     nslog(@"request reply: %@", requestreply); }] resume]; 

let session = urlsession(configuration: .default) session.datatask(with: request) {data, response, error in     let requestreply = nsstring(data: data!, encoding: string.encoding.ascii.rawvalue)     print("request reply: \(requestreply!)") }.resume()

get request:

with get request it's same thing, without httpbody , content-length.

nsmutableurlrequest *request = [[nsmutableurlrequest alloc] init]; [request seturl:[nsurl urlwithstring:@"http://yoururl.com/fakeurl/parameters"]]; [request sethttpmethod:@"get"];  nsurlsession *session = [nsurlsession sessionwithconfiguration:[nsurlsessionconfiguration defaultsessionconfiguration]]; [[session datataskwithrequest:request completionhandler:^(nsdata *data, nsurlresponse *response, nserror *error) {     nsstring *requestreply = [[nsstring alloc] initwithdata:data encoding:nsasciistringencoding];     nslog(@"request reply: %@", requestreply); }] resume]; 

var request = urlrequest(url: url(string: "http://yoururl.com/fakeurl/parameters")!) request.httpmethod = "get"  let session = urlsession(configuration: .default) session.datatask(with: request) {data, response, error in     let requestreply = nsstring(data: data!, encoding: string.encoding.ascii.rawvalue)     print("request reply: \(requestreply!)") }.resume()

on side note, can add content-type (and other data) adding following our nsmutableurlrequest. might required server when requesting, e.g, .

[request setvalue:@"application/json" forhttpheaderfield:@"content-type"]; [request setvalue:@"application/json" forhttpheaderfield:@"accept"];

response code can read using [(nshttpurlresponse*)response statuscode].

request.addvalue("application/json", forhttpheaderfield: "content-type") request.addvalue("application/json", forhttpheaderfield: "accept")

update: sendsynchronousrequest deprecated , (10.11) , out. 

nsurlresponse *requestresponse; nsdata *requesthandler = [nsurlconnection sendsynchronousrequest:request returningresponse:&requestresponse error:nil]; nsstring *requestreply = [[nsstring alloc] initwithbytes:[requesthandler bytes] length:[requesthandler length] encoding:nsasciistringencoding]; nslog(@"requestreply: %@", requestreply);


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