NSURL oddity

Scripting Forums AppleScriptObjC and Xcode
#1

So I’m looking to move an app away from using do shell script for curl operations.

I’m hitting something that seems odd, wherein when I create a URL with NSURL’s URLWithString, what I’m getting back is the result of the URL on the website, not a URL object?

This isn’t bad in and of itself for GET operations, but if it’s a URL for a post, where there’s nothing returned when "running’ the URL, then I get missing value.

I think I’m missing something?

#2

You probably want to be using NSURLSession’s or NSURLConnection’s methods and related classes.

#3

Of the two, NSURLConnection is deprecated, but I suspect it will be supported for a while. And it’s easier to use from AppleScript, partly because it has a synchronous option. Simpler stuff can be done like this:

use AppleScript version "2.4"
use scripting additions
use framework "Foundation"

set theNSURL to current application's |NSURL|'s URLWithString:theString
set theNSURLRequest to current application's NSURLRequest's alloc()'s initWithURL:theNSURL cachePolicy:(current application's NSURLRequestReloadIgnoringCacheData) timeoutInterval:5.0
set {theNSURLConnection, theResponse, theError} to current application's NSURLConnection's sendSynchronousRequest:theNSURLRequest returningResponse:(reference) |error|:(reference)
#4

Okay, so next question, how do you set the HTTP Method (get/post) etc. I’ve tried a few options, none of them seem to be working. (lots of unrecogonized selectors)

#5

You’ll find quite a few examples here:

http://piyocast.com/as/

The site is in Japanese, but obviously the code isn’t, and the site is searchable.

#6

I’ve wrote various REST API calling code. NSURLSession is not faster than NSURLConnection.
NSURLSession sample is here.

–Call Postmark’s spam detection API
http://piyocast.com/as/archives/3600

And other samples are …
http://piyocast.com/as/?s=NSURLSession

#7

Shane could you explain the cache policy option you choose?

Thanks

#8

Here’s some
Examples pasted from Piyumo site


  aRequest’s setHTTPMethod:"POST"
  aRequest’s setCachePolicy:(current application’s NSURLRequestReloadIgnoringLocalCacheData)
  aRequest’s setHTTPShouldHandleCookies:false
  aRequest’s setTimeoutInterval:timeoutSec
  –aRequest’s setValue:"gzip" forHTTPHeaderField:"Content-Encoding"–Does not work with this API & Method
  aRequest’s setValue:"application/json" forHTTPHeaderField:"Accept"
  aRequest’s setValue:"application/json; charset=UTF-8" forHTTPHeaderField:"Content-Type"
#9

It’s pretty much what its name says: force reload ignoring anything cached.