network.download on ios

Getting Started Newbie Questions
#1

Hi,

I have a json file on my web that I use for ads in my app. 

Json file is downloaded with the code below:

 function networkListener( event ) if ( event.isError ) then print( "Network error - download failed" ) elseif ( event.phase == "began" ) then print( "Progress Phase: began" ) elseif ( event.phase == "ended" ) then print( "Done" ) json = require("json") src = "toddler.json" path = system.pathForFile(src, system.DocumentsDirectory) saveData = io.open(path, "r") Data = saveData:read("\*a") t = json.decode(Data) io.close(saveData) end end local params = {headers = { ["Accept-Encoding"] = "" }} params.progress = true network.download( "http://my-domain.com/app/toddler.json", "GET", networkListener, params, "toddler.json", system.DocumentsDirectory )

Now I have a problem with download on iOS. On android everything works perfectly: json file is downloaded, ads are showing and working,

even when I update json file on the web, the updated version is downloaded (old one in the system.DocumentsDirectory is deleted before that) and working as it should - but only on android.

On iOS it downloads the json file but shows old content of the file, which is totally strange because old file is deleted :confused:

Any ideas what I’m doing wrong?

Mladen

#2

I’ve had this before, somehow it retrieves an old cached version (not sure it mattered which OS I used though).  

Try adding a random parameter to the end of the url, that usually forces it to treat the request as a completely new request:

local rand = math.random(1, 10000) network.download( "http://my-domain.com/app/toddler.json?"..rand, "GET", networkListener, params, "toddler.json", system.DocumentsDirectory )
#3

Thank you Alan,

it works now :slight_smile:

#4

Glad to hear that worked. For the record, I add a random parameter like this to all my network.downloads just to be sure that nothing gets cached, so it may be wise for you to do the same.

#5

I’ve had this before, somehow it retrieves an old cached version (not sure it mattered which OS I used though).  

Try adding a random parameter to the end of the url, that usually forces it to treat the request as a completely new request:

local rand = math.random(1, 10000) network.download( "http://my-domain.com/app/toddler.json?"..rand, "GET", networkListener, params, "toddler.json", system.DocumentsDirectory )
#6

Thank you Alan,

it works now :slight_smile:

#7

Glad to hear that worked. For the record, I add a random parameter like this to all my network.downloads just to be sure that nothing gets cached, so it may be wise for you to do the same.