IAP with google : state on "verificationFailed"

[Yvan]

Hello

I try to test In App Purchase with google but it never called the “purchase” state.
When I call the purchase function the state is always “verificationFailed” but not “purchase” ?
What to do to solve the problem ?

Thank you.

local function storeListener(event)

    if event.name == 'init' then
        if not ( event.transaction.isError ) then

        else  -- Unsuccessful initialization; output error details
            print( event.transaction.errorType )
            print( event.transaction.errorString )
        end
    
    elseif ( event.name == "storeTransaction" ) then
        if not ( event.transaction.state == "failed" ) then  -- Successful transaction
            local productID = transaction.productIdentifier

        else
            print( event.transaction.errorType )
            print( event.transaction.errorString )
        end
    end

        store.finishTransaction(event.transaction)
end

local productLists = {
  ['100diamonds'] = "com.google.bhb.iap.100diamonds",
  ['800diamonds'] = "com.google.bhb.iap.800diamonds",
  ['1500diamonds'] = "com.google.bhb.iap.1500diamonds",
}

local function purchase(product)
  store.purchase( productLists[product.name] )
end

purchase("100diamonds")

[kakula]

considering that you initiated the store and loaded the products then you should make the purchase by passing productIdentifier with the purchase method

local IAPList={}
local realIAPList={}
local IAPListT={}

local function onLoadProducts( event )
  for i = 1,#event.products do
      realIAPList[i]=event.products[i].productIdentifier
      IAPListT[i]=event.products[i].title.." "..event.products[i].localizedPrice
  end
  -- print( "Valid products:", #event.products )
  -- print( "Invalid products:", #event.invalidProducts )
end
local function transactionListenerAndroid( event )
    if ( event.name == "init" ) then
        if not ( event.transaction.isError ) then
            if (platformName=="android" or platformName=="iphone os" or platformName=="mac os x" or platformName=="tvos") and store.isActive then
              if store.canLoadProducts  then
                store.loadProducts( IAPList, onLoadProducts )
              end
            end
         else  -- Unsuccessful initialization; output error details
            native.showAlert( "Info", tostring(event.transaction.errorType) .. "\n"..event.transaction.errorString ,{"Ok"} )
        end 
    -- Store transaction event
    elseif ( event.name == "storeTransaction" ) then
        if event.transaction.state == "purchased" then  -- Successful transaction
          store.consumePurchase( currItem)
        elseif event.transaction.state == "restored" then  -- Successful transaction
          store.consumePurchase( currItem)
        else  -- Unsuccessful transaction; output error details
            native.showAlert( "Info", "Unable to complete purchase" ,{"Ok"} )
        end
    end
end
local function transactionListeneriOS( event )
    if event.transaction.state == "purchased" then  -- Successful transaction
        -- print( json.prettify( event ) )
        -- print( "event.transaction: " .. json.prettify( event.transaction ) )
    elseif event.transaction.state == "restored" then  -- Successful transaction
      store.consumePurchase( currItem)
    else  -- Unsuccessful transaction; output error details
        native.showAlert( "Info", "Unable to complete purchase" ,{"Ok"} )
    end
    -- Tell the store that the transaction is finished
    store.finishTransaction( event.transaction )
end
local function loadiOSProducts()
  if store.canLoadProducts then
    store.loadProducts( IAPList, onLoadProducts )
  end
end
-- Initialize IAP
if platformName=="android" then
  store.init( transactionListenerAndroid )
elseif platformName=="iphone os" or platformName=="mac os x" or platformName=="tvos" then
  store.init( transactionListeneriOS )
  timer.performWithDelay( 3000, loadiOSProducts )
end

--somewhere in your code
store.purchase( realIAPList[ID_Of_Product] )

[Yvan]

Hello thanks for the response but I have try it with google iap billing but it doesn’t work.
Is the function store.loadProducts mandatory to call on the init event ?
Thank you.

[kakula]

I’m not sure if its mandatory, but it will at least reveal if It is working or not.

Years ago I didn’t have to use it, but following the new sample code it is there

[Yvan]

Hello
loadProduct is only usefull to display the list of products.
I have test with and without loadProduct and on a smartphone where the main google account of the device and the google account of the play store are the same.
The state after clicking on buying test iap is always “verificationFailed”.

I try to take a picture of that :

I also display on the screen the value of the event.transaction.

Thanks.
Sincerely,
Yvan.

[Yvan]

Please help I am blocked.

[Yvan]

Ok I find the solution : The app needed the licence key inside the config file for the verification of the purchases (otherwise it is “verificationFailed”).
The licence key can be founded inside the google game account on the section “Monetize > Configuration of monetization > Licence”

application = 
{
    license =
    {
        google =
        {
            key = "MIIBIjANBgkqhkiG9 (...) 5VlN1OEnZOeHMQIDAQAB",
        },
    },
}

You can see the part of the code at the end of that page :

Solar2D Documentation — Plugins | Google IAP