Randomly and false-zero-Entitlements returned from purchaseProduct:withCompletion

I do appreciate the generous offer, I have one file that has all your API, so your world is contained.  Let us do that, I am ready…

That’s perfect, I think @cody is going to dig in some more. 

@imougy I’m going through all the code, logs and comments to get a better understanding, and would love to set up a live coding session so we can finally figure this out. 

Before that, just a question: are you using any other SDK / plugin in your app, or otherwise do you have any date extensions in your code? 

I want to set up a testing up with as similar a setup as you have as possible to see if I can reproduce locally, which would be immensely helpful

@taquitos ,

After taking a look at our code, we noticed we are using the Datadog SDK, which has a similar extension on ISO8601Formatter signature as the RevenueCat SDK (both of them have the class conform to a protocol of the same name)  (https://github.com/DataDog/dd-sdk-ios/blob/9cdb8fe7615949554e8a6af2ddbe2857050fed35/Sources/Datadog/Core/Utils/DateFormatting.swift)

Do you think this could cause any issues?

Oh wow! Yeah, maybe that could do it. We recently rewrote our iso8601DateFormatter to use the newer `ISO8601DateFormatter`, but haven’t released a beta with it include: https://github.com/RevenueCat/purchases-ios/blob/main/Purchases/FoundationExtensions/DateFormatter%2BExtensions.swift

We’re still finishing up the last bit of StoreKit2 additions and then we’ll release another Beta. Are you able to test out this theory building from `main`?

@Andy sounds good tomorrow anytime.  I am PST time. Thank you so much.

@taquitos Another user error, he is a subscriber but can’t see anything.

Good luck!

I was able to chase down the exact response that was sent when your customer encountered: 

RevenueCat LastError: Error Domain=RevenueCat.ErrorCode Code=12 "Received malformed response from the backend." UserInfo={generated_by=<snip> getSubscriberData(appUserID:completion:), NSUnderlyingError=0x2823f5f50 {Error Domain=RevenueCat.UnexpectedBackendResponseSubErrorCode Code=8 "(null)" UserInfo={NSUnderlyingError=0x280c84c80 {Error Domain=RevenueCat.CustomerInfoError Code=1 "(null)"}

The json is ok and I can manually instantiate the objects with the exact response. I met with @Andy to discuss this and we walked through the code again. The only places where we could generate this error is if:
“subscriberData["first_seen"]” is empty, or the date format is incorrect.
OR:
“subscriberData["original_app_user_id"]” is nil.
Both of these conditions were ok in the response!
So that leaves us with some questions: what other sdks do you current use? Do you have any of your own Date extensions that you’re using? The thought is that maybe you’re using an SDK that could: 
1) swizzle some of the foundation date parsing stuff (we’ve seen it)
2) have the same named Date extension so runtime resolution of the extension is non-determinate.

We really appreciate you tracking this stuff down with us. At this point, I’ve added yet more error handling to a new pr, but I think something outside our control is going on since the exact json responses that are causing issues for you are not causing issues in my testing. If I could repro this, it would be so much easier 😔

 

@Winston Du in my app, I myself get affected from time to time, I get empty customerInfo and need to restore purchases.  I have US local.  The randomness of the issue is a puzzle to me, unless some dates are parsed and others are not!

Anyway, I am eagerly awaiting any fix to test.

@Winston Du  Thanks for the follow up and I hope I can report good news when I get this change. @taquitos please keep me in touch so I can get this change.