InAppPurchases expo

joaocosta9 · May 12, 2020, 5:10pm

Hello! I’m building an app that uses in app purchases and I also have a server-side. I would like to validate the purchases in my backend, but I don’t see how can I get the receipt in the documentation. Is this possible using expo InAppPurchases ? Thanks!

bidetaggle · May 28, 2020, 11:26am

This might interest you for the play store Integrate the Google Play Billing Library into your app | Google Play's billing system | Android Developers

spitlab · July 12, 2020, 1:47pm

How about with the App Store?

oscaryuen · July 14, 2020, 3:01pm

Basically you can do it in two ways:

Schedule a job that getting the latest receipt from existing receipt.
Server notification from Apple(but it has so many strange things e.g. the receipt is iOS6 instead of iOS 7 one)

bidetaggle · July 20, 2020, 2:21am

I give up with it:

github.com/expo/expo

[docs] InAppPurchases doesn't seem to work as explained

opened 09:13AM - 29 May 20 UTC

closed 11:07PM - 19 Jul 20 UTC

cromatikap

docs

Hello, I'm working on android (I plan to make also an iOS version) and I real…ly have a hard time understanding how to use InAppPurchases. Using the following code from the doc: ``` // Set purchase listener setPurchaseListener(({ responseCode, results, errorCode }) => { // Purchase was successful if (responseCode === IAPResponseCode.OK) { results.forEach(purchase => { if (!purchase.acknowledged) { console.log(`Successfully purchased ${purchase.productId}`); // Process transaction here and unlock content... // Then when you're done finishTransactionAsync(purchase, true); // <- I want consumable items } }); } // Else find out what went wrong if (responseCode === IAPResponseCode.USER_CANCELED) { console.log('User canceled the transaction'); } else if (responseCode === IAPResponseCode.DEFERRED) { console.log('User does not have permissions to buy but requested parental approval (iOS only)'); } else { console.warn(`Something went wrong with the purchase. Received errorCode ${errorCode}`); } }); ``` `results` always keep getting `"acknowledged": false` and `"purchaseState": 1` and it's just piling up on the older purchases each time I buy a new item until I close the app. If I comment `finishTransactionAsync(purchase, true);` to simulate a problem with my server to unlock the content (in this case, I top-up credits to the user account) then I get a responseCode ERROR and errorCode 8 (ITEM_ALREADY_OWNED) after having bought 1 time an item, until I close the app. I don't understand how am I supposed to use it properly. I end up doing something like this but it feels like dirty hack to me: ``` InAppPurchases.setPurchaseListener(async ({ responseCode, results, errorCode }) => { if (responseCode === InAppPurchases.IAPResponseCode.OK) { console.log("RESPONSE CODE OK"); results.forEach(async purchase => { if (!purchase.acknowledged) { // <- it's always === false anyway... console.log(`Successfully purchased ${purchase.productId}`); // Process transaction here and unlock content... // Let's simulate that things go wrong so I comment the following line //await InAppPurchases.finishTransactionAsync(purchase, true); } }); } // Else find out what went wrong else if (responseCode === InAppPurchases.IAPResponseCode.USER_CANCELED) { console.log('User canceled the transaction'); } else if (responseCode === InAppPurchases.IAPResponseCode.DEFERRED) { console.log('User does not have permissions to buy but requested parental approval (iOS only)'); } else if (errorCode === InAppPurchases.IAPErrorCode.ITEM_ALREADY_OWNED){ console.log("This item has been purchased already but failed to consume"); const HISTORY = await InAppPurchases.getPurchaseHistoryAsync(); if (HISTORY.responseCode === InAppPurchases.IAPResponseCode.OK) { HISTORY.results.forEach(result => { // Process transaction here and unlock content... // Let's say that this time things go well await InAppPurchases.finishTransactionAsync(purchase, true); }); } else console.log("HISTORY didn't work"); } else { console.warn(`Something went wrong with the purchase. Received errorCode ${errorCode}`); } }) ``` Do you have any advice?

Topic		Replies	Views
InAppPurchases example Expo SDK	1	591	August 10, 2020
[expo-in-app-purchases] finishTransactionAsync() does not consume purchased item Expo Development Tools	3	739	April 24, 2022
Issues with implementing Expo In App Purchases Expo Development Tools inapppurchases	7	1523	January 21, 2022
Expo In App Purchases Window Not Popping Up Expo SDK inapppurchases	1	165	May 29, 2023
PurchaseItemAsync does not prompt user to purchase item when subscription is expired Expo Development Tools inapppurchases	1	534	April 15, 2021

InAppPurchases expo

Related Topics