BillingClient🔗

BillingClient is the main class used to interact with the Google Play Billing service.

It provides functionality for:

• Connecting to Google Play Billing
• Querying product details
• Querying previously owned purchases
• Starting purchase flows
• Consuming purchases
• Acknowledging purchases
• Managing subscriptions

All billing operations should be performed through an instance of this class.

Creating the Client🔗

Create the billing client before performing any billing operations.

var billing_client := BillingClient.new()

The BillingClient internally communicates with the Android plugin through a JNI singleton.

Typical Billing Flow🔗

A typical purchase flow looks like this:

1. Create BillingClient
2. Connect to signals
3. Call start_connection()
4. Wait for the connected signal
5. Query products with query_product_details()
6. Start purchase with purchase()
7. Handle on_purchase_updated
8. Acknowledge or consume the purchase

Example

var billing_client := BillingClient.new()

func _ready():
    billing_client.connected.connect(_on_connected)
    billing_client.start_connection()

func _on_connected():
    var productIds = ["coins_100"]
    billing_client.query_product_details(productIds, BillingClient.ProductType.INAPP)