এক্সটার্নাল অফার প্রোগ্রামের জন্য ইন-অ্যাপ ইন্টিগ্রেশন সংক্রান্ত নির্দেশিকা

val billingClient = BillingClient.newBuilder(context)
    .enableBillingProgram(
        EnableBillingProgramParams.newBuilder()
            .setBillingProgram(BillingProgram.EXTERNAL_OFFER)
            .build()
    )
    .build()
Integration.kt

private BillingClient billingClient = BillingClient.newBuilder(context)
    .enableBillingProgram(BillingProgram.EXTERNAL_OFFER)
    .build();

billingClient.isBillingProgramAvailableAsync(
    BillingProgram.EXTERNAL_OFFER,
    object : BillingProgramAvailabilityListener {
        override fun onBillingProgramAvailabilityResponse(
            billingResult: BillingResult,
            billingProgramAvailabilityDetails: BillingProgramAvailabilityDetails
        ) {
            if (billingResult.responseCode != BillingResponseCode.OK) {
                // Handle failures such as retrying due to network errors,
                // handling external offers unavailable, etc.
                return
            }

            // External offers are available. Continue with steps in the
            // guide.
        }
    }
)
Integration.kt

billingClient.isBillingProgramAvailableAsync(
  BillingProgram.EXTERNAL_OFFER,
  new BillingProgramAvailabilityListener() {
    @Override
    public void onBillingProgramAvailabilityResponse(
      BillingResult billingResult,
      BillingProgramAvailabilityDetails billingProgramAvailabilityDetails) {
        if (billingResult.getResponseCode() != BillingResponseCode.OK) {
            // Handle failures such as retrying due to network errors,
            // handling external offers being unavailable, etc.
            return;
        }
        // External offers are available. Continue with steps in the
        // guide.
      }
  });

val params =
    BillingProgramReportingDetailsParams.newBuilder()
        .setBillingProgram(BillingProgram.EXTERNAL_OFFER)
        .build()

billingClient.createBillingProgramReportingDetailsAsync(
    params,
    object : BillingProgramReportingDetailsListener {
        override fun onCreateBillingProgramReportingDetailsResponse(
            billingResult: BillingResult,
            billingProgramReportingDetails: BillingProgramReportingDetails?
        ) {
            if (billingResult.responseCode != BillingResponseCode.OK) {
                // Handle failures such as retrying due to network errors.
                return
            }
            val externalTransactionToken =
                billingProgramReportingDetails?.externalTransactionToken
            // Persist the transaction token in your backend. You may pass it
            // to the external website when calling the launchExternalLink API.
        }
    }
)
Integration.kt

BillingProgramReportingDetailsParams params =
  BillingProgramReportingDetailsParams.newBuilder()
    .setBillingProgram(BillingProgram.EXTERNAL_OFFER)
    .build();

billingClient.createBillingProgramReportingDetailsAsync(
  params,
  new BillingProgramReportingDetailsListener() {
    @Override
    public void onCreateBillingProgramReportingDetailsResponse(
      BillingResult billingResult,
      @Nullable BillingProgramReportingDetails
        billingProgramReportingDetails) {
        if (billingResult.getResponseCode() != BillingResponseCode.OK) {
            // Handle failures such as retrying due to network errors.
            return;
        }

        String transactionToken =
          billingProgramReportingDetails.getExternalTransactionToken();
        // Persist the transaction token in your backend. You may pass it
        // to the external website when calling the launchExternalLink API.
      }
});

// An activity reference from which the external offers flow will be launched.
val activity = this.activity

val params =
    LaunchExternalLinkParams.newBuilder()
        .setBillingProgram(BillingProgram.EXTERNAL_OFFER)
        // You can pass along the external transaction token from
        // BillingProgramReportingDetails as a URL parameter in the URI
        .setLinkUri(yourLinkUri)
        .setLinkType(LaunchExternalLinkParams.LinkType.LINK_TO_APP_DOWNLOAD)
        .setLaunchMode(
            LaunchExternalLinkParams.LaunchMode.LAUNCH_IN_EXTERNAL_BROWSER_OR_APP
        )
        .build()

val listener: LaunchExternalLinkResponseListener =
    LaunchExternalLinkResponseListener { billingResult ->
        if (billingResult.responseCode == BillingResponseCode.OK) {
            // Proceed with the rest of the external offer flow. If the user
            // purchases an item, be sure to report the transaction to Google Play.
        } else {
            // Handle failures such as retrying due to network errors.
        }
    }

billingClient.launchExternalLink(activity, params, listener)
Integration.kt

// An activity reference from which the external offers flow will be launched.
Activity activity = ...;

LaunchExternalLinkParams params = LaunchExternalLinkParams.newBuilder()
  .setBillingProgram(BillingProgram.EXTERNAL_OFFER)
  // You can pass along the external transaction token from  
  // BillingProgramReportingDetails as a URL parameter in the URI
  .setLinkUri(yourLinkUri)
  .setLinkType(LaunchExternalLinkParams.LinkType.LINK_TO_APP_DOWNLOAD)
  .setLaunchMode(
    LaunchExternalLinkParams.LaunchMode.LAUNCH_IN_EXTERNAL_BROWSER_OR_APP)
  .build();

LaunchExternalLinkResponseListener listener =
  new LaunchExternalLinkResponseListener() {
    @Override
    public void onLaunchExternalLinkResponse(BillingResult billingResult) {
      if (billingResult.responseCode == BillingResponseCode.OK) {
        // Proceed with the rest of the external offer flow. If the user
        // purchases an item, be sure to report the transaction to Google
        // Play.
      } else {
        // Handle failures such as retrying due to network errors.
      }
    }
  }

billingClient.launchExternalLink(activity, params, listener);