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Before initiating the configuration, ensure you have the following credentials and connectivity in place:
  • Make sure that you have followed Get started with connectors.
  • Alacriti access: An active account in the Alacriti environment.
  • Network connectivity: Confirmed routing between the Alacriti environment and the Grand Central (GC) iPaaS.
  • Environment details: The following environment variables are needed from Alacriti to configure the connector:

Configuration guide

Follow these steps to initialize and authorize your Alacriti Batch Connector.

1. Establishing connectivity

Share the following details with Grand Central team to establish secure connectivity between Grand Central and Alacriti
  • Environment details: baseUrl and ipaddress of Alacriti application.
    Istio configuration: To add Alacriti IPs and DNS to the allowlist, see this page which describes how to configure Istio and how to add IPs and certificates to the allowlist.

2. Environment configuration

To initialize the Alacriti Batch Connector, you must define specific environment variables within your gc-applications-live repository. These variables are stored in the values.yaml for common parameters and batch-payments-v0.values.yaml file for outbound request and batch-inbound-payments-v0.values.yaml for inbound webhook events. For the full property list for each connector, including defaults and descriptions, see Reference.

Define common parameters

These variables are used across both outbound and inbound connectors connecting Grand Central to Alacriti and Alacriti to Grand Central. Below is a sample values.yaml:
Below is the path where the values.yaml needs to be placed:

Define outbound parameters

These variables along with common parameters in values.yamlare to authorize and route requests sent from Grand Central to Alacriti. Below is a sample batch-payments-v0.values.yaml:
Below is the path where the batch-payments-v0.values.yaml needs to be placed:

Define inbound/webhook parameters

Configure along with common parameters in values.yaml on how Grand Central receives asynchronous updates from Alacriti to GC.
Set up the sync-hub component as described in Sync Hub. The following ASB variables are available after configuring Sync Hub. This is a mandatory component for inbound connectivity.
Webhook registration: To process asynchronous updates (for example, successful settlements or network rejections), you must register your environment’s callback URL in the Alacriti Portal.

Below is a sample inbound-batch-payments-v0.values.yaml:
CustomLabels: CustomLabels are part of the Sync Hub setup. Once Sync Hub is enabled, adding the customLabels to the connector automatically invokes the Sync Hub URLs.
Below is the path where the inbound-batch-payments-v0.values.yaml needs to be placed:

Testing your integration

To access the Payments Unified API, you must include your Grand Central subscription key in the request header. If you do not have a key, please contact the Grand Central Support Team to have one provisioned.
Webhook integration: Share the API Key through 1Password or any standard tool with Alacriti to call the inbound APIs.
Test the API using the Postman collection.

Troubleshooting

If your connector isn’t responding as expected, check these common scenarios.
Cause: The Grand Central (GC) gateway cannot establish a handshake with the Alacriti endpoint. This typically indicates an upstream service outage at Alacriti or a network routing failure.Solution: Verify the operational status of the Alacriti environment with Alacriti. If the service is operational, contact the GC Support team.
Cause: The Grand Central (GC) gateway cannot establish a handshake with the Alacriti endpoint. This typically indicates an upstream service outage at Alacriti or a network routing failure.Solution: Verify the operational status of the Alacriti environment with Alacriti. If the service is operational, contact the GC Support team.
Cause: The client_id or client_secret provided during setup is incorrect.Solution: Re-verify your credentials with the Alacriti portal and contact the GC team to update the connection.
Cause: The number of incoming requests has exceeded the defined threshold for your subscription tier. This “429 Too Many Requests” response is a protective measure to ensure the stability of the Grand Central and Core Banking infrastructure.Solution: Review your application’s request patterns to identify unexpected spikes. If your business requirements have evolved and you require a higher throughput, contact the Grand Central Team to request an adjustment to your APIM rate limit policy.

Need more help?

Contact Support

Reach out to the Grand Central team for assistance with environment setup or rate limit increases.