SummaInstall

Overview

This node integrates with the Summa API to perform various operations related to telecommunications data management. Specifically, for the HLR Subscription resource and the Get HLR Teleservice operation, it retrieves teleservice information associated with a given IMSI (International Mobile Subscriber Identity). This is useful in scenarios where you need to query subscriber service details from the Home Location Register (HLR) system, such as verifying active services or troubleshooting subscriber profiles.

Practical examples include:

• Telecom operators checking which teleservices are enabled for a subscriber.
• Systems that automate subscriber management by fetching current service configurations.
• Support tools that validate subscriber status before provisioning or billing.

Properties

Output

The node outputs JSON data containing the teleservice details retrieved from the Summa API for the specified IMSI. The structure typically includes fields describing the types of teleservices active or available for the subscriber, their statuses, and any relevant metadata returned by the API.

If the node supports binary data output, it would represent additional raw data or attachments related to the teleservice information; however, based on the provided code and context, the primary output is structured JSON.

Dependencies

• Requires an API key credential for authenticating with the Summa API.
• Depends on the @digital-boss/n8n-designpatterns package for resource-operation resolution and execution patterns.
• Uses internal backend modules (HttpClient, State, and operations) to handle HTTP requests, state management, and operation dispatching.
• The node expects proper configuration of the Summa API credentials within n8n.

Troubleshooting

• Missing or invalid IMSI: Since IMSI is required, ensure it is provided and correctly formatted. Errors may occur if this parameter is empty or malformed.
• Authentication errors: If the API key credential is missing, expired, or incorrect, the node will fail to authenticate with the Summa API. Verify credential setup.
• API connectivity issues: Network problems or incorrect endpoint configurations can cause request failures. Check network access and API availability.
• Unexpected API responses: If the Summa API changes or returns unexpected data structures, the node might not parse results correctly. Review API documentation and update the node if necessary.

Common error messages will relate to authentication failures, missing parameters, or HTTP request errors. Resolving these involves verifying credentials, input parameters, and network conditions.

Links and References

• Summa API Documentation (Replace with actual URL)
• n8n Documentation on Credentials
• IMSI Wikipedia Article