Technical Prerequisites

Technical Prerequisites for Integrating with 4ws.trade Services

📌 Recommended Actions Before Integration
✅ Request API credentials and configure authentication.
✅ Set up a test environment to simulate API calls and validate workflows.
✅ Implement a callback endpoint for asynchronous services.
✅ Perform load testing for critical services.

1. Authentication and Security

Support for OAuth 2.0 or API Key authentication.

Communication over HTTPS with TLS 1.2 or higher.

Management of access tokens, including automatic refresh if required.

IP whitelisting if necessary.

2. Types of Services and Communication Modes

The 4ws.trade services are divided into:

Real-time services (Realtime API): they immediately return the processing result.

Asynchronous services with callbacks: they only confirm the receipt and formal validation of the message, while errors are later communicated via callback.

For asynchronous services, the system must

Implement a REST callback endpoint to receive error notifications or confirmations.

Ensure the endpoint is publicly accessible or reachable via VPN if required.

Use a unique identifier to track requests and correlate responses.

Please refers to How Testing callback response

3. Data Format and Structure

Support for JSON as the primary format for requests and responses.

Data structure compliant with the models provided in the 4ws.trade specifications.

Management of attachments/documents in Base64 or through temporary file links.

4. Error Handling and Retry Mechanism

Immediate errors (for real-time services) → handle HTTP status codes and detailed error messages.

Asynchronous errors (for callback-based services) → implement logic to process received error notifications.

Implement automatic retry mechanisms for transient errors (timeouts, network failures, temporarily unavailable resources).

6. Performance and Rate Limiting

Adhere to rate limits imposed by the service please referes to Rate Limits.

Implement a request queue to prevent overload and handle throttling.

7. Logging and Monitoring

Detailed logging of requests and responses for debugging and auditing.

Performance monitoring and handling of error notifications.

Automatic alerts for repeated failures or connectivity issues.

Technical Prerequisites