Build a safer, observable integration

Integration overview

Start by identifying the approved API documentation and environments available to your account. Separate exploratory or sandbox-style work from production concepts, and never assume that a neutral example in this help center is a live company endpoint.

A dependable integration has four layers: authenticated requests, predictable error handling, safe retry behavior, and observable asynchronous events. Document ownership for credentials, deployments, monitoring, and incident response before launch.

Prepare the environment

1. Choose the intended environment and confirm its approved base URL.
2. Keep configuration outside source code and separate by environment.
3. Generate credentials only through an authorized account workflow.
4. Store secrets in a server-side environment variable or managed secret store.
5. Set timeouts, structured redacted logging, and request-ID capture before the first write request.

Authentication and keys

Send credentials only from trusted server-side code over HTTPS. Never place a secret in client-side JavaScript, a mobile application bundle, repository, screenshot, or support request. Grant the minimum access needed and rotate credentials after suspected exposure.

curl "https://api.example.com/v1/payments/test_payment_id" \
  --request GET \
  --header "Authorization: Bearer YOUR_API_KEY" \
  --header "Accept: application/json"

const response = await fetch(
  "https://api.example.com/v1/payments/test_payment_id",
  {
    headers: {
      Authorization: `Bearer ${process.env.API_KEY}`,
      Accept: "application/json"
    },
    signal: AbortSignal.timeout(10_000)
  }
);

if (!response.ok) {
  const requestId = response.headers.get("x-request-id");
  throw new Error(`Request failed: ${response.status} (${requestId})`);
}

const payment = await response.json();

import os
import requests

response = requests.get(
    "https://api.example.com/v1/payments/test_payment_id",
    headers={
        "Authorization": f"Bearer {os.environ['API_KEY']}",
        "Accept": "application/json",
    },
    timeout=10,
)
response.raise_for_status()
payment = response.json()

Requests, responses and safe writes

Use the documented HTTP method, content type, field types, and response schema. Validate required fields before sending. For write operations, use the documented idempotency mechanism so a timeout or network retry cannot create duplicate work.

• Treat validation errors as request problems; do not retry unchanged.
• Honor rate-limit guidance and use bounded exponential backoff for retryable responses.
• Set practical connection and read timeouts.
• Keep an internal correlation ID connected to the provider request ID.

Error handling

Group outcomes before choosing a response. Authentication and permission failures require credential or role review. Validation failures require payload correction. Rate limits require paced retries. Server errors can be retried cautiously when the operation is idempotent.

Webhooks

1. Expose a reliable HTTPS endpoint that accepts the documented request shape.
2. Verify the signature against the exact raw body using the approved secret.
3. Persist the event or delivery ID before longer processing.
4. Return a timely success response, then process asynchronously.
5. Deduplicate and make every handler safe to run more than once.

Logging and test strategy

Record safe URL paths, methods, statuses, durations, UTC times, request IDs, event IDs, and environment names. Exclude authorization headers, API secrets, passwords, full payment data, and unfiltered personal information.

Test happy paths, validation failures, authentication failures, rate limits, timeouts, retried writes, out-of-order webhooks, duplicate webhook deliveries, and recovery after a temporary outage.

Pre-launch checklist

• Production hosts and credentials are separated from non-production values.
• Secrets are server-side, access-limited, rotated, and excluded from logs.
• Timeouts, idempotency, backoff, and circuit-breaking behavior are reviewed.
• Webhook signatures, deduplication, and asynchronous processing are tested.
• Alerts include request IDs and safe context without exposing customer data.
• Rollback and key-rotation procedures have named owners.