API & SFTP Integration Guide

APIs and SFTP both solve valid integration problems. The better choice depends on how quickly data needs to move, what the source platform supports, how failures are handled and how the interface will be supported after go-live.

Define the data owner first

Before designing the interface, decide which system owns each object and field. Integration should distribute authoritative data, not create multiple platforms that can overwrite each other.

When REST APIs make sense

APIs are useful where near-real-time updates, record-level actions or interactive processes are required. They can support worker provisioning, training updates, approval outcomes and other event-driven transactions.

When SFTP or scheduled files make sense

File-based integration can be simpler and highly reliable for batch data such as nightly workforce extracts, daily reporting data or bulk migration. It is often easier to audit because the exact source file can be retained.

Design the schema and mapping

Document source field, target field, data type, mandatory status, transformation, default value and valid reference values. Mapping documentation becomes essential when a vendor changes a field or business rule later.

Handle dates and time zones

Date formats cause frequent failures. Define format, time zone, whether time is required and how blank or sentinel dates are treated. Test day/month ambiguity and daylight-saving impacts where relevant.

Authentication and secrets

Use supported authentication methods and keep credentials outside hard-coded scripts. Plan token expiry, certificate renewal, service-account ownership and access review.

Retries and idempotency

An integration should know whether a retry will create a duplicate record. Where possible, use stable identifiers and idempotent operations so repeated requests update the intended record rather than create another one.

Exception handling

Capture failed records with enough detail for someone to resolve them. A useful exception queue identifies source record, error, time, retry status and responsible owner.

Reconciliation

Compare expected and processed counts, identify unmatched records and confirm key business totals. Reconciliation is what proves that the interface moved the complete population, not merely that the technical job ran.

Support and monitoring

Document schedule, owner, dependencies, failure alerting and restart procedure. A production integration needs an operating model, not just code.

CloudHub provides API, SFTP and automation consulting across safety systems, HRIS, LMS, workforce and Power BI reporting.