API integration development

Custom software for businesses that need systems to talk properly — reliably, securely, and without endless manual copy-and-paste work.

Webhook & API Processing Flow


Third-party Platform
        │
        ├─ API Requests
        ├─ Webhooks
        │
        ▼
Validation & Processing
        │
        ▼
Business Logic
        │
        ▼
Dashboards, Automation & Reporting

Integration work

The boring part is the important part

Good integrations are not just about calling an API. They need to handle authentication, bad data, rate limits, duplicate events, retries, logs, and all the awkward bits that happen once real users are involved.

Third-party APIs

Integrations with Gensolve, Strava, Garmin, Xero, Stripe, Postmark, Twilio, mapping services and custom platforms.

Custom workflows

Turning API data into dashboards, reports, admin tools, customer-facing features and useful internal automations.

Reliable automation

Queue-friendly, retry-aware processes that replace fragile one-off scripts and spreadsheet-based admin.

Deep dives

Platform-specific integration experience

These are a few examples of real-world integration projects delivered for New Zealand and Australian businesses. Experience also includes CRM systems, payment platforms, accounting software, mapping services, marketing tools, custom APIs and internal business applications.

Healthcare

Gensolve Integrations

$booking = [
    'service' => 'Physio',
    'location' => 'Auckland'
];

createAppointment($booking);

Custom software around healthcare and clinic workflows: website forms, lead capture, bookings, reporting, internal dashboards and admin automation.

Fitness APIs

Strava API Development

foreach ($activities as $activity) {
    syncActivityToChallenge(
        $user,
        $activity
    );
}

Strava-connected workflows for activity imports, OAuth, webhooks, athlete data, challenge platforms, leaderboards, GPX data and custom reporting.

Wearables

Garmin Integrations

{
  "sleepScore": 82,
  "bodyBattery": 67,
  "restingHeartRate": 48,
  "trainingReadiness": 91
}

Wearable and fitness data workflows for activity syncing, progress tracking, dashboards, challenge logic, health metrics and data transformation.

Accounting

Xero Integrations

if ($payment->isSuccessful()) 
{
    reconcileInvoice($invoice);
    notifyAccounts($invoice);
    releaseOrderForFulfilment($order);
}

Custom integrations between Xero and websites, CRMs, quoting systems, customer portals and operational workflows. Reduce duplicate data entry and automate invoicing, reporting and customer management.

Useful integrations usually start with a messy workflow

Exporting CSVs, copying data between platforms, checking emails, updating spreadsheets, or logging into three systems to answer one question.

Connect websites, CRMs and internal systems
Import customer, activity and operational data
Build dashboards from multiple APIs
Automate repetitive admin tasks
Sync bookings, invoices and customer records

Build notes

Notes from actual integration work

Webhooks are great — until they arrive twice

Webhook handlers should usually trigger safe background jobs, not perform every important action inline. Duplicate events and retries need to be expected.

Syncing everything is rarely the right answer

The useful question is not “can this data be synced?” It is “what data actually needs to move, when, and what happens if it doesn’t?”

Human-in-the-loop often beats blind automation

Some workflows are better with a suggested action, preview or approval step — speed without blindly trusting messy inputs.

Let's Talk

Need two systems to talk properly?

Whether it is a known platform, a messy legacy system, a private API or a workflow currently held together with spreadsheets, custom integration work can turn it into something reliable.

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