ENRUES
All services

ODD STUDIO / API Integration + Node.js

API, webhooks & payment flows

Connect the tools your business already uses. I implement a defined data flow, handle failures and make the result visible in your application.

What each option includes
A website and digital tools for a hospitality complex
Relevant work: Continuum

What each option includes

01

One REST data flow

€300

One provider, up to 2 endpoints and one input-to-output action in an existing application.

5 calendar days · 1 revision round

Discuss this package

02

Webhook workflow

€650

One event type, signature verification where supported, duplicate handling and an agreed retry/error path.

9 calendar days · 2 revision rounds

Discuss this package

03

Payment checkout

€1000

One provider checkout, one currency, payment-status webhook and status display in an existing app; test-mode validation.

12 calendar days · 2 revision rounds

Discuss this package

These are starting scopes. We confirm the fit, price and start date before work begins. Design, hosting and third-party usage are included only when explicitly listed.

Included in every option

One provider, one defined workflow, credential handling in server configuration, agreed failure cases, checks and deployment notes.

Outside this scope

Provider fees, account approval/KYC, multi-provider migration and complex subscription, tax or payout logic. Payment packages are verified in test mode; live activation depends on the client’s approved provider account.

What we need to start

Provider documentation, current app stack, expected input/output and failure behaviour, repository and a test environment. Share production secrets only through an agreed secure method after contracting.

How the work is delivered

  1. Implement the agreed workflow in your repository.
  2. Check the acceptance criteria and show the result on staging.
  3. Apply the included revisions and hand over the code and setup notes.

We discuss the work in writing, share a test version and provide handover notes. We work on one delivery at a time, taking larger projects through successive stages.

Relevant work

Continuum Ozon · Price Operations

Before we start

Can we work without frequent calls?

Yes. Requirements, updates and feedback can be handled in writing. Calls in English or Spanish need an agreed interpreter arrangement.

What counts as a revision?

One consolidated feedback round within the agreed scope. New pages, integrations or workflows are quoted separately. Corrections needed to meet the agreed acceptance criteria are part of delivery.

Do you use AI tools?

I use AI-assisted development where appropriate and remain responsible for reviewing, testing and delivering the code. We agree on any client restrictions before starting; private material is not shared with third-party tools without permission.