You will get a reliable REST API, webhook, or third-party integration
Project details
I will implement a clearly scoped REST API, webhook, or third-party integration in an existing application. Depending on the selected package, the work can include authentication, request and response mapping, webhook handling, validation, error handling, logging, persistence, retries, scheduled synchronization, tests, and bounded deployment support. Basic covers one endpoint or webhook event. Standard covers up to three endpoints or events. Premium covers up to six endpoints or events with the agreed advanced handling. This project excludes service subscriptions and API usage fees, undocumented or inaccessible APIs, vendor approval delays, a complete new SaaS or admin application, unlimited support, and work outside the agreed integration flow.
Programming Languages
JavaScript, TypeScriptCoding Expertise
SecurityWhat's included
| Service Tiers |
Starter
$79
|
Standard
$249
|
Advanced
$599
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 8 days |
Number of Revisions | 1 | 2 | 2 |
Number of Pages | 1 | 1 | 1 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
About Refillm
Full-Stack Developer | Next.js, Flutter, APIs & AI Automation
Kragujevac, Serbia - 7:31 pm local time
I can help with:
• Next.js, React, and TypeScript applications
• Flutter and Android apps
• Node.js, PostgreSQL, REST APIs, and third-party integrations
• AI workflow automation, OCR, and document processing
• Business SaaS, dashboards, admin panels, and process automation
• Invoicing and e-invoicing integrations
• Field service, auto service, event, RSVP, and sports platforms
• Data migrations, deployments, bug fixes, and small enhancements
I am comfortable with small, clearly scoped fixes as well as larger builds. For existing systems, I start by understanding the current stack, expected result, and smallest safe change, then deliver in practical increments.
Send me a short description of the problem, current stack, and desired outcome, and I’ll suggest a focused next step.
Steps for completing your project
After purchasing the project, send requirements so Refillm can start the project.
Delivery time starts when Refillm receives requirements from you.
Refillm works on your project following the steps below.
Revisions may occur after the delivery date.
Review the integration scope
I will review the API documentation, payloads, authentication, and package limits before implementation.
Implement and test the data flow
I will implement the agreed endpoints or events, mapping, validation, and package-specific error handling.