REST · cURL · OAuth · Webhooks
I build and repair integrations across REST endpoints, cURL clients, OAuth and token flows, webhooks, payments, authentication, storage, and platform APIs. Reloadly airtime integration is a representative example, including phone validation, operator lookup, amount handling, and transaction feedback.
Senior PHP & Backend Developer
Focused API Integrations capabilities
Each capability is scoped against the installed version, hosting, current behavior, and surrounding customizations before implementation begins.
Connect a PHP product to Reloadly for supported country, phone, operator, amount, and top-up workflows with clear transaction feedback.
Build maintainable server-side clients around provider endpoints, headers, payloads, timeouts, validation, and structured responses.
Implement supported authorization flows and keep credentials, access tokens, expiry, and permissions connected to application state.
Validate provider callbacks, map external states to internal records, and handle repeated or delayed events deliberately.
Connect provider workflows that affect money, identity, files, media, notifications, or cross-application access.
Document the integration with practical collections, environments, authentication examples, request and response contracts, errors, and implementation notes.
Clear service boundaries
These boundaries preserve the difference between evidenced API Integrations work and a broader service that has not been claimed.
The client controls provider accounts, approvals, billing, quotas, credentials, sandbox access, and available endpoints. Integration scope follows the current provider documentation.
The application can handle provider failure clearly, but it cannot guarantee a third-party response time, availability, approval decision, price, or unchanged API.
Sensitive flows require server-side validation, credential separation, and defined state handling. This does not claim a formal compliance audit or certification.
Postman collections and frontend handoff notes are working integration documentation. No OpenAPI certification, coverage metric, or documentation standard compliance is implied.
Reloadly, cURL, OAuth 2.0, REST, webhooks, payment, SSO, storage, and platform API capabilities are supported by representative project records and confirmed experience. Postman documentation is described without certifications or invented coverage metrics.
API Integrations project evidence
Matches are selected from project titles, summaries, categories, and technology lists—not from unrelated generic case studies.
A multi-phase modernization of an established PHP social platform covering authentication, communications, media, onboarding, PWA behavior, and custom administrative controls.
Read case study
A secure file-management module for large uploads, validation, malware inspection, object storage, and controlled downloads.
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A set of payment, subscription, and single-sign-on workflows connecting a community platform with a Laravel SaaS application.
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A secure prepaid airtime flow with international phone validation, operator detection, amount handling, and transaction feedback.
Read case study
A translation and audio-processing module supporting multilingual content, chunked media, and browser-friendly playback.
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Focused repair of WoWonder PHP, MySQL, API, login, SMTP, or post-update issues within the supported platform scope.
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Focused troubleshooting of PlayTube API behavior, undefined errors, 404 responses, and broken application routes within an existing installation.
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A PlayTube-specific integration of YouTube Shorts behavior into an existing platform, reviewed against the installed version, theme, and current content workflow.
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A security-focused account upgrade combining passkey registration and sign-in with authenticator-app TOTP, recovery boundaries, and existing PHP session rules.
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A practical API handoff that turns implemented PHP endpoints into usable Postman collections, environments, examples, error contracts, and frontend state guidance.
Read case studyRelevant development services
REST, cURL, OAuth, and webhook integrations for payments, Reloadly top-ups, authentication, media, storage, communications, and automation.
Stripe, PayPal, Mollie, and other supported gateway setup for checkout flows, recurring plans, wallet logic, transaction records, and payment status handling.
Login bridges, WebAuthn passkeys, site two-factor authentication, email verification, role permissions, token flows, and cross-application sign-on.
New modules, business workflows, portals, dashboards, and backend functionality designed around your existing product.
Systematic diagnosis of PHP errors, JavaScript failures, database issues, broken integrations, and inconsistent production behavior.
PHP file and media workflows connected to Amazon S3, DigitalOcean Spaces, or Wasabi, with Cloudflare or Bunny CDN delivery where required.
API Integrations delivery process
Credentials are requested only after the scope and access requirement are understood, using an agreed secure channel.
Define the application action, provider endpoints, authentication, asynchronous events, internal state, interface feedback, and acceptance checks.
Confirm provider access, environment separation, token or key handling, test data, limits, webhooks, and current documentation.
Implement validated requests, normalized responses, protected credentials, state changes, and recoverable provider errors.
Verify webhooks or redirects, update internal records, and expose clear success, pending, rejected, and failed states to the client.
Exercise supported normal and failure paths, then provide Postman artifacts, auth examples, contracts, errors, and frontend handoff notes as agreed.
API Integrations FAQ
If the exact issue is not covered here, send the current platform behavior and I will say whether it fits the represented work.
API Integrations inquiry
Share the provider documentation, intended user workflow, authentication method, sandbox status, endpoints, webhook behavior, and the states your frontend must represent.