# PORTOS Developers

## PORTOS Developers

- [Introduction](https://developers.portos.sk/master.md)
- [Glossary](https://developers.portos.sk/glossary.md)
- [HTTP Status codes](https://developers.portos.sk/http-status-codes.md): List of all HTTP status codes used by API
- [Error models](https://developers.portos.sk/error-models.md): This article describes API error formats
- [Error codes](https://developers.portos.sk/error-codes.md)
- [Validation constraints](https://developers.portos.sk/validation-constraints.md)
- [Resource names](https://developers.portos.sk/resource-names.md)
- [User rights](https://developers.portos.sk/user-rights.md)
- [Device environments](https://developers.portos.sk/device-environments.md)
- [Localization](https://developers.portos.sk/localization.md)
- [NData query syntax](https://developers.portos.sk/ndata-query-syntax.md)
- [OpenAPI specification](https://developers.portos.sk/swagger-openapi-specification.md)
- [Data models](https://developers.portos.sk/data-models.md): This page contains data models that are utilized across multiple resources.
- [Authentication schemes](https://developers.portos.sk/authentication/authentication-schemes.md)
- [JWT Bearer Authentication](https://developers.portos.sk/authentication/authentication-schemes/jwt-bearer-authentication.md)
- [HMAC Authentication](https://developers.portos.sk/authentication/authentication-schemes/hmac-authentication.md)
- [SignalR](https://developers.portos.sk/notifications/signalr.md): The Notification component of Portos API uses SignalR to provide real-time updates to client applications.
- [Webhooks](https://developers.portos.sk/notifications/webhooks.md)
- [API keys](https://developers.portos.sk/api-reference/api-keys.md): This page provides a description of the available API routes for managing API keys.
- [Article categories](https://developers.portos.sk/api-reference/article-categories.md): This page provides a description of the available API routes for managing article category.
- [Companies](https://developers.portos.sk/api-reference/companies.md): This page provides a description of the available API routes for managing companies.
- [Currencies](https://developers.portos.sk/api-reference/currencies.md): This page provides a description of the available API routes for managing currencies.
- [Customers](https://developers.portos.sk/api-reference/customers.md): This page provides a description of the available API routes for managing customers.
- [Daily sales reports](https://developers.portos.sk/api-reference/daily-sales-reports.md): This page provides a description of the available API routes for managing daily sales reports.
- [Devices](https://developers.portos.sk/api-reference/devices.md): This page provides a description of the available API routes for managing devices.
- [Fiscals](https://developers.portos.sk/api-reference/fiscals.md): This page provides a description of the available API routes for managing fiscal devices.
- [Health check](https://developers.portos.sk/api-reference/api-health-check.md): This article describes the health check functionality of the PORTOS API.
- [License](https://developers.portos.sk/api-reference/license.md)
- [Modifiers](https://developers.portos.sk/api-reference/modifiers.md): This page provides a description of the available API routes for managing modifiers.
- [Order endpoints](https://developers.portos.sk/api-reference/order-endpoints.md): This page provides a description of the available API routes for managing order endpoint devices.
- [Orders](https://developers.portos.sk/api-reference/orders.md): This page provides a description of the available API routes for managing orders.
- [Payment types](https://developers.portos.sk/api-reference/payment-types.md): This page provides a description of the available API routes for managing payment types.
- [Plus](https://developers.portos.sk/api-reference/plus.md): This page provides a description of the available API routes for managing products.
- [Roles](https://developers.portos.sk/api-reference/roles.md): This page provides a description of the available API routes for managing roles.
- [Sessions](https://developers.portos.sk/api-reference/sessions.md): This page provides a description of the available API routes for managing sessions.
- [Settings](https://developers.portos.sk/api-reference/settings.md): This page provides a description of the available API routes for managing settings.
- [Stock takings](https://developers.portos.sk/api-reference/stock-takings.md): This page provides a description of the available API routes for managing stock takings.
- [Stock transfer numbering](https://developers.portos.sk/api-reference/stock-transfer-numbering.md): This page provides a description of the available API routes for managing stock transfer numberings.
- [Stock transfers](https://developers.portos.sk/api-reference/stock-transfers.md): This page provides a description of the available API routes for managing stock transfers.
- [Stocks](https://developers.portos.sk/api-reference/stocks.md): This page provides a description of the available API routes for managing stocks.
- [Tickets](https://developers.portos.sk/api-reference/tickets.md): This page provides a description of the available API routes for managing tickets.
- [Ticket Model States](https://developers.portos.sk/api-reference/tickets/ticket-model-states.md): Understanding the Various Phases of Tickets
- [Ticket Operations and User Rights](https://developers.portos.sk/api-reference/tickets/ticket-operations-and-user-rights.md): Navigating Access for Ticket Actions
- [Ticket Model Mathematics](https://developers.portos.sk/api-reference/tickets/ticket-model-mathematics.md): Exploring calculations and logic within Tickets and Ticket Items
- [Users](https://developers.portos.sk/api-reference/users.md): This page provides a description of the available API routes for managing users.
- [Vats](https://developers.portos.sk/api-reference/vats.md): This page provides a description of the available API routes for managing VAT rates.
- [Zones](https://developers.portos.sk/api-reference/zones.md): This page provides a description of the available API routes for managing zones.
- [Introduction](https://developers.portos.sk/integrations/integrations.md)
- [Online orders API](https://developers.portos.sk/integrations/online-orders-api.md): Transporting orders from e-shops or food delivery platforms to the PORTOS application.
- [Rewards API](https://developers.portos.sk/integrations/rewards-api.md): Rewards connector that enables to provide vouchers, coupons, rewards or deals for your customers.
- [PDA Files](https://developers.portos.sk/integrations/pda-files.md): Minimal approach integration using text files
- [Migration to V4.3](https://developers.portos.sk/previous-versions/migration-to-v4.3.md): Thi article describes breaking changes between PORTOS API v4.2 and v4.3.
- [Migration to V4.2](https://developers.portos.sk/previous-versions/migration-to-v4.2.md): Thi article describes breaking changes between PORTOS API v4.1 and v4.2.
- [Migration to V4.1](https://developers.portos.sk/previous-versions/migration-to-v4.1.md): Thi article describes breaking changes between PORTOS API v4.0 and v4.1.
- [Migration to V4](https://developers.portos.sk/previous-versions/migration-to-v4.md): Thi article describes breaking changes between PORTOS API v3.X and v4.0.
- [Legacy documentation](https://developers.portos.sk/previous-versions/legacy-documentation.md)