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---
title: Visão Geral
description: TypeScript do lado do servidor que é executado dentro do Twenty — acionado por rotas HTTP, agendamentos cron, eventos de banco de dados, ferramentas de IA ou ações de fluxos de trabalho.
icon: bolt
---
A **camada de lógica** de um app do Twenty é o código que *é executado* — manipuladores TypeScript do lado do servidor que reagem a solicitações HTTP, agendamentos CRON e alterações de registros; habilidades e agentes de IA que vivem dentro do workspace; e conexões OAuth que permitem que suas funções ajam em nome de um usuário em serviços de terceiros.
```text
┌─ HTTP route ──┐
│ Cron schedule │
│ Database event │ ┌────────────────────┐
triggers ─┤ AI tool call ├─────▶│ Logic function │
│ Workflow action │ │ (your handler) │
│ Manual exec │ └────────────────────┘
└────────────────────┘ │
▼
┌────────────────────────────┐
│ Twenty API (records) │
│ Third-party API │
│ (via Connection token) │
└────────────────────────────┘
```
## Nesta seção
<CardGroup cols={2}>
<Card title="Funções lógicas" icon="bolt" href="/l/pt/developers/extend/apps/logic/logic-functions">
O bloco de construção principal — tipos de gatilho, payloads e o cliente de API tipado.
</Card>
<Card title="Habilidades e agentes" icon="robot" href="/l/pt/developers/extend/apps/logic/skills-and-agents">
Instruções reutilizáveis para agentes de IA e assistentes com prompts de sistema personalizados.
</Card>
<Card title="Conexões" icon="plug" href="/l/pt/developers/extend/apps/logic/connections">
Credenciais OAuth que seu app mantém para serviços de terceiros — Linear, GitHub, Slack e outros.
</Card>
<Card title="Armazenamento de chave-valor" icon="database" href="/l/pt/developers/extend/apps/logic/key-value-store">
Persistir o estado entre execuções de funções de lógica — caches, cursores e declarações entre espaços de trabalho.
</Card>
<Card title="Tarefas em segundo plano" icon="layer-group" href="/l/pt/developers/extend/apps/logic/background-jobs">
Adicione à fila a execução de uma função de lógica nos workers para contornar o limite de tempo de cada execução.
</Card>
</CardGroup>
## Tipos de gatilho em resumo
Uma função de lógica escolhe um ou mais gatilhos — cada entrada abaixo é um campo separado em `defineLogicFunction()`:
| Disparador | Quando é executado | Configuração |
| ----------------------------- | ----------------------------------------------------------------- | ------------------------------- |
| **Rota HTTP** | Uma solicitação atinge seu endpoint `/s/\<path>` | `httpRouteTriggerSettings` |
| **Cron** | Uma expressão CRON corresponde | `cronTriggerSettings` |
| **Evento de banco de dados** | Um registro do workspace é criado, atualizado ou excluído | `databaseEventTriggerSettings` |
| **Ferramenta de IA** | Um recurso de IA do Twenty decide chamar sua função | `toolTriggerSettings` |
| **Ação de fluxo de trabalho** | Uma etapa de fluxo de trabalho invoca sua função | `workflowActionTriggerSettings` |
As funções são executadas em sandbox, em processos Node.js isolados, e acessam o workspace por meio de um cliente de API tipado, com escopo definido pelo papel declarado em [`defineApplication()`](/l/pt/developers/extend/apps/config/application).
<Note>
**Ganchos de instalação** — código que é executado antes ou depois da instalação — compartilham esse runtime, mas usam suas próprias funções define e ficam em [Config → Install Hooks](/l/pt/developers/extend/apps/config/install-hooks).
</Note>