> For the complete documentation index, see [llms.txt](https://cjays-organization.gitbook.io/nexora.ts/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cjays-organization.gitbook.io/nexora.ts/packages/core.md).

# @nexora.ts/core

Discord client, commands, events, message builders, DI container, event bus, cache, and scheduler.

```ts
import { Nexora, command, event, SlashCommand, EmbedBuilder } from '@nexora.ts/core';

const bot = new Nexora({ config, commandsPath: './commands/**/*.ts' });
await bot.start();
```

## Main exports

| Export                                                   | Purpose                                        |
| -------------------------------------------------------- | ---------------------------------------------- |
| `Nexora`                                                 | Bot lifecycle                                  |
| `command` / `event`                                      | Typed command / event helpers                  |
| `SlashCommand` / `BaseCommand`                           | Class-based slash commands                     |
| `SlashCommandGroup` / `ContextMenuCommand`               | Subcommands + context menus                    |
| `EventHandler`                                           | Class-based Discord events                     |
| `ButtonHandler` / `StringSelectHandler` / `ModalHandler` | Interaction handlers (`interactions/`)         |
| `Paginator` / `ConfirmDialog` / `ChoicePrompt`           | Prompt / UI helpers                            |
| `Service`                                                | Injectable service base (child logger)         |
| `Container` / `TOKENS`                                   | Dependency injection                           |
| `EventBus` / `FrameworkEvents`                           | Internal events (`COMMAND_EXECUTED`, …)        |
| `Cache` / `MemoryCacheAdapter`                           | Caching                                        |
| `Scheduler`                                              | Cron / interval / delayed jobs                 |
| Message builders                                         | Embeds, buttons, modals, Components V2 (below) |

## Builders

Fluent Discord payload builders with presets and short chains — shorter than raw discord.js, still `toJSON()`-compatible.

| Export                               | Purpose                                                                                               |
| ------------------------------------ | ----------------------------------------------------------------------------------------------------- |
| `EmbedBuilder` / `EmbedColor`        | Embeds + `success` / `error` / `warn` / `info` presets                                                |
| `ButtonBuilder` / `ActionRowBuilder` | Buttons and rows                                                                                      |
| `ModalBuilder` / `TextInputBuilder`  | Modals (auto action-row wrap)                                                                         |
| Select builders                      | `StringSelectBuilder`, `UserSelectBuilder`, …                                                         |
| `customId`                           | Optional `nexora:` / custom namespaces                                                                |
| Components V2                        | `text`, `container` / `MessageContainerBuilder`, `section`, `gallery`, `separator`, `ComponentsV2`, … |

`CommandContext.reply` resolves builders and can set `IS_COMPONENTS_V2` via `v2` or `ctx.componentsV2(…)`.

```ts
await ctx.embed(EmbedBuilder.info('Hello', 'From Nexora'));
await ctx.componentsV2(text('# Hi'));
```

Guides: [Builders](/nexora.ts/builders-and-ui/builders.md), [Components V2](/nexora.ts/builders-and-ui/components-v2.md).

## Command context & guards

`CommandContext` includes `reply`, `embed`, `componentsV2`, `defer`, `editReply`, `followUp`, plus `user`, `guild`, `member`, `channel`, and `interaction`.

Definition options: `guildOnly`, `adminOnly`, `permissions`, `cooldown` (ms).

See: [Commands](/nexora.ts/commands-and-interactions/commands.md), [Classes](/nexora.ts/classes/index.md), [Events](/nexora.ts/commands-and-interactions/events.md), [DI](/nexora.ts/advanced/dependency-injection.md).


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