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135 lines
5 KiB
Markdown
135 lines
5 KiB
Markdown
# arikawa
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[![ Pipeline Status ][pipeline_img ]][pipeline ]
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[![ Report Card ][goreportcard_img]][goreportcard]
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[![ Godoc Reference ][pkg.go.dev_img ]][pkg.go.dev ]
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[![ Examples ][examples_img ]][examples ]
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[![ Discord Gophers ][dgophers_img ]][dgophers ]
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[![ Hime Arikawa ][himeArikawa_img ]][himeArikawa ]
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A Golang library for the Discord API.
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[dgophers]: https://discord.gg/7jSf85J
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[dgophers_img]: https://img.shields.io/badge/Discord%20Gophers-%23arikawa-%237289da?style=flat-square
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[examples]: https://github.com/diamondburned/arikawa/tree/v3/0-examples
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[examples_img]: https://img.shields.io/badge/Example-.%2F0--examples%2F-blueviolet?style=flat-square
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[pipeline]: https://github.com/diamondburned/arikawa/actions/workflows/test.yml
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[pipeline_img]: https://img.shields.io/github/actions/workflow/status/diamondburned/arikawa/test.yml?style=flat-square&label=Tests
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[pkg.go.dev]: https://pkg.go.dev/github.com/diamondburned/arikawa/v3
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[pkg.go.dev_img]: https://img.shields.io/badge/%E2%80%8B-reference-007d9c?logo=go&logoColor=white&style=flat-square
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[himeArikawa]: https://hime-goto.fandom.com/wiki/Hime_Arikawa
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[himeArikawa_img]: https://img.shields.io/badge/Hime-Arikawa-ea75a2?style=flat-square
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[goreportcard]: https://goreportcard.com/report/github.com/diamondburned/arikawa
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[goreportcard_img]: https://goreportcard.com/badge/github.com/diamondburned/arikawa?style=flat-square&label=Go%20Report
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## Library Highlights
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- More modularity with components divided up into independent packages, such as
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the API client and the Websocket Gateway being fully independent.
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- Clear separation of models: API and Gateway models are never mixed together so
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to not be confusing.
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- Extend and intercept Gateway events, allowing for use cases such as reading
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deleted messages.
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- Pluggable Gateway cache allows for custom caching implementations such as
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Redis, automatically falling back to the API if needed.
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- Typed Snowflakes make it much harder to accidentally use the wrong ID (e.g.
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it is impossible to use a channel ID as a message ID).
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- Working user account support, with much of them in [ningen][ningen]. Please
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do not use this for self-botting, as that is against Discord's ToS.
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[ningen]: https://github.com/diamondburned/ningen
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## Examples
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### [Commands (Hybrid)](https://github.com/diamondburned/arikawa/tree/v3/0-examples/commands-hybrid)
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commands-hybrid is an alternative variant of
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[commands](https://github.com/diamondburned/arikawa/tree/v3/0-examples/commands),
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where the program permits being hosted either as a Gateway-based daemon or as a
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web server using the Interactions Webhook API.
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Both examples demonstrate adding interaction commands into the bot as well as an
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example of routing those commands to be executed.
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### [Simple](https://github.com/diamondburned/arikawa/tree/v3/0-examples/simple)
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Simple bot example without any state. All it does is logging messages sent into
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the console. Run with `BOT_TOKEN="TOKEN" go run .`. This example only
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demonstrates the most simple needs; in most cases, bots should use the state or
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the bot router.
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**Note** that Discord discourages use of bots that do not use the interactions
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API, meaning that this example should not be used for bots.
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### [Undeleter](https://github.com/diamondburned/arikawa/tree/v3/0-examples/undeleter)
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A slightly more complicated example. This bot uses a local state to cache
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everything, including messages. It detects when someone deletes a message,
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logging the content into the console.
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This example demonstrates the PreHandler feature of the state library.
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PreHandler calls all handlers that are registered (separately from the session),
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calling them before the state is updated.
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**Note** that Discord discourages use of bots that do not use the interactions
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API, meaning that this example should not be used for bots.
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### Bare Minimum Bot Example
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The least amount of code recommended to have a bot that responds to a /ping.
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```go
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package main
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import (
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"context"
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"log"
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"os"
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"github.com/diamondburned/arikawa/v3/api"
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"github.com/diamondburned/arikawa/v3/api/cmdroute"
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"github.com/diamondburned/arikawa/v3/gateway"
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"github.com/diamondburned/arikawa/v3/state"
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"github.com/diamondburned/arikawa/v3/utils/json/option"
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)
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var commands = []api.CreateCommandData{{Name: "ping", Description: "Ping!"}}
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func main() {
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r := cmdroute.NewRouter()
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r.AddFunc("ping", func(ctx context.Context, data cmdroute.CommandData) *api.InteractionResponseData {
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return &api.InteractionResponseData{Content: option.NewNullableString("Pong!")}
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})
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s := state.New("Bot " + os.Getenv("BOT_TOKEN"))
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s.AddInteractionHandler(r)
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s.AddIntents(gateway.IntentGuilds)
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if err := cmdroute.OverwriteCommands(s, commands); err != nil {
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log.Fatalln("cannot update commands:", err)
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}
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if err := s.Connect(context.TODO()); err != nil {
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log.Println("cannot connect:", err)
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}
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}
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```
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## Testing
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The package includes integration tests that require `$BOT_TOKEN`. To run these
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tests, do:
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```sh
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export BOT_TOKEN="<BOT_TOKEN>"
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go test -tags integration -race ./...
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```
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