tgbotspec

tgbotspec turns the official Telegram Bot API reference into an OpenAPI 3.0 specification. Use the generated file with SDK generators, API explorers, or your own tooling.

Features

• Methods: all Telegram Bot API methods are included as OpenAPI paths with proper HTTP verbs and parameters.
• Objects: all Bot API objects are generated as reusable component schemas.
• Any‑of/one‑of types: union types from the docs are modeled with OpenAPI anyOf/oneOf (and refs) so generators can produce correct sum types.
• Authorization: bearer token (TelegramBotToken) with server URL https://api.telegram.org/bot{botToken}.

Examples

• TgBotKit Client OpenAPI (latest) (published by the client project)
• TgBotKit Client (golang, generated with oapi-codegen from this spec)

Run in Docker

You can run the tool in a container and capture the generated OpenAPI to a file.

• Using the published image from GHCR:

docker run --rm ghcr.io/metalagman/tgbotspec:latest > openapi.yaml

Run from binary

Download the latest release for your platform from GitHub Releases and run:

./tgbotspec -o openapi.yaml

Build and run locally

All commands require Go 1.26.4+ when building locally.

• (Recommended) Add the CLI as a tool to your project and run it:

go get -tool github.com/metalagman/tgbotspec/cmd/tgbotspec@latest
go tool tgbotspec -o openapi.yaml

• Install the CLI into your GOPATH/bin and run it:

go install github.com/metalagman/tgbotspec/cmd/tgbotspec@latest
tgbotspec -o openapi.yaml

• Or build a local binary from this repo and run it:

go build -o tgbotspec ./cmd/tgbotspec
./tgbotspec -o openapi.yaml

Multi-platform Distribution (Omnidist)

This repository includes Omnidist configuration in .omnidist/omnidist.yaml and a generated GitHub Actions workflow at .github/workflows/omnidist-release.yml.

Local Omnidist commands (using npm package @omnidist/omnidist@latest):

task omnidist:build
task omnidist:stage
task omnidist:verify

One-time Omnidist bootstrap in this repo:

task omnidist:init
task omnidist:ci

For tag-based release publishing in GitHub Actions, set repository secrets: NPM_PUBLISH_TOKEN and UV_PUBLISH_TOKEN.

Links

• Telegram Bot API: https://core.telegram.org/bots/api
• OpenAPI Specification: https://learn.openapis.org

License

This project is licensed under the MIT License. See the LICENSE file for details.