mirror of
https://github.com/lukaszraczylo/go-telegram.git
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lukaszraczylo
ac7cae8fa7
A fully-generated, strongly-typed Go client for the Telegram Bot API. * 176 methods + 301 types generated from Bot API v10.0 * 1408 auto-generated tests (8 scenarios per method) * Typed unions throughout — no 'any' in the public surface * Pluggable HTTP transport and JSON codec (default goccy/go-json) * Built-in retry middleware honouring Telegram's retry_after * Generic dispatcher with filters and conversation handlers * Self-verifying codegen pipeline (regen → audit → emit → run tests) * 14 example bots covering common patterns
78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
// Command scrape parses the Telegram Bot API HTML page into the IR
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// (internal/spec.API) and writes it to internal/spec/api.json.
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//
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// Usage:
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//
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// scrape -input <file> (read HTML from local file)
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// scrape -url <url> (fetch HTML from URL; default: live docs)
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// scrape -output <file> (output path; default: internal/spec/api.json)
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package main
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import (
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"errors"
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"flag"
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"fmt"
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"io"
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"net/http"
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"os"
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"time"
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"github.com/lukaszraczylo/go-telegram/internal/spec"
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)
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const defaultURL = "https://core.telegram.org/bots/api"
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func main() {
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input := flag.String("input", "", "local HTML file (overrides -url)")
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url := flag.String("url", defaultURL, "URL to fetch HTML from")
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output := flag.String("output", "internal/spec/api.json", "output path")
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overridesPath := flag.String("overrides", "internal/spec/overrides.json", "path to overrides JSON")
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flag.Parse()
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if err := run(*input, *url, *output, *overridesPath); err != nil {
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fmt.Fprintln(os.Stderr, "scrape:", err)
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os.Exit(1)
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}
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}
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func run(input, url, output, overridesPath string) error {
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htmlBytes, err := readHTML(input, url)
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if err != nil {
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return fmt.Errorf("read html: %w", err)
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}
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api, err := scrape(htmlBytes)
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if err != nil {
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return fmt.Errorf("scrape: %w", err)
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}
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overrides, err := spec.LoadOverrides(overridesPath)
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if err != nil {
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return fmt.Errorf("load overrides: %w", err)
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}
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overrides.Apply(api)
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return writeJSON(output, api)
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}
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func readHTML(input, url string) ([]byte, error) {
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if input != "" {
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return os.ReadFile(input)
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}
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c := &http.Client{Timeout: 30 * time.Second}
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req, err := http.NewRequest(http.MethodGet, url, nil)
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if err != nil {
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return nil, err
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}
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req.Header.Set("User-Agent", "go-telegram codegen scraper")
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resp, err := c.Do(req)
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if err != nil {
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return nil, err
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}
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defer func() { _ = resp.Body.Close() }()
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if resp.StatusCode != http.StatusOK {
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return nil, errors.New(resp.Status)
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}
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return io.ReadAll(resp.Body)
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}
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