78 lines
1.7 KiB
Go
78 lines
1.7 KiB
Go
package main
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import (
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"database/sql"
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"flag"
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"html/template"
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"log/slog"
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"net/http"
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"regexp"
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"os"
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"snippetbox.chaosfem.tw/internal/models"
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_ "github.com/go-sql-driver/mysql"
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)
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// for application wide dependencies
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type application struct {
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logger *slog.Logger
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snippets *models.SnippetModel
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templateCache map[string]*template.Template
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}
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// main it's the snippetbox webapp
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func main() {
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// configuration
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addr := flag.String("addr", ":4000", "HTTP network address")
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dsn := flag.String("dsn", "web:dbpass@/snippetbox?parseTime=true", "DB data source name")
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logfmt := flag.String("logfmt", "text", "Log output format")
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loglevel := flag.String("loglevel", "INFO", "Log level: DEBUG, INFO, WARN, or ERROR")
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flag.Parse()
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logger := loggerBuilder(logfmt, loglevel)
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db, err := openDB(*dsn, logger)
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if err != nil {
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logger.Error(err.Error())
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os.Exit(1)
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}
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defer db.Close()
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templateCache, err := newTemplateCache()
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if err != nil {
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logger.Error(err.Error())
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os.Exit(1)
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}
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// setup the application
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app := &application{
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logger: logger,
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snippets: &models.SnippetModel{DB: db},
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templateCache: templateCache,
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}
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logger.Info("starting server", slog.String("addr", *addr))
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err = http.ListenAndServe(*addr, app.routes())
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logger.Error(err.Error())
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os.Exit(1)
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}
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func openDB(dsn string, logger *slog.Logger) (*sql.DB, error) {
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db, err := sql.Open("mysql", dsn)
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if err != nil {
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return nil, err
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}
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err = db.Ping()
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if err != nil {
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db.Close()
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return nil, err
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}
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passRegexp := regexp.MustCompile(":\\S+@")
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logger.Info("Opened DB connection pool", slog.String("adapter", "mysql"), slog.String("dsn", passRegexp.ReplaceAllString(dsn, ":<REDACTED>@")))
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return db, nil
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}
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