35 lines
697 B
Go
35 lines
697 B
Go
package main
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import (
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"context"
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"fmt"
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"os"
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"5803025015/w04/internal/config"
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"5803025015/w04/internal/database"
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)
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func main() {
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if err := config.LoadEnv(); err != nil {
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fmt.Fprintf(os.Stderr, "Unable to load env: %v\n", err)
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os.Exit(1)
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}
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conn, err := database.Connect()
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if err != nil {
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fmt.Fprintf(os.Stderr, "Unable to connect to database: %v\n", err)
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os.Exit(1)
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}
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defer conn.Close(context.Background())
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var name string
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var weight int64
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err = conn.QueryRow(context.Background(), "select name, weight from widgets where id=$1", 42).Scan(&name, &weight)
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if err != nil {
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fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
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os.Exit(1)
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}
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fmt.Println(name, weight)
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}
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