idanoo/GoCatFacts
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Update randomness

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This commit is contained in:
Daniel Mason 2025-07-17 21:16:01 +12:00
parent 748270c22a
commit b606317241
Signed by: idanoo
GPG key ID: 387387CDBC02F132
2 changed files with 15 additions and 4 deletions
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4
go.sum Normal file
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@ -0,0 +1,4 @@
github.com/lukechampine/randmap v0.0.0-20161125183226-9e3c222d0413 h1:tysX0ocX3VYPAW06M8E5sEkRzr+7ygS162QpIi/N3hI=
github.com/lukechampine/randmap v0.0.0-20161125183226-9e3c222d0413/go.mod h1:CDBUzfMMkesqPDGmuMzuDrzBd2069GPe4wMJ3FC2sEw=
github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1 h1:lYpkrQH5ajf0OXOcUbGjvZxxijuBwbbmlSxLiuofa+g=
github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1/go.mod h1:pD8RvIylQ358TN4wwqatJ8rNavkEINozVn9DtGI3dfQ=

15
main.go
View file

@ -2,16 +2,17 @@ package main
import ( import (
"bufio" "bufio"
"crypto/rand"
"io" "io"
"log" "log"
"math/rand" "math/big"
"net/http" "net/http"
"os" "os"
) )
var ( var (
port = "8080" port = "8080"
facts = []string{} facts = map[int64]string{}
) )
func main() { func main() {
@ -30,6 +31,7 @@ func main() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, getRandomFact()+"\n") io.WriteString(w, getRandomFact()+"\n")
}) })
err = http.ListenAndServe(":"+port, nil) err = http.ListenAndServe(":"+port, nil)
if err != nil { if err != nil {
log.Fatalf("Error loading facts: %v", err) log.Fatalf("Error loading facts: %v", err)
@ -45,10 +47,13 @@ func loadFacts() error {
defer file.Close() defer file.Close()
scanner := bufio.NewScanner(file) scanner := bufio.NewScanner(file)
i := 0
for scanner.Scan() { for scanner.Scan() {
facts = append(facts, scanner.Text()) facts[int64(i)] = scanner.Text()
i++
} }
log.Println("Loaded", len(facts), "cat facts")
return scanner.Err() return scanner.Err()
} }
@ -58,5 +63,7 @@ func getRandomFact() string {
return "No facts available." return "No facts available."
} }
return facts[rand.Intn(len(facts))] counter := int64(len(facts) - 1)
n, _ := rand.Int(rand.Reader, big.NewInt(counter))
return facts[n.Int64()]
} }