First table is working

util/errors.go

@@ -0,0 +1,11 @@
+package util
+
+import "log"
+
+func Must[T any](value T, err error) T {
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return value
+}

util/rand.go

@@ -2,11 +2,11 @@ package util
 
 import (
 	"crypto/rand"
-	"encoding/base64"
+	"encoding/hex"
 	"log"
 )
 
-// GenerateRandomString generates a random base64 string from a random array of "n" bytes (to prevent padding let n be a multiple of 3)
+// GenerateRandomString generates a random hex string from a random array of "n" bytes
 func GenerateRandomString(n int) string {
 	b := make([]byte, n)
 
@@ -15,5 +15,5 @@ func GenerateRandomString(n int) string {
 		log.Fatal(err)
 	}
 
-	return base64.URLEncoding.EncodeToString(b)
+	return hex.EncodeToString(b)
 }