diff --git a/server/server_account_test.go b/server/server_account_test.go
index 819c91e..147a129 100644
--- a/server/server_account_test.go
+++ b/server/server_account_test.go
@@ -22,7 +22,7 @@ func TestAccount_Signup_Success(t *testing.T) {
 		"Authorization": util.BasicAuth("phil", "mypass"),
 	})
 	require.Equal(t, 200, rr.Code)
-	token, _ := util.ReadJSON[apiAccountTokenResponse](io.NopCloser(rr.Body))
+	token, _ := util.UnmarshalJSON[apiAccountTokenResponse](io.NopCloser(rr.Body))
 	require.NotEmpty(t, token.Token)
 	require.True(t, time.Now().Add(71*time.Hour).Unix() < token.Expires)
 
@@ -30,7 +30,7 @@ func TestAccount_Signup_Success(t *testing.T) {
 		"Authorization": util.BearerAuth(token.Token),
 	})
 	require.Equal(t, 200, rr.Code)
-	account, _ := util.ReadJSON[apiAccountResponse](io.NopCloser(rr.Body))
+	account, _ := util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
 	require.Equal(t, "phil", account.Username)
 	require.Equal(t, "user", account.Role)
 }
@@ -102,7 +102,7 @@ func TestAccount_Get_Anonymous(t *testing.T) {
 
 	rr := request(t, s, "GET", "/v1/account", "", nil)
 	require.Equal(t, 200, rr.Code)
-	account, _ := util.ReadJSON[apiAccountResponse](io.NopCloser(rr.Body))
+	account, _ := util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
 	require.Equal(t, "*", account.Username)
 	require.Equal(t, string(user.RoleAnonymous), account.Role)
 	require.Equal(t, "ip", account.Limits.Basis)
@@ -124,7 +124,7 @@ func TestAccount_Get_Anonymous(t *testing.T) {
 
 	rr = request(t, s, "GET", "/v1/account", "", nil)
 	require.Equal(t, 200, rr.Code)
-	account, _ = util.ReadJSON[apiAccountResponse](io.NopCloser(rr.Body))
+	account, _ = util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
 	require.Equal(t, int64(2), account.Stats.Messages)
 	require.Equal(t, int64(1002), account.Stats.MessagesRemaining)
 	require.Equal(t, int64(1), account.Stats.Emails)
@@ -151,7 +151,7 @@ func TestAccount_ChangeSettings(t *testing.T) {
 		"Authorization": util.BearerAuth(token.Value),
 	})
 	require.Equal(t, 200, rr.Code)
-	account, _ := util.ReadJSON[apiAccountResponse](io.NopCloser(rr.Body))
+	account, _ := util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
 	require.Equal(t, "de", account.Language)
 	require.Equal(t, 86400, account.Notification.DeleteAfter)
 	require.Equal(t, "juntos", account.Notification.Sound)
@@ -171,7 +171,7 @@ func TestAccount_Subscription_AddUpdateDelete(t *testing.T) {
 		"Authorization": util.BasicAuth("phil", "phil"),
 	})
 	require.Equal(t, 200, rr.Code)
-	account, _ := util.ReadJSON[apiAccountResponse](io.NopCloser(rr.Body))
+	account, _ := util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
 	require.Equal(t, 1, len(account.Subscriptions))
 	require.NotEmpty(t, account.Subscriptions[0].ID)
 	require.Equal(t, "http://abc.com", account.Subscriptions[0].BaseURL)
@@ -188,7 +188,7 @@ func TestAccount_Subscription_AddUpdateDelete(t *testing.T) {
 		"Authorization": util.BasicAuth("phil", "phil"),
 	})
 	require.Equal(t, 200, rr.Code)
-	account, _ = util.ReadJSON[apiAccountResponse](io.NopCloser(rr.Body))
+	account, _ = util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
 	require.Equal(t, 1, len(account.Subscriptions))
 	require.Equal(t, subscriptionID, account.Subscriptions[0].ID)
 	require.Equal(t, "http://abc.com", account.Subscriptions[0].BaseURL)
@@ -204,7 +204,7 @@ func TestAccount_Subscription_AddUpdateDelete(t *testing.T) {
 		"Authorization": util.BasicAuth("phil", "phil"),
 	})
 	require.Equal(t, 200, rr.Code)
-	account, _ = util.ReadJSON[apiAccountResponse](io.NopCloser(rr.Body))
+	account, _ = util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
 	require.Equal(t, 0, len(account.Subscriptions))
 }
 
@@ -243,7 +243,7 @@ func TestAccount_ExtendToken(t *testing.T) {
 		"Authorization": util.BasicAuth("phil", "phil"),
 	})
 	require.Equal(t, 200, rr.Code)
-	token, err := util.ReadJSON[apiAccountTokenResponse](io.NopCloser(rr.Body))
+	token, err := util.UnmarshalJSON[apiAccountTokenResponse](io.NopCloser(rr.Body))
 	require.Nil(t, err)
 
 	time.Sleep(time.Second)
@@ -252,7 +252,7 @@ func TestAccount_ExtendToken(t *testing.T) {
 		"Authorization": util.BearerAuth(token.Token),
 	})
 	require.Equal(t, 200, rr.Code)
-	extendedToken, err := util.ReadJSON[apiAccountTokenResponse](io.NopCloser(rr.Body))
+	extendedToken, err := util.UnmarshalJSON[apiAccountTokenResponse](io.NopCloser(rr.Body))
 	require.Nil(t, err)
 	require.Equal(t, token.Token, extendedToken.Token)
 	require.True(t, token.Expires < extendedToken.Expires)
@@ -277,7 +277,7 @@ func TestAccount_DeleteToken(t *testing.T) {
 		"Authorization": util.BasicAuth("phil", "phil"),
 	})
 	require.Equal(t, 200, rr.Code)
-	token, err := util.ReadJSON[apiAccountTokenResponse](io.NopCloser(rr.Body))
+	token, err := util.UnmarshalJSON[apiAccountTokenResponse](io.NopCloser(rr.Body))
 	require.Nil(t, err)
 
 	// Delete token failure (using basic auth)
diff --git a/server/util.go b/server/util.go
index 1fbe284..c1eff1f 100644
--- a/server/util.go
+++ b/server/util.go
@@ -124,8 +124,8 @@ func extractIPAddress(r *http.Request, behindProxy bool) netip.Addr {
 }
 
 func readJSONWithLimit[T any](r io.ReadCloser, limit int) (*T, error) {
-	obj, err := util.ReadJSONWithLimit[T](r, limit)
-	if err == util.ErrInvalidJSON {
+	obj, err := util.UnmarshalJSONWithLimit[T](r, limit)
+	if err == util.ErrUnmarshalJSON {
 		return nil, errHTTPBadRequestJSONInvalid
 	} else if err == util.ErrTooLargeJSON {
 		return nil, errHTTPEntityTooLargeJSONBody
diff --git a/util/util.go b/util/util.go
index 1966a86..ac1ed7b 100644
--- a/util/util.go
+++ b/util/util.go
@@ -31,10 +31,10 @@ var (
 	noQuotesRegex      = regexp.MustCompile(`^[-_./:@a-zA-Z0-9]+$`)
 )
 
-// Errors for ReadJSON and ReadJSONWithLimit functions
+// Errors for UnmarshalJSON and UnmarshalJSONWithLimit functions
 var (
-	ErrInvalidJSON  = errors.New("invalid JSON")
-	ErrTooLargeJSON = errors.New("too large JSON")
+	ErrUnmarshalJSON = errors.New("unmarshalling JSON failed")
+	ErrTooLargeJSON  = errors.New("too large JSON")
 )
 
 // FileExists checks if a file exists, and returns true if it does
@@ -295,17 +295,17 @@ func QuoteCommand(command []string) string {
 	return strings.Join(quoted, " ")
 }
 
-// ReadJSON reads the given io.ReadCloser into a struct
-func ReadJSON[T any](body io.ReadCloser) (*T, error) {
+// UnmarshalJSON reads the given io.ReadCloser into a struct
+func UnmarshalJSON[T any](body io.ReadCloser) (*T, error) {
 	var obj T
 	if err := json.NewDecoder(body).Decode(&obj); err != nil {
-		return nil, ErrInvalidJSON
+		return nil, ErrUnmarshalJSON
 	}
 	return &obj, nil
 }
 
-// ReadJSONWithLimit reads the given io.ReadCloser into a struct, but only until limit is reached
-func ReadJSONWithLimit[T any](r io.ReadCloser, limit int) (*T, error) {
+// UnmarshalJSONWithLimit reads the given io.ReadCloser into a struct, but only until limit is reached
+func UnmarshalJSONWithLimit[T any](r io.ReadCloser, limit int) (*T, error) {
 	defer r.Close()
 	p, err := Peek(r, limit)
 	if err != nil {
@@ -315,7 +315,7 @@ func ReadJSONWithLimit[T any](r io.ReadCloser, limit int) (*T, error) {
 	}
 	var obj T
 	if err := json.NewDecoder(p).Decode(&obj); err != nil {
-		return nil, ErrInvalidJSON
+		return nil, ErrUnmarshalJSON
 	}
 	return &obj, nil
 }
diff --git a/util/util_test.go b/util/util_test.go
index a435c06..04a988a 100644
--- a/util/util_test.go
+++ b/util/util_test.go
@@ -1,9 +1,11 @@
 package util
 
 import (
+	"io"
 	"net/netip"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -161,3 +163,40 @@ func TestQuoteCommand(t *testing.T) {
 	require.Equal(t, `rsync -av /home/phil/ root@example.com:/home/phil/`, QuoteCommand([]string{"rsync", "-av", "/home/phil/", "root@example.com:/home/phil/"}))
 	require.Equal(t, `/home/sweet/home "Äöü this is a test" "\a\b"`, QuoteCommand([]string{"/home/sweet/home", "Äöü this is a test", "\\a\\b"}))
 }
+
+func TestBasicAuth(t *testing.T) {
+	require.Equal(t, "Basic cGhpbDpwaGls", BasicAuth("phil", "phil"))
+}
+
+func TestBearerAuth(t *testing.T) {
+	require.Equal(t, "Bearer sometoken", BearerAuth("sometoken"))
+}
+
+type testJSON struct {
+	Name      string `json:"name"`
+	Something int    `json:"something"`
+}
+
+func TestReadJSON_Success(t *testing.T) {
+	v, err := UnmarshalJSON[testJSON](io.NopCloser(strings.NewReader(`{"name":"some name","something":99}`)))
+	require.Nil(t, err)
+	require.Equal(t, "some name", v.Name)
+	require.Equal(t, 99, v.Something)
+}
+
+func TestReadJSON_Failure(t *testing.T) {
+	_, err := UnmarshalJSON[testJSON](io.NopCloser(strings.NewReader(`{"na`)))
+	require.Equal(t, ErrUnmarshalJSON, err)
+}
+
+func TestReadJSONWithLimit_Success(t *testing.T) {
+	v, err := UnmarshalJSONWithLimit[testJSON](io.NopCloser(strings.NewReader(`{"name":"some name","something":99}`)), 100)
+	require.Nil(t, err)
+	require.Equal(t, "some name", v.Name)
+	require.Equal(t, 99, v.Something)
+}
+
+func TestReadJSONWithLimit_FailureTooLong(t *testing.T) {
+	_, err := UnmarshalJSONWithLimit[testJSON](io.NopCloser(strings.NewReader(`{"name":"some name","something":99}`)), 10)
+	require.Equal(t, ErrTooLargeJSON, err)
+}