Add doc comments

Signed-off-by: kolaente <k@knt.li>

pkg/modules/keyvalue/keyvalue.go

@@ -21,6 +21,7 @@ import (
 	"code.vikunja.io/api/pkg/modules/keyvalue/memory"
 )
 
+// Storage defines an interface for saving key-value pairs
 type Storage interface {
 	Put(key string, value interface{}) (err error)
 	Get(key string) (value interface{}, err error)
@@ -29,18 +30,22 @@ type Storage interface {
 
 var store Storage
 
+// InitStorage initializes the configured storage backend
 func InitStorage() {
 	store = memory.NewStorage()
 }
 
+// Put puts a value in the storage backend
 func Put(key string, value interface{}) error {
 	return store.Put(key, value)
 }
 
+// Get returns a value from a storage backend
 func Get(key string) (value interface{}, err error) {
 	return store.Get(key)
 }
 
+// Del removes a save value from a storage backend
 func Del(key string) (err error) {
 	return store.Del(key)
 }

pkg/modules/keyvalue/memory/memory.go

@@ -19,17 +19,20 @@ package memory
 
 import "sync"
 
+// Storage is the memory implementation of a storage backend
 type Storage struct {
 	store map[string]interface{}
 	mutex sync.Mutex
 }
 
+// NewStorage creates a new memory storage
 func NewStorage() *Storage {
 	s := &Storage{}
 	s.store = make(map[string]interface{})
 	return s
 }
 
+// Put puts a value into the memory storage
 func (s *Storage) Put(key string, value interface{}) (err error) {
 	s.mutex.Lock()
 	defer s.mutex.Unlock()
@@ -37,12 +40,14 @@ func (s *Storage) Put(key string, value interface{}) (err error) {
 	return nil
 }
 
+// Get retrieves a saved value from memory storage
 func (s *Storage) Get(key string) (value interface{}, err error) {
 	s.mutex.Lock()
 	defer s.mutex.Unlock()
 	return s.store[key], nil
 }
 
+// Del removes a saved value from a memory storage
 func (s *Storage) Del(key string) (err error) {
 	s.mutex.Lock()
 	defer s.mutex.Unlock()