write op working, sort of. encodes b64

pkg/store/filesystem/store.go

@@ -2,15 +2,24 @@
 package store
 
 import (
+	"fmt"
+	"io/ioutil"
+	"log"
+
 	mstore "github.com/micro/go-micro/v2/store"
 )
 
 // Store interacts with the filesystem to manage account information
-type Store struct{}
+type Store struct {
+	mountPath string
+}
 
 // New returns a new file system store manager
+// TODO add mountPath as an option argument
 func New() Store {
-	return Store{}
+	return Store{
+		mountPath: "/var/tmp/ocis-store",
+	}
 }
 
 // Init implements the store interface
@@ -27,7 +36,14 @@ func (s *Store) Read(key string, opts ...mstore.ReadOption) ([]*mstore.Record, e
 }
 
 // Write implements the store interface
-func (s *Store) Write(*mstore.Record) error {
+func (s *Store) Write(rec *mstore.Record) error {
+	if rec.Key == "" {
+		return fmt.Errorf("%v", "key is empty")
+	}
+
+	if err := ioutil.WriteFile(s.mountPath+"/"+rec.Key, rec.Value, 0644); err != nil {
+		log.Panic(err)
+	}
 	return nil
 }