mongo unfatal

dbs/mongo/mongo.go

@@ -23,8 +23,9 @@ var (
 	cancel     context.CancelFunc
 
 	existingCollections []string
-
-	ResourceMap map[string]interface{}
+	mngoCollections     []string
+	mngoConfig          MongoConf
+	ResourceMap         map[string]interface{}
 )
 
 var MONGOService = MongoDB{}
@@ -46,20 +47,27 @@ func (m *MongoDB) Init(collections []string, config MongoConf) {
 	m.Logger.Info().Msg("Connecting to" + config.GetUrl())
 	MngoCtx, cancel = context.WithTimeout(context.Background(), 10*time.Second)
 	defer cancel()
-
-	m.createClient(config.GetUrl())
-
-	m.Logger.Info().Msg("Connecting mongo client to db " + config.GetDatabase())
-	m.prepareDB(collections, config)
-
-	m.Logger.Info().Msg("Database is READY")
-
+	mngoCollections = collections
+	mngoConfig = config
+	if err := m.createClient(config.GetUrl()); err == nil {
+		m.connect()
+	}
 }
 
-func (m *MongoDB) createClient(MongoURL string) {
+func (m *MongoDB) connect() error {
+	if mngoClient == nil {
+		m.Logger.Info().Msg("Connecting mongo client to db " + mngoConfig.GetDatabase())
+		m.prepareDB(mngoCollections, mngoConfig)
 
+		m.Logger.Info().Msg("Database is READY")
+		return nil
+	} else {
+		return m.createClient(mngoConfig.GetUrl())
+	}
+}
+
+func (m *MongoDB) createClient(MongoURL string) error {
 	var err error
-
 	// Allows us to use marshal and unmarshall with results of FindOne() and others
 	bsonOpts := &options.BSONOptions{
 		UseJSONStructTags: true,
@@ -69,21 +77,21 @@ func (m *MongoDB) createClient(MongoURL string) {
 	clientOptions := options.Client().ApplyURI(MongoURL).SetBSONOptions(bsonOpts)
 	mngoClient, err = mongo.Connect(MngoCtx, clientOptions)
 	if err != nil {
-		m.Logger.Fatal().Msg("Mongodb NewClient " + MongoURL + ":" + "err")
-		panic(err)
+		mngoClient = nil
+		return errors.New("Mongodb NewClient " + MongoURL + ":" + "err")
 	}
 
 	// Ping the primary
 	if mngoClient, err = mongo.Connect(MngoCtx, clientOptions); err != nil {
-		m.Logger.Fatal().Msg("Mongodb connect " + MongoURL + ":" + "err")
-		panic(err)
+		mngoClient = nil
+		return errors.New("Mongodb connect " + MongoURL + ":" + "err")
 	}
 
 	if err = mngoClient.Ping(MngoCtx, nil); err != nil {
-		m.Logger.Fatal().Msg("Mongodb ping " + MongoURL + ":" + "err")
-		panic(err)
+		mngoClient = nil
+		return errors.New("Mongodb connect " + MongoURL + ":" + "err")
 	}
-
+	return nil
 }
 
 func (m *MongoDB) prepareDB(list_collection []string, config MongoConf) {
@@ -133,6 +141,9 @@ func (m *MongoDB) createCollection(collection_name string, new_collection *mongo
 }
 
 func (m *MongoDB) DeleteOne(id string, collection_name string) (int64, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return 0, 503, err
+	}
 	filter := bson.M{"_id": id}
 	targetDBCollection := CollectionMap[collection_name]
 	opts := options.Delete().SetHint(bson.D{{Key: "_id", Value: 1}})
@@ -148,6 +159,9 @@ func (m *MongoDB) DeleteOne(id string, collection_name string) (int64, int, erro
 }
 
 func (m *MongoDB) DeleteMultiple(f map[string]interface{}, collection_name string) (int64, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return 0, 503, err
+	}
 	filter := bson.D{}
 	for k, v := range f {
 		filter = append(filter, bson.E{Key: k, Value: v})
@@ -166,13 +180,15 @@ func (m *MongoDB) DeleteMultiple(f map[string]interface{}, collection_name strin
 }
 
 func (m *MongoDB) UpdateMultiple(set interface{}, filter map[string]interface{}, collection_name string) (int64, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return 0, 503, err
+	}
 	var doc map[string]interface{}
 	b, _ := bson.Marshal(set)
 	bson.Unmarshal(b, &doc)
 	f := bson.D{}
 	for k, v := range filter {
 		f = append(f, bson.E{Key: k, Value: v})
-
 	}
 	targetDBCollection := CollectionMap[collection_name]
 	MngoCtx, cancel = context.WithTimeout(context.Background(), 10*time.Second)
@@ -186,6 +202,9 @@ func (m *MongoDB) UpdateMultiple(set interface{}, filter map[string]interface{},
 }
 
 func (m *MongoDB) UpdateOne(set interface{}, id string, collection_name string) (string, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return "", 503, err
+	}
 	var doc map[string]interface{}
 	b, _ := bson.Marshal(set)
 	bson.Unmarshal(b, &doc)
@@ -202,6 +221,9 @@ func (m *MongoDB) UpdateOne(set interface{}, id string, collection_name string)
 }
 
 func (m *MongoDB) StoreOne(obj interface{}, id string, collection_name string) (string, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return "", 503, err
+	}
 	var doc map[string]interface{}
 	b, _ := bson.Marshal(obj)
 	bson.Unmarshal(b, &doc)
@@ -221,6 +243,9 @@ func (m *MongoDB) StoreOne(obj interface{}, id string, collection_name string) (
 }
 
 func (m *MongoDB) LoadOne(id string, collection_name string) (*mongo.SingleResult, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return nil, 503, err
+	}
 	filter := bson.M{"_id": id}
 	targetDBCollection := CollectionMap[collection_name]
 
@@ -237,6 +262,9 @@ func (m *MongoDB) LoadOne(id string, collection_name string) (*mongo.SingleResul
 }
 
 func (m *MongoDB) Search(search string, filter []string, collection_name string) (*mongo.Cursor, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return nil, 503, err
+	}
 	opts := options.Find()
 	opts.SetLimit(100)
 	if strings.TrimSpace(search) == "*" {
@@ -263,6 +291,9 @@ func (m *MongoDB) Search(search string, filter []string, collection_name string)
 }
 
 func (m *MongoDB) LoadFilter(filter map[string]interface{}, collection_name string) (*mongo.Cursor, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return nil, 503, err
+	}
 	f := bson.D{}
 	for k, v := range filter {
 		f = append(f, bson.E{Key: k, Value: v})
@@ -281,6 +312,9 @@ func (m *MongoDB) LoadFilter(filter map[string]interface{}, collection_name stri
 }
 
 func (m *MongoDB) LoadAll(collection_name string) (*mongo.Cursor, int, error) {
+	if err := m.createClient(mngoConfig.GetUrl()); err != nil {
+		return nil, 503, err
+	}
 	targetDBCollection := CollectionMap[collection_name]
 
 	MngoCtx, cancel = context.WithTimeout(context.Background(), 10*time.Second)

models/resource_model/resource_model.go

@@ -18,7 +18,6 @@ type AbstractResource struct {
 	Price            string         `json:"price,omitempty" bson:"price,omitempty"`
 	License          string         `json:"license,omitempty" bson:"license,omitempty"`
 	ResourceModel    *ResourceModel `json:"resource_model,omitempty" bson:"resource_model,omitempty"`
-	//Proxy            *ResourceProxy `json:"proxy,omitempty" bson:"proxy,omitempty"`
 }
 
 type Model struct {