Fix linter errors

Signed-off-by: Ryan Lettieri <[email protected]>

bindings/azure/cosmosdb/cosmosdb.go

@@ -44,8 +44,6 @@ type cosmosDBCredentials struct {
 	PartitionKey string `json:"partitionKey"`
 }
 
-const statusTooManyRequests = "429" // RFC 6585, 4
-
 // NewCosmosDB returns a new CosmosDB instance.
 func NewCosmosDB(logger logger.Logger) *CosmosDB {
 	return &CosmosDB{logger: logger}
@@ -73,25 +71,25 @@ func (c *CosmosDB) Init(metadata bindings.Metadata) error {
 		}
 	} else {
 		// Fallback to using Azure AD
-		env, errB := azure.NewEnvironmentSettings("cosmosdb", metadata.Properties)
-		if errB != nil {
-			return errB
+		env, errEnv := azure.NewEnvironmentSettings("cosmosdb", metadata.Properties)
+		if errEnv != nil {
+			return errEnv
 		}
-		token, err := env.GetTokenCredential()
-		if err != nil {
-			return err
+		token, errToken := env.GetTokenCredential()
+		if errToken != nil {
+			return errToken
 		}
 		client, err = azcosmos.NewClient(m.URL, token, nil)
 		if err != nil {
 			return err
 		}
 	}
-	// Create a container client
+
 	dbClient, err := client.NewDatabase(m.Database)
 	if err != nil {
 		return err
 	}
-
+	// Create a container client
 	dbContainer, err := dbClient.NewContainer(m.Collection)
 	if err != nil {
 		return err
@@ -135,7 +133,7 @@ func (c *CosmosDB) Operations() []bindings.OperationKind {
 	return []bindings.OperationKind{bindings.CreateOperation}
 }
 
-func (c *CosmosDB) Invoke(_ context.Context, req *bindings.InvokeRequest) (*bindings.InvokeResponse, error) {
+func (c *CosmosDB) Invoke(ctx context.Context, req *bindings.InvokeRequest) (*bindings.InvokeResponse, error) {
 	switch req.Operation {
 	case bindings.CreateOperation:
 		var obj interface{}