Start cleaning up linter errors. (#358)

* Start cleaning up linter errors. For #357

* Fix unmarshalling NullTime values

* More linter fixes

* Remove commented code

* Move defer up

* Consolidate error check lines

* Move error check to make sure row iteration was successful

* Cleaner error check + do not recreate pipe if it exists

* Consolidate hashing to generate client id

utils/nulltime.go

@@ -17,7 +17,7 @@ func (nt *NullTime) Scan(value interface{}) error {
 	return nil
 }
 
-// Value implements the driver Valuer interface.
+// Value implements the driver Value interface.
 func (nt NullTime) Value() (driver.Value, error) {
 	if !nt.Valid {
 		return nil, nil
@@ -32,3 +32,19 @@ func (nt NullTime) MarshalJSON() ([]byte, error) {
 	val := fmt.Sprintf("\"%s\"", nt.Time.Format(time.RFC3339))
 	return []byte(val), nil
 }
+
+func (nt NullTime) UnmarshalJSON(data []byte) error {
+	dateString := string(data)
+	if dateString == "null" {
+		return nil
+	}
+
+	dateStringWithoutQuotes := dateString[1 : len(dateString)-1]
+	parsedDateTime, err := time.Parse(time.RFC3339, dateStringWithoutQuotes)
+	if err != nil {
+		return err
+	}
+
+	nt.Time = parsedDateTime
+	return nil
+}