func (t *Table) getItem(key *Key, consistentRead bool) (map[string]*Attribute, error) {
q := NewQuery(t)
q.AddKey(key)
if consistentRead {
q.SetConsistentRead(consistentRead)
}
jsonResponse, err := t.Server.queryServer(target("GetItem"), q)
if err != nil {
return nil, err
}
json, err := simplejson.NewJson(jsonResponse)
if err != nil {
return nil, err
}
itemJson, ok := json.CheckGet("Item")
if !ok {
// We got an empty from amz. The item doesn't exist.
return nil, ErrNotFound
}
item, err := itemJson.Map()
if err != nil {
message := fmt.Sprintf("Unexpected response %s", jsonResponse)
return nil, errors.New(message)
}
return parseAttributes(item), nil
}
func (s *Server) ListTablesCallbackIterator(cb func(string)) error {
var lastEvaluatedTableName string
for {
query := NewEmptyQuery()
query.AddExclusiveStartTableName(lastEvaluatedTableName)
jsonResponse, err := s.queryServer(target("ListTables"), query)
if err != nil {
return err
}
json, err := simplejson.NewJson(jsonResponse)
if err != nil {
return err
}
lastEvaluatedTableName = ""
if json, ok := json.CheckGet("LastEvaluatedTableName"); ok {
lastEvaluatedTableName, err = json.String()
if err != nil {
message := fmt.Sprintf("Unexpected response %s", jsonResponse)
return errors.New(message)
}
}
response, err := json.Get("TableNames").Array()
if err != nil {
message := fmt.Sprintf("Unexpected response %s", jsonResponse)
return errors.New(message)
}
for _, value := range response {
if t, ok := (value).(string); ok {
cb(t)
}
}
if lastEvaluatedTableName == "" {
break
}
}
return nil
}