// Deletes corresponding item in the given table.
func (s *Service) Delete(tableName string, item interface{}) error {
keys, err := types.Marshal(item, true)
if err != nil {
return nil
}
body := struct {
TableName string
Key types.AttributeValue
}{
TableName: tableName,
Key: keys,
}
return s.Do("DeleteItem", body, nil)
}
// Create or replace the item in the given table.
func (s *Service) Put(tableName string, item interface{}) error {
values, err := types.Marshal(item, false)
if err != nil {
return err
}
body := struct {
TableName string
Item types.AttributeValue
}{
TableName: tableName,
Item: values,
}
return s.Do("PutItem", body, nil)
}
// Get the corresponding item from the given table.
func (s *Service) Get(tableName string, item interface{}) error {
keys, err := types.Marshal(item, true)
if err != nil {
return err
}
var resp struct {
Item types.AttributeValue
}
body := struct {
TableName string
Key types.AttributeValue
}{
TableName: tableName,
Key: keys,
}
err = s.Do("GetItem", body, &resp)
if err != nil {
return err
}
return types.Unmarshal(resp.Item, item)
}
func (s *Service) BatchDelete(tableName string, items interface{}) error {
rv := reflect.ValueOf(items)
requests := make(types.WriteRequests)
deletes := make([]*types.WriteRequest, 0)
for i := 0; i < rv.Len(); i++ {
value, err := types.Marshal(rv.Index(i).Interface(), true)
if err != nil {
return err
}
deletes = append(deletes, &types.WriteRequest{
DeleteRequest: &types.DeleteRequest{
Key: value,
},
})
}
requests[tableName] = deletes
body := struct {
RequestItems types.WriteRequests
}{
RequestItems: requests,
}
return s.Do("BatchWriteItem", body, nil)
}