my.setStorageSync

2026-08-06 06:12

Store synchronously the data in the specified key in the local cache.

Supported types of mini programs: DSL

This is a synchronous interface.

Sample Code

copy
my.setStorageSync({
  key: 'currentCity',
  data: {
    cityName: 'London',
    adCode: '330100',
    spell: ' London',
  }
});

Error code	Error message	Further action
2	Required parameter is empty	Make sure the data type of the `key` parameter is correct and the value is not empty.
12	Maximum storage	The data storage limit for a single mini program is 10 MB. Use the my.removeStorage JSAPI to clear unnecessary data.
13	Storage failure	Failed to store the data in the local cache. Please try again later.
14	Data length overrun	The maximum data size allowed for a single key is 200 KB. Please reduce the data length or split it into multiple keys.