Use @wire to define the getRecord Lightning Data Service wire adapter to gain access to raw record data so that you may apply business logic or design a form that requires more customization than the LDS base components permit.
Use getListUi to show a list of field values, such as a list of contact names.
Although you can furnish data for numerous records using different wire adapters, each operation is a separate transaction. Use Apex to manage numerous records in a single transaction.
Call the createRecord, updateRecord, and deleteRecord functions in the lightning/ui*Api module to add, change, or remove a single record. Similar to the Lightning Data Service wire adapters, you can use numerous functions to operate with multiple records, but each operation is a separate transaction. Use Apex to manage numerous records in a single transaction.
Use the wire adapter that returns the least amount of data necessary for your use case to improve performance.
Use Apex
Use Apex if you are unable to use a base component or any Lightning Data Service wire adapters or functions.
Apex data is not handled like Lightning Data Service data; you must refresh the data. Call refreshApex(), which uses the wire configuration to obtain data and update the cache, if Apex data was provisioned via the wire service. If your code uses the getRecordNotifyChange() function to update the cache after calling an Apex method imperatively, the data will be refreshed.
Refreshing data from non-Apex wire adapters using refreshApex is no longer recommended. Use getRecordNotifyChange to update the record data returned by a non-Apex wire adaptor.
Conclusion
In this way, we should use LDS wherever possible except for the below conditions.
In these situations, use Apex:
- To work with objects like Task and Event that User Interface API does not provide.
- To perform tasks that the User Interface API is unable to perform, such as loading a list of records based on a set of criteria (for instance, loading the first 200 Accounts with an Amount > $1M).
To learn more about Lightning Web Components, check out some of my related blogs below!
Additional Resources
- Salesforce Developers: Coaching and Synchronizing Component Data with Lightning Data Service
- Configuration of an LWC
Cover Photo by Ryutaro Uozumi on Unsplash
