Working with Salesforce Data in LWC

Lightning Web ComponentsWorking with Salesforce Data in LWCRead and write Salesforce data from Lightning Web Components the right way: Lightning Data Service and its cache, base record forms, UI API wire adapters, the lightning/graphql module with mutations, Apex via @wire and imperative calls, refresh strategies, error handling and how to choose between them.Intermediate · about 90 minutesWhat you will learn

Explain how Lightning Data Service caches and shares records across components and what it enforces automatically

Build view and edit experiences with lightning-record-form, lightning-record-view-form and lightning-record-edit-form

Use lightning/uiRecordApi, lightning/uiObjectInfoApi and lightning/uiRelatedListApi wire adapters and functions

Query and mutate data with the lightning/graphql module, including variables, pagination and refresh

Call Apex with @wire and imperatively, with reactive parameters and correct cacheability

Keep data fresh with refreshApex, notifyRecordUpdateAvailable, GraphQL refresh and the RefreshEvent

Normalise errors with a reduceErrors utility and choose between LDS, GraphQL and Apex for a given requirement

Contents

The data access landscape

Lightning Data Service: the shared cache

Base record forms

lightning/uiRecordApi

lightning/uiObjectInfoApi: metadata and picklists

Related lists and list views

The GraphQL wire adapter: lightning/graphql

Calling Apex from LWC

Keeping data fresh

Error handling

Choosing between LDS, GraphQL and Apex

Worked example: Account Health Dashboard

Best practices

Common pitfalls

Hands-on exercises

Key takeaways