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SourceLists should be defined with Sources sorted by immediacy; with on-device Sources appearing first and remote, API-based Sources appearing last. Often, 1 local Source and 1 remote Source is all that will appear in a SourceList.
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基于 SOC 职业分类
Understand how sources declare operation capabilities via supportedOperations and how SourceList respects them.
FirestoreAdminSource connects google_cloud_firestore for server-side Dart applications to a SourceList.
FirestoreSource seamlessly connects Cloud Firestore streams to a SourceList.
Perform untyped Firestore document merges using the raw method on Firestore sources.
Cached data is mapped uniquely per request hash (RequestDetails with specific filter and pagination), supporting a powerful request-based caching behavior.
The SourceList class manages the delegation of read/write attempts to various configured Sources, with a read-thru cache system prioritizing local Sources.
| name | structuring-source-list |
| description | SourceLists should be defined with Sources sorted by immediacy; with on-device Sources appearing first and remote, API-based Sources appearing last. Often, 1 local Source and 1 remote Source is all that will appear in a SourceList. |
| metadata | {"last_modified":"Sat, 18 Apr 2026 1:52:50 GMT"} |
SourceLists should be defined with Sources sorted by immediacy; with on-device Sources appearing first and remote, API-based Sources appearing last. Often, 1 local Source and 1 remote Source is all that will appear in a SourceList.
As a rule of thumb: Local Sources must precede remote Sources.
SourceList<User>(
bindings: userBindings,
sources: [
InMemoryLocalSource(), // First chance retrieval (Synchronous cache memory)
HiveSource(), // Secondary storage fallback (Disk persistence)
RestSource(), // Utmost fallback (Network bound query)
],
)
Inverting this source order is invalid and will result in an AssertionError being thrown.