CacheService<Id, Data> class

An Angel Service that caches data from another service.

This is useful for applications of scale, where network latency can have real implications on application performance.

Constructors

CacheService({required Service<Id, Data> database, required Service<Id, Data> cache, Duration timeout = const Duration(minutes: 10), bool ignoreParams = false})

Properties

app ↔ Angel
getter/setter pairinherited
bootstrappers → List<RequestHandler>
Handlers that must run to ensure this service's functionality.
no setterinherited
cache → Service<Id, Data>
The Service used to interface with a caching layer.
final
configuration → Map
A Map of application-specific data that can be accessed.
finalinherited
container → Container
A Container used to inject dependencies.
no setterinherited
database → Service<Id, Data>
The underlying Service that represents the original data store.
final
hashCode → int
The hash code for this object.
no setterinherited
ignoreParams → bool
If true (default: false), then result caching will discard parameters passed to service methods.
final
isAppActive → bool
no setterinherited
middleware → List<RequestHandler>
no setterinherited
mounted → Map<Pattern, Router<RequestHandler>>
no setterinherited
onService → Stream<Service>
Fired whenever a service is added to this instance.
no setterinherited
readData → (FutureOr<Data> Function(RequestContext, ResponseContext)?)
A Function that reads the request body and converts it into Data.
no setterinherited
routes → List<Route<RequestHandler>>
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
services → Map<Pattern, Service>
A set of Service objects that have been mapped into routes.
no setterinherited
timeout → Duration
final

Methods

addRoute(String method, String path, RequestHandler handler, {Iterable<RequestHandler> middleware = const {}}) → Route<RequestHandler>
Adds a route that responds to the given path for requests with the given method (case-insensitive). Provide '*' as the method to respond to all methods.
inherited
addRoutes([Service? service]) → void
Generates RESTful routes pointing to this class's methods.
inherited
all(String path, RequestHandler handler, {Iterable<RequestHandler> middleware = const []}) → Route<RequestHandler>
Adds a route that responds to any request matching the given path.
inherited
chain(Iterable<RequestHandler> middleware) → ChainedRouter<RequestHandler>
Prepends the given middleware to any routes created by the resulting router.
inherited
clone() → Router<RequestHandler>
Returns a Router with a duplicated version of this tree.
inherited
close() → void
Closes this service, including any database connections or stream controllers.
inherited
create(Data data, [Map<String, dynamic>? params]) → Future<Data>
Creates a resource.
delete(String path, RequestHandler handler, {Iterable<RequestHandler> middleware = const []}) → Route<RequestHandler>
Adds a route that responds to a DELETE request.
inherited
dumpTree({dynamic callback(String tree)?, String header = 'Dumping route tree:', String tab = ' '}) → void
Creates a visual representation of the route hierarchy and passes it to a callback. If none is provided, print is called.
inherited
enableCache() → void
Enables the use of a cache to eliminate the overhead of consecutive resolutions of the same path.
inherited
findHookedService<T extends Service>(Pattern path) → HookedService<dynamic, dynamic, T>?
Shorthand for finding a HookedService in a statically-typed manner.
inherited
findOne([Map<String, dynamic>? params, String errorMessage = 'No record was found matching the given query.']) → Future<Data>
Retrieves the first object from the result of calling index with the given params.
inherited
findService<T extends Service>(Pattern path) → T?
Retrieves the service assigned to the given path.
inherited
findServiceOf<Id, Data>(Pattern path) → Service<Id, Data>?
Shorthand for finding a Service in a statically-typed manner.
inherited
get(String path, RequestHandler handler, {Iterable<RequestHandler> middleware = const []}) → Route<RequestHandler>
Adds a route that responds to a GET request.
inherited
group(String path, void callback(Router<RequestHandler> router), {Iterable<RequestHandler> middleware = const [], String name = ''}) → SymlinkRoute<RequestHandler>
Creates a route, and allows you to add child routes to it via a Router instance.
inherited
groupAsync(String path, FutureOr<void> callback(Router<RequestHandler> router), {Iterable<RequestHandler> middleware = const [], String name = ''}) → Future<SymlinkRoute<RequestHandler>>
Asynchronous equivalent of group.
inherited
Adds a route that responds to a HEAD request.
inherited
index([Map<String, dynamic>? params]) → Future<List<Data>>
Retrieves all resources.
map<U>(U encoder(Data), Data decoder(U), {FutureOr<U> readData(RequestContext, ResponseContext)?}) → Service<Id, U>
Creates an AnonymousService that wraps over this one, and maps input and output using two converter functions.
inherited
modify(Id id, Data data, [Map<String, dynamic>? params]) → Future<Data>
Modifies a resource.
mount(String path, Router<RequestHandler> router) → SymlinkRoute<RequestHandler>
Incorporates another Router's routes into this one's.
inherited
Generates a URI string based on the given input. Handy when you have named routes.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onHooked(HookedService<dynamic, dynamic, Service> hookedService) → void
Invoked when this service is wrapped within a HookedService.
inherited
options(String path, RequestHandler handler, {Iterable<RequestHandler> middleware = const {}}) → Route<RequestHandler>
Adds a route that responds to a OPTIONS request.
inherited
patch(String path, RequestHandler handler, {Iterable<RequestHandler> middleware = const []}) → Route<RequestHandler>
Adds a route that responds to a PATCH request.
inherited
post(String path, RequestHandler handler, {Iterable<RequestHandler> middleware = const []}) → Route<RequestHandler>
Adds a route that responds to a POST request.
inherited
put(String path, RequestHandler handler, {Iterable<RequestHandler> middleware = const []}) → Route
Adds a route that responds to a PUT request.
inherited
read(Id id, [Map<String, dynamic>? params]) → Future<Data>
Retrieves the desired resource.
readMany(List<Id> ids, [Map<String, dynamic>? params]) → Future<List<Data>>
Reads multiple resources at once.
inherited
remove(Id id, [Map<String, dynamic>? params]) → Future<Data>
Removes the given resource.
resolve(String absolute, String relative, List<RoutingResult<RequestHandler?>> out, {String method = 'GET', bool strip = true}) → bool
Finds the first Route that matches the given path, with the given method.
inherited
resolveAbsolute(String path, {String method = 'GET', bool strip = true}) → Iterable<RoutingResult<RequestHandler>>
Returns the result of resolve with path passed as both absolute and relative.
inherited
resolveAll(String absolute, String relative, {String method = 'GET', bool strip = true}) → Iterable<RoutingResult<RequestHandler>>
Finds every possible Route that matches the given path, with the given method.
inherited
toString() → String
A string representation of this object.
inherited
update(Id id, Data data, [Map<String, dynamic>? params]) → Future<Data>
Overwrites a resource.
use<Id, Data, T extends Service<Id, Data>>(String path, T service) → HookedService<Id, Data, T>
Mounts a service at the given path.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited