DefaultGatewayClient class
Default GatewayClient implementation backed by a provider-neutral GatewayTransport.
Responsibilities:
- serialize the GatewayTransactionRequest as JSON,
- attach an
Authorizationheader from the config's GatewayConfig.authTokenProvider (if any), - retry transient failures honoring GatewayConfig.retryPolicy.
Non-responsibilities:
- URL construction (the path is appended to GatewayConfig.backendBaseUrl verbatim; the POS owns the URL shape),
- response field interpretation beyond GatewayHandoffResponse (any processor-specific fields the backend returns reach the POS through its own backend call, not the SDK).
- Implemented types
Constructors
- DefaultGatewayClient({required GatewayConfig config, required GatewayTransport transport, String path = '/transactions'})
Properties
- config → GatewayConfig
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- path → String
-
Path appended to GatewayConfig.backendBaseUrl for
the POST. The POS can override this when building the
client through a custom factory.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- transport → GatewayTransport
-
final
Methods
-
close(
) → Future< void> -
Release any resources the client holds (sockets,
queues). Idempotent and safe to call concurrently with
an in-flight send.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
send(
GatewayTransactionRequest request) → Future< GatewayHandoffResponse> -
Send
requestand return a GatewayHandoffResponse. Throws GatewayError for any transport-level failure.override -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited