43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package bindings
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import (
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"context"
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"errors"
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"io"
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"github.com/dapr/components-contrib/health"
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"github.com/dapr/components-contrib/metadata"
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)
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// OutputBinding is the interface for an output binding, allowing users to invoke remote systems with optional payloads.
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type OutputBinding interface {
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metadata.ComponentWithMetadata
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Init(ctx context.Context, metadata Metadata) error
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Invoke(ctx context.Context, req *InvokeRequest) (*InvokeResponse, error)
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Operations() []OperationKind
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io.Closer
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}
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func PingOutBinding(ctx context.Context, outputBinding OutputBinding) error {
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// checks if this output binding has the ping option then executes
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if outputBindingWithPing, ok := outputBinding.(health.Pinger); ok {
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return outputBindingWithPing.Ping(ctx)
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} else {
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return errors.New("ping is not implemented by this output binding")
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}
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}
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