81 lines
2.2 KiB
Go
81 lines
2.2 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 command
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"time"
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"github.com/dapr/components-contrib/bindings"
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"github.com/dapr/kit/metadata"
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)
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var ErrMissingMessageName = errors.New("messageName is a required attribute")
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type publishMessagePayload struct {
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MessageName string `json:"messageName"`
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CorrelationKey string `json:"correlationKey"`
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MessageID string `json:"messageId"`
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TimeToLive *metadata.Duration `json:"timeToLive,omitempty"`
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Variables interface{} `json:"variables"`
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}
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func (z *ZeebeCommand) publishMessage(ctx context.Context, req *bindings.InvokeRequest) (*bindings.InvokeResponse, error) {
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var payload publishMessagePayload
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err := json.Unmarshal(req.Data, &payload)
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if err != nil {
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return nil, err
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}
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if payload.MessageName == "" {
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return nil, ErrMissingMessageName
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}
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cmd := z.client.NewPublishMessageCommand().
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MessageName(payload.MessageName).
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CorrelationKey(payload.CorrelationKey)
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if payload.MessageID != "" {
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cmd = cmd.MessageId(payload.MessageID)
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}
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if payload.TimeToLive != nil && payload.TimeToLive.Duration != time.Duration(0) {
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cmd = cmd.TimeToLive(payload.TimeToLive.Duration)
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}
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if payload.Variables != nil {
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cmd, err = cmd.VariablesFromObject(payload.Variables)
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if err != nil {
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return nil, err
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}
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}
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response, err := cmd.Send(ctx)
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if err != nil {
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return nil, fmt.Errorf("cannot publish message with name %s: %w", payload.MessageName, err)
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}
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jsonResponse, err := json.Marshal(response)
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if err != nil {
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return nil, fmt.Errorf("cannot marshal response to json: %w", err)
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}
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return &bindings.InvokeResponse{
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Data: jsonResponse,
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}, nil
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}
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