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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package brokers | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
|
|
||
| "cloud.google.com/go/pubsub" | ||
| "github.com/pkg/errors" | ||
| "github.com/willdot/sendit/config" | ||
| "github.com/willdot/sendit/service" | ||
| "google.golang.org/api/option" | ||
| ) | ||
|
|
||
| // GooglePubSubPublisher is a publisher that can send messages to a Google Pub/Sub server | ||
| type GooglePubSubPublisher struct { | ||
| client *pubsub.Client | ||
| } | ||
|
|
||
| // NewGooglePubSubPublisher will create a connection to a Google Pub/Sub server. Shutdown on the returned publisher should be called | ||
| // to close the connection once finished | ||
| func NewGooglePubSubPublisher(cfg *config.Config) (*GooglePubSubPublisher, error) { | ||
| options := make([]option.ClientOption, 0) | ||
| if cfg.GooglePubSubCfg.DisableAuth { | ||
| options = append(options, option.WithoutAuthentication()) | ||
| } | ||
|
|
||
| if cfg.URL != "" { | ||
| options = append(options, option.WithEndpoint(cfg.URL)) | ||
| } | ||
|
|
||
| client, err := pubsub.NewClient(context.Background(), cfg.GooglePubSubCfg.ProjectID, options...) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "failed to connect to Google Pub/Sub") | ||
| } | ||
|
|
||
| return &GooglePubSubPublisher{ | ||
| client: client, | ||
| }, nil | ||
| } | ||
|
|
||
| // Shutdown will close the Google Pub/Sub connection | ||
| func (p *GooglePubSubPublisher) Shutdown() { | ||
| _ = p.client.Close() | ||
| } | ||
|
|
||
| // Send will send the provided message | ||
| func (p *GooglePubSubPublisher) Send(destination string, msg service.Message) error { | ||
| headers, err := convertGooglePubSubHeaders(msg.Headers) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| t := p.client.Topic(destination) | ||
| res := t.Publish(context.Background(), &pubsub.Message{ | ||
| Data: msg.Body, | ||
| Attributes: headers, | ||
| }) | ||
|
|
||
| _, err = res.Get(context.Background()) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to publish message") | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func convertGooglePubSubHeaders(headerData []byte) (map[string]string, error) { | ||
| if headerData == nil { | ||
| return nil, nil | ||
| } | ||
|
|
||
| var headers map[string]string | ||
| err := json.Unmarshal(headerData, &headers) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "failed to convert header data") | ||
| } | ||
|
|
||
| return headers, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| package brokers | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/go-redis/redis/v8" | ||
| "github.com/pkg/errors" | ||
| "github.com/willdot/sendit/config" | ||
| "github.com/willdot/sendit/service" | ||
| ) | ||
|
|
||
| // RedisPublisher is a publisher that can send messages to a Redis server | ||
| type RedisPublisher struct { | ||
| client *redis.Client | ||
| } | ||
|
|
||
| // NewRedisPublisher will create a connection to a Redis server. Shutdown on the returned publisher should be called | ||
| // to close the connection once finished | ||
| func NewRedisPublisher(cfg *config.Config) (*RedisPublisher, error) { | ||
| client := redis.NewClient(&redis.Options{ | ||
| Addr: cfg.URL, | ||
| }) | ||
|
|
||
| err := client.Ping(context.Background()).Err() | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "failed to connect to Redis") | ||
| } | ||
|
|
||
| return &RedisPublisher{ | ||
| client: client, | ||
| }, nil | ||
| } | ||
|
|
||
| // Shutdown will close the Redis connection | ||
| func (p *RedisPublisher) Shutdown() { | ||
| _ = p.client.Shutdown(context.Background()) | ||
| } | ||
|
|
||
| // Send will send the provided message | ||
| func (p *RedisPublisher) Send(destination string, msg service.Message) error { | ||
| err := p.client.Publish(context.Background(), destination, msg.Body).Err() | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to send message") | ||
| } | ||
|
|
||
| return nil | ||
| } |
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