/
engine.go
64 lines (52 loc) · 1.17 KB
/
engine.go
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package rabbitmq
import (
"encoding/json"
"github.com/Proofsuite/amp-matching-engine/types"
)
func (c *Connection) SubscribeEngineResponses(fn func(*types.EngineResponse) error) error {
ch := c.GetChannel("erSub")
q := c.GetQueue(ch, "engineResponse")
go func() {
msgs, err := ch.Consume(
q.Name, // queue
"", // consumer
true, // auto-ack
false, // exclusive
false, // no-local
false, // no-wait
nil, // args
)
if err != nil {
logger.Fatal("Failed to register a consumer:", err)
}
forever := make(chan bool)
go func() {
for d := range msgs {
var res *types.EngineResponse
err := json.Unmarshal(d.Body, &res)
if err != nil {
logger.Error(err)
continue
}
go fn(res)
}
}()
<-forever
}()
return nil
}
func (c *Connection) PublishEngineResponse(res *types.EngineResponse) error {
ch := c.GetChannel("erPub")
q := c.GetQueue(ch, "engineResponse")
bytes, err := json.Marshal(res)
if err != nil {
logger.Error("Failed to marshal engine response: ", err)
return err
}
err = c.Publish(ch, q, bytes)
if err != nil {
logger.Error("Failed to publish order: ", err)
return err
}
return nil
}