NATS Only receiving messages after subscription
I'm trying to communicate with a NATs server in the cloud with the "github.com/nats-io/go-nats" package.
I`m setting it up like this:
nc, err := nats.Connect(natsServerAddress)
if err != nil
log.Fatal(err)
else
natsConn = nc
After that I'm subscribing to the queue:
natsConn.Subscribe(natsRawSimDataQueue, func(m *nats.Msg)
fmt.Printf("Received a message: %sn", string(m.Data))
)
My actual problem is, that the subscription doesn't seem to have an effect. By accident I found out that the subscription handler is triggered after I published at least one message. So when the subscriber's also a publisher it seems to work. Here's the code for the publishing:
// push data to NATS Queue
natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener""))
Does anybody know where this issue come from?
go
nats.io go-micro edited Nov 15 '18 at 10:47
Shudipta Sharma
1,185414
asked Nov 15 '18 at 10:17
patreu22patreu22
190317
add a comment |
I'm trying to communicate with a NATs server in the cloud with the "github.com/nats-io/go-nats" package.
I`m setting it up like this:
nc, err := nats.Connect(natsServerAddress)
if err != nil
log.Fatal(err)
else
natsConn = nc
After that I'm subscribing to the queue:
natsConn.Subscribe(natsRawSimDataQueue, func(m *nats.Msg)
fmt.Printf("Received a message: %sn", string(m.Data))
)
My actual problem is, that the subscription doesn't seem to have an effect. By accident I found out that the subscription handler is triggered after I published at least one message. So when the subscriber's also a publisher it seems to work. Here's the code for the publishing:
// push data to NATS Queue
natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener""))
Does anybody know where this issue come from?
go
nats.io go-micro edited Nov 15 '18 at 10:47
Shudipta Sharma
1,185414
asked Nov 15 '18 at 10:17
patreu22patreu22
190317
What do you expect it to return if you publish nothing?
– DasDave
Dec 7 '18 at 9:04
'natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener"")) ' publishes, doesn't it?
– patreu22
Dec 7 '18 at 14:11
add a comment |
I'm trying to communicate with a NATs server in the cloud with the "github.com/nats-io/go-nats" package.
I`m setting it up like this:
nc, err := nats.Connect(natsServerAddress)
if err != nil
log.Fatal(err)
else
natsConn = nc
After that I'm subscribing to the queue:
natsConn.Subscribe(natsRawSimDataQueue, func(m *nats.Msg)
fmt.Printf("Received a message: %sn", string(m.Data))
)
My actual problem is, that the subscription doesn't seem to have an effect. By accident I found out that the subscription handler is triggered after I published at least one message. So when the subscriber's also a publisher it seems to work. Here's the code for the publishing:
// push data to NATS Queue
natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener""))
Does anybody know where this issue come from?
go
nats.io go-micro edited Nov 15 '18 at 10:47
Shudipta Sharma
1,185414
asked Nov 15 '18 at 10:17
patreu22patreu22
190317
I'm trying to communicate with a NATs server in the cloud with the "github.com/nats-io/go-nats" package.
I`m setting it up like this:
nc, err := nats.Connect(natsServerAddress)
if err != nil
log.Fatal(err)
else
natsConn = nc
After that I'm subscribing to the queue:
natsConn.Subscribe(natsRawSimDataQueue, func(m *nats.Msg)
fmt.Printf("Received a message: %sn", string(m.Data))
)
My actual problem is, that the subscription doesn't seem to have an effect. By accident I found out that the subscription handler is triggered after I published at least one message. So when the subscriber's also a publisher it seems to work. Here's the code for the publishing:
// push data to NATS Queue
natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener""))
Does anybody know where this issue come from?
go
nats.io go-micro go
nats.io go-micro edited Nov 15 '18 at 10:47
Shudipta Sharma
1,185414
asked Nov 15 '18 at 10:17
patreu22patreu22
190317
edited Nov 15 '18 at 10:47
Shudipta Sharma
1,185414
asked Nov 15 '18 at 10:17
patreu22patreu22
190317
edited Nov 15 '18 at 10:47
Shudipta Sharma
1,185414
edited Nov 15 '18 at 10:47
Shudipta Sharma
1,185414
edited Nov 15 '18 at 10:47
Shudipta Sharma
1,185414
1,185414
asked Nov 15 '18 at 10:17
patreu22patreu22
190317
asked Nov 15 '18 at 10:17
patreu22patreu22
190317
asked Nov 15 '18 at 10:17
patreu22patreu22
190317
190317
What do you expect it to return if you publish nothing?
– DasDave
Dec 7 '18 at 9:04
'natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener"")) ' publishes, doesn't it?
– patreu22
Dec 7 '18 at 14:11
add a comment |
What do you expect it to return if you publish nothing?
– DasDave
Dec 7 '18 at 9:04
'natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener"")) ' publishes, doesn't it?
– patreu22
Dec 7 '18 at 14:11
What do you expect it to return if you publish nothing?
– DasDave
Dec 7 '18 at 9:04
What do you expect it to return if you publish nothing?
– DasDave
Dec 7 '18 at 9:04
'natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener"")) ' publishes, doesn't it?
– patreu22
Dec 7 '18 at 14:11
'natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener"")) ' publishes, doesn't it?
– patreu22
Dec 7 '18 at 14:11
add a comment |
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What do you expect it to return if you publish nothing?
– DasDave
Dec 7 '18 at 9:04
'natsConn.Publish(natsRawSimDataQueue, byte(""msg": "Hello Listener"")) ' publishes, doesn't it?
– patreu22
Dec 7 '18 at 14:11