Getting Error when trying to send one message about gosmpp HOT 6 CLOSED

@itsursujit sending sms (underlying) is async. This is thread safety enforcement due to the fact that smpp protocol is not multiplex capable.

You coud “sleep” before quiting. Another option is let me improve transaction graceful shutdown

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@itsursujit Could you please try rc10 (latest commit). I have just improve graceful shutdown a bit. You won't see error due to sudden closing net.Conn.

Thank you very much for playing around with gosmpp.

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Yes Now it's working without any issue.
How is the callback of the final status of a message is received? Is there any way I wait for callback of message either it's delivered or not?

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@itsursujit I guess you could not and SHOULD not wait.

There is no way to know when SMSC returns SubmitSMResp. Some SMSC misses the response.

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I wonder how other SMPP Gateway like Jasmin SMS Gateway receives callback (DLR) from SMSC and sends callback to user defined callback URL.

If you don't mind, can you please suggest some resources for learning SMPP

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@itsursujit

• You could dig deep into Smpp 3.4 Specification: https://smpp.org/SMPP_v3_4_Issue1_2.pdf
• For smpp framework, please also check out: https://github.com/OpenSmpp/opensmpp

I will close this. If you have any other problems, please don't hesitate to open issue.

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