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= ranch:set_transport_options(3)
== Name
ranch:set_transport_options - Set the transport options
== Description
[source,erlang]
----
set_transport_options(Ref :: ranch:ref(),
TransOpts :: ranch:opts())
-> ok | {error, Reason :: term()}
----
Set the transport options.
Changes to the following options will take effect...
* immediately:
** `max_connections`
** `handshake_timeout`
** `shutdown`
* only after the listener has been suspended and resumed:
** `num_acceptors`
** `num_listen_sockets`
** `socket_opts`
* only when the entire listener is restarted:
** `connection_type`
** `num_conns_sups`
** `logger`
== Arguments
Ref::
The listener name.
TransOpts::
The new transport options.
== Return value
The atom `ok` is returned on success.
An error tuple is returned on failure, for example if the given
transport options contain invalid values.
== Changelog
* *2.0*: The restriction that the listener must be suspended
has been removed.
* *2.0*: The `TransOpts` argument must no longer contain
Ranch-specific options if given as a list. Use a map.
== Examples
.Set the transport options
[source,erlang]
----
Ref = example,
ok = ranch:suspend_listener(Ref),
ok = ranch:set_transport_options(Ref, TransOpts),
ok = ranch:resume_listener(Ref).
----
== See also
link:man:ranch:suspend_listener(3)[ranch:suspend_listener(3)],
link:man:ranch:resume_listener(3)[ranch:resume_listener(3)],
link:man:ranch:get_transport_options(3)[ranch:get_transport_options(3)],
link:man:ranch:set_max_connections(3)[ranch:set_max_connections(3)],
link:man:ranch:set_protocol_options(3)[ranch:set_protocol_options(3)],
link:man:ranch(3)[ranch(3)]
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