TCP Listen Node

T

Web/TCP

TCP Listen

Binds a TCP listener on a port. Fires on_listening, then accepts incoming connections and invokes the handler for each. Holds execution until closed or timed out, then triggers on_close.

tcp_listenwebLong running

Inputs2

Outputs3

Security exposure5/10

Packageweb

Ratings

Scores range from 0 to 10. Higher values mean more impact, exposure, or operational weight.

SecurityAttack surface and exposure impact.

5/10Medium

PrivacyPotential sensitivity of processed data.

4/10Medium

PerformanceRuntime or resource pressure.

3/10High

GovernancePolicy, audit, or compliance impact.

5/10Medium

ReliabilityOperational stability considerations.

3/10High

CostExternal or compute cost impact.

0/10High

Input Pins

2

Execute

Execution

exec_in

Start the TCP listener

Config

Struct

config

TCP listener configuration (host, port, optional timeout, max connections)

SchemaTcpListenConfigTcpListenConfigTcpListenConfig5 fields

hoststringrequired

portinteger:uint16required

format uint16min 0max 65535

timeout_secondsinteger:uint64

format uint64default 0min 0

max_connectionsinteger:uint32

format uint32default 128min 0

tlsTlsConfig

default {"secure":false,"certificate":null,"ca_...

secureboolean

default false

certificateanyOf (2)

default null

variant 1TlsCertificatevariant

certificate_pemstringrequired

private_key_pemstringrequired

variant 2nullvariant

ca_certificate_pemstring | null

default null

server_namestring | null

default null

accept_invalid_certificatesboolean

default false

Schema enforced

Output Pins

3

On Listening

Execution

on_listening

Fires after the listener is bound and ready

On Close

Execution

on_close

Fires when the listener stops

Error

Execution

exec_error

Fires if the listener fails to bind

Node Info

Internal name

tcp_listen

Category

Web/TCP

Function references

Can reference functions