nanocat --req {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC] [-AQ]
nanocat --rep {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-AQ]
nanocat --push {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC]
nanocat --pull {--connect ADDR|--bind ADDR} [-AQ]
nanocat --pub {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC]
nanocat --sub {--connect ADDR|--bind ADDR} [--subscribe PREFIX ...] [-AQ]
nanocat --surveyor {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC] [-AQ]
nanocat --respondent {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-AQ]
nanocat --bus {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC] [-AQ]
nanocat --pair {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC] [-AQ]
In the case symlinks are installed:
nn_req {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC] [-AQ]
nn_rep {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-AQ]
nn_push {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC]
nn_pull {--connect ADDR|--bind ADDR} [-AQ]
nn_pub {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC]
nn_sub {--connect ADDR|--bind ADDR} [--subscribe PREFIX ...] [-AQ]
nn_surveyor {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC] [-AQ]
nn_respondent {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-AQ]
nn_bus {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC] [-AQ]
nn_pair {--connect ADDR|--bind ADDR} {--data DATA|--file PATH} [-i SEC] [-AQ]
The nanocat is a command-line tool to send and receive data via nanomsg
sockets. It can be used for debugging purposes, sending files through the
network, health checking the system or whatever else you can think of.
The ping-pong with nn_req/nn_rep sockets (must be run simultaneously):
nanocat --rep --bind tcp://127.0.0.1:1234 --data pong --format ascii
nanocat --req --connect tcp://127.0.0.1:1234 --data ping --format ascii
Or in shorter to write form:
nn_rep -L1234 -Dpong -A
nn_req -l1234 -Dping -A
Do periodic requests once a second:
nn_req -l1234 -Dping -A -i 1
The rep socket that never reply (no -D option), may be used to check if
resending the requests is actually work:
nanocat --rep --connect ipc:///var/run/app/req.socket
Send an output of the ls to whatever would connect to 127.0.0.1:1234 then exit:
ls | nanocat --push -L1234 -F-
Send heartbeats to imaginary monitoring service:
nanocat --pub --connect tpc://monitoring.example.org -D"I am alive!" --interval 10