Usage: wait-on {OPTIONS} resource [...resource] Description: wait-on is a command line utility which will wait for files, ports, sockets, and http(s) resources to become available (or not available using reverse flag). Exits with success code (0) when all resources are ready. Non-zero exit code if interrupted or timed out. Options may also be specified in a config file (js or json). For example --config configFile.js would result in configFile.js being required and the resulting object will be merged with any command line options before wait-on is called. See exampleConfig.js In shell combine with && to conditionally run another command once resources are available. ex: wait-on f1 && NEXT_CMD resources types are defined by their prefix, if no prefix is present, the resource is assumed to be of type 'file' resource prefixes are: file: - regular file (also default type). ex: file:/path/to/file http: - HTTP HEAD returns 2XX response. ex: http://m.com:90/foo https: - HTTPS HEAD returns 2XX response. ex: https://my/bar http-get: - HTTP GET returns 2XX response. ex: http-get://m.com:90/foo https-get: - HTTPS GET returns 2XX response. ex: https-get://my/bar tcp: - TCP port is listening. ex: tcp:1.2.3.4:9000 or tcp:foo.com:700 socket: - Domain Socket is listening. ex: socket:/path/to/sock For http over socket, use http://unix:SOCK_PATH:URL_PATH like http://unix:/path/to/sock:/foo/bar or http-get://unix:/path/to/sock:/foo/bar Standard Options: -c, --config js or json config file, useful for http(s) options -d, --delay Initial delay before checking for resources in ms, default 0 --httpTimeout Maximum time in ms to wait for an HTTP HEAD/GET request, default 0 which results in using the OS default -i, --interval Interval to poll resources in ms, default 250ms -l, --log Log resources begin waited on and when complete or errored -r, --reverse Reverse operation, wait for resources to NOT be available -s, --simultaneous Simultaneous / Concurrent connections to a resource, default Infinity Setting this to 1 would delay new requests until previous one has completed. Used to limit the number of connections attempted to a resource at a time. -t, --timeout Maximum time in ms to wait before exiting with failure (1) code, default Infinity Use postfix 'ms', 's', 'm' or 'h' to change the unit. --tcpTimeout Maximum time in ms for tcp connect, default 300ms Use postfix 'ms', 's', 'm' or 'h' to change the unit. --httpTimeout Maximum time to wait for the HTTP request, default Infinity Use postfix 'ms', 's', 'm' or 'h' to change the unit. -v, --verbose Enable debug output to stdout -w, --window Stability window, the time in ms defining the window of time that resource needs to have not changed (file size/availability) before signaling success, default 750ms. If less than interval, it will be reset to the value of interval. This is only used for files, other resources are considered available on first detection. -h, --help Show this message