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metamask-extension/development/lib/parse-port.js
Mark Stacey 4cdf251ea5
Add mock Segment server (#9783)
This mock Segment server can be used to test our extension metrics. It
will respond to all request with HTTP 200, and will print the requests
to the console. It also has parsing built-in for Segment request
payloads.

Right now only the event name is printed, but we can enhance this in
the future to print more event information. We can also enhance the
mock to be a more realistic representation of the API.

The extension has been modified to allow the Segment host to be
overwritten with the `SEGMENT_HOST` environment variable. This will
ensure that all Segment events are redirected to that host.

So for example, to create a dev build that uses this server, you could
set the `SEGMENT_WRITE_KEY` and `SEGMENT_LEGACY_WRITE_KEY` values to
any non-empty string, and set `SEGMENT_HOST` to
`http://localhost:9090`.

This was created originally to test PR #9768
2020-11-09 18:15:23 -03:30

21 lines
611 B
JavaScript

/**
* Parse a string as a port number. Non-integers or invalid ports will
* result in an error being thrown.
*
* @param {String} portString - The string to parse as a port number
* @returns {number} The parsed port number
*/
function parsePort(portString) {
const port = Number(portString)
if (!Number.isInteger(port)) {
throw new Error(`Port '${portString}' is invalid; must be an integer`)
} else if (port < 0 || port > 65535) {
throw new Error(
`Port '${portString}' is out of range; must be between 0 and 65535 inclusive`,
)
}
return port
}
module.exports = { parsePort }