I need to create a link to open one particular Hangouts chat (not videocall). It is possible to open a chat in a separate window from the main Google+ page, but the URL of that window (something like https://talkgadget.google.com/u/0/talkgadget/_/frame?v=1395695842&hl=ru#tgtn_c71vh1
) can't be opened again.
Is it possible to get a permanent URL?
Best Answer
As of April 2018, It actually is possible to create URL to link to a chat with a specific person. (But who knows when Google will break these given the ongoing incoherence of their messaging applications…)
First, you'll need to know that person's Gaia ID (an internal ID used by Google Hangouts and Google Plus)
https://plus.google.com/me
. This will redirect to a URL of the formhttps://plus.google.com/1XXXXXXXXXX
. The long number at the end of the URL is your Gaia ID. (If you don't have a Google Plus profile, it'll be an error page, but it'll still have the correct Gaia ID.)https://plus.google.com/u/0/1XXXXXXXXXXXX/...
associated with their profile, you've got their Gaia ID.Anyway, once you've got someone's Gaia ID, it's pretty straightforward to create the correct URL to start a Hangout with them. Simply replace
1XXXXXXXXXXXX
below with that user's Gaia ID: