[FEATURE] Please add watch mode

[MaxmaxmaximusAWS]

Please add watch mode =)

[PabloSzx]

If you have the API serving the schema besides your client, you can easily use the programmatic API https://gqless.com/cli/programmatic
We have already been using it and it works great, a watch mode doesn't have much sense in any other scenario other than trying to sync an automated output from another living instance, and for that, the programmatic API does the job way cleaner, for any other purpose, watch mode doesn't have any sense, since it would be literally just polling a graphql API for a 99.99% of no-change detection, it would be just unnecessary load for API.

[MaxmaxmaximusAWS]

P.S. Your project is amazing, today I showed it to my colleague from AWS, he is also delighted, I’ll figure out what can be done with this and how to integrate it into AWS AppSync, but after today's discussion, we agreed that the problem of AWS AppSync is in its monolithic nature, and it will be needed where then half a year to add an interlayer like Relay =), in general, I am very impressed with your development of the guys, tell me how to become your personal sponsor, not on behalf of a company, but on behalf of a person.

[samdenty]

I think a watch mode makes sense, although how we implement it is important as @PabloSzx said.

I could see how querying excessively would lead to rate-limits, so maybe a way we could work around that is to vary the interval.
For URLs that resolve to localhost / 127.0.0.1, polling every 200ms should be sufficient, other urls every 5 seconds.

A new subcommand gqless watch, would work as it'd be clear what it's doing.

If you want to send a PR the CLI is in packages/cli

[ericwooley]

You could probably just use this https://www.npmjs.com/package/forever, and essentailly poll

[samdenty]

Closing in favour of #194