Just to get something simple working, I wired up a form submit to create a new Community for an existing Container.
Using a similar form, Get Container works, returns info about the Container.
But the following gives a "Perhaps you're missing a required parameter" error. I've also tried it with all the location parameters, city/sate/zip, lat/lon, zip. Same error.
I've also tried it with a cURL call instead of a form submit, and as a JQuery ajax call. All give the same error.
I double checked the key value, but it's not giving an authentication error, anyway.
Oh, and I tried putting all the params on the URL: ...?key=12345&container_id=1234...etc.
Here's the code:
<input type='hidden' name="key" value="<my key value>">
<input type='hidden' name="sign" value="true">
<input type='hidden' name="container_id" value="<my container ID>">
<input type='hidden' name="zip" value="87506">
<input type='submit' value='Submit' />
</form>