fixes to json structure in api calls and date formatting, plus readme updates

README.md

@@ -1,10 +1,11 @@
 this is a simple [maubot](https://github.com/maubot/maubot) plugin which interacts with a [matrix-registration](https://github.com/zeratax/matrix-registration) deployment and generates invite tokens.
 
-###Warning
-this bot currently only works with matrix-registration versions 0.7.x. Newer implementations (currently in development as of this comment) use different api endpoints and logic, and I haven't written those changes into this code. PRs are welcomed!
-
 modify the config to point to your matrix-registration url, include your admin secret to authenticate, and ensure that you're in the list of approved users.
 
+*please note* that matrix-registration versions BELOW 0.9.0 have different API endpoints, expected date structures, json
+arguments, etc. and require the `legacy_mr` value in your config to be set to `True`! If your matrix-registration
+instance is 0.9.0 or greater, leave this as `false`.
+
 once your bot is running, simply use the command
 
     !invite generate
@@ -23,4 +24,3 @@ to revoke a token, use
 
     !invite revoke MyTokenName
 
-please note: i haven't made the json output of those responses pretty. sorry not sorry.

invite.py

@@ -53,7 +53,7 @@ class Invite(Plugin):
 
         ex_date = datetime.datetime.strftime( \
                 (datetime.date.today() + datetime.timedelta(days=self.config["expiration"])), \
-                "%Y.%m.%d")
+                "%Y-%m-%d")
         # use re-ordered date if using legacy code
         if self.config["legacy_mr"] == True:
             ex_date = datetime.datetime.strftime( \
@@ -66,7 +66,7 @@ class Invite(Plugin):
         
         try:
             response = await self.http.post(f"{self.config['api_url']}/token", headers=headers, \
-                    json={"max_usage": 1, "one_time": True, "ex_date": ex_date})
+                    json={"max_usage": 1, "one_time": True, "ex_date": ex_date, "expiration_date": ex_date})
             resp_json = await response.json()
         except Exception as e:
             await evt.respond(f"request failed: {e.message}")
@@ -149,7 +149,7 @@ class Invite(Plugin):
         else:
             try:
                 response = await self.http.patch(f"{self.config['api_url']}/token/{token}", headers=headers, \
-                        json={"disable": True})
+                        json={"disabled": True})
                 resp_json = await response.json()
             except Exception as e:
                 await evt.respond(f"request failed: {e.message}")