Create smaller ics file size

[schafevormfenster]

Google Calendar only works with files that are one megabyte (1MB) or smaller.

Currently the waste schedule with 2 month, all categories, whole region and only one html body is 6.7MB.

Ideas:

• use text description, no html (could reduce description to 50%)
• reduce organizer info or skip it at all (could reduce event payload by 5%)
• reduce timespan to 30 days into the future --> but then reduce cache ttl to force more updates (could reduce payload by 50%)
• split up schedules into separate ones by waste type

[schafevormfenster]

Try to reduce payload by using text instead of html description and skip organizer info.

[schafevormfenster]

Payload size is still about 3.3 MB. Next options are:

• split it up into regions
• split it up into waste types

[schafevormfenster]

split it up into waste types should do it.