@spec any_in_collections?(any(), any()) :: boolean()

Checks if any of the given labels exist in any of the given collections. Supports both single values and lists for labels and collections.

Generates a consistent cache key for ActivityPub cache buckets.

Examples

iex> ActivityPub.Utils.ap_cache_key(:pointer, "01K62V27CP9Z5B0AP231QSY199")
"abc123:pointer:01K62V27CP9Z5B0AP231QSY199"

Calculates a TTL (in seconds) for caching based on the published date of an object. If the published date is in the future, returns the number of seconds until then (plus a small buffer). Otherwise, returns the default TTL (nil).

Examples

iex> ActivityPub.Utils.cache_ttl_from_published(%{"published" => DateTime.to_iso8601(DateTime.add(DateTime.utc_now(), 10))})
10..15

iex> ActivityPub.Utils.cache_ttl_from_published(%{"published" => DateTime.to_iso8601(DateTime.add(DateTime.utc_now(), -10))})
nil

Format according to RFC 1123, which is the standard for HTTP dates. Example: Mon, 15 Apr 2025 14:30:15 GMT

Takes a string and returns true if it is a valid UUID (Universally Unique Identifier)

conditionally update a map

Handles multiple cases where the input value is of a different type (atom, list, tuple, etc.) and returns a string representation of it.

Determines if an object or an activity is public.

Takes a map or keyword list, and returns a map with any atom keys converted to string keys. It can optionally do so recursively.