Full-featured cloud-based grekan-service
create_random_grekan
takes: nothing
returns: image/jpeg
get_post
takes: id (int) - query param
returns: json
add_image
takes: key (string) - header, image (raw bytes) request body
returns: string
delete_image
takes: key (string) - header, id (int) - query param
returns: string
get_post_in_range
takes: from (Date) - query param, to (Date) - query param
returns: json
count_posts
takes: nothing
returns: int
count_images
takes: nothing
returns: int