How to use deal filters
Your use case might demand very precise and dynamic control over a combination of deal parameters.
Lotus provides two IPC hooks allowing you to name a command to execute for every deal before the miner accepts it:
Filter
for storage deals.
RetrievalFilter
for retrieval deals.
The executed command receives a JSON representation of the deal parameters on standard input, and upon completion, its exit code is interpreted as:
0
: success, proceed with the deal.
non-0
: failure, reject the deal.
The most trivial filter rejecting any retrieval deal would be something like: RetrievalFilter = "/bin/false"
. /bin/false
is binary that immediately exits with a code of 1
.
This Perl script lets the miner deny specific clients and only accept deals that are set to start relatively soon.
You can also use a third party content policy framework like CIDgravity or bitscreen
by Murmuration Labs: