grain/app/static/examples/config.example.yml

mongodb:
  uri: "mongodb://localhost:27017/" # MongoDB connection URI
  database: "grain" # Database name

server:
  port: ":8080" # Port for the server to listen on
  read_timeout: 10 # Read timeout in seconds
  write_timeout: 10 # Write timeout in seconds
  idle_timeout: 120 # Idle timeout in seconds
  max_connections: 100 # Maximum number of concurrent connections
  max_subscriptions_per_client: 10 # Maximum number of concurrent subscriptions per client

pubkey_whitelist:
  enabled: false
  pubkeys: #["3fe0ab6cbdb7ee27148202249e3fb3b89423c6f6cda6ef43ea5057c3d93088e4",
  #"cac0e43235806da094f0787a5b04e29ad04cb1a3c7ea5cf61edc1c338734082b"]
  npubs: #["npub18ls2km9aklhzw9yzqgjfu0anhz2z83hkeknw7sl22ptu8kfs3rjq54am44"]
kind_whitelist:
  enabled: false
  kinds: #[0, 1]
  #If pubkey_whitelist not enabled, domain_whitelist will be ignored
domain_whitelist:
  enabled: false
  domains: #["happytavern.co", "nostrplebs.com"]
rate_limit:
  ws_limit: 100 # Global rate limit for WebSocket messages (50 messages per second)
  ws_burst: 200 # Global burst limit for WebSocket messages (allows a burst of 100 messages)

  event_limit: 50 # Global rate limit for events (25 events per second)
  event_burst: 100 # Global burst limit for events (allows a burst of 50 events)
  req_limit: 50 # Added limit for REQ messages
  req_burst: 100 # Added burst limit for REQ messages

  max_event_size: 51200 # Global maximum event size in bytes (50Kb)
  kind_size_limits:
    - kind: 0
      max_size: 10240 # Maximum event size for kind 0 in bytes (10Kb)
    - kind: 1
      max_size: 25600 # Maximum event size for kind 1 in bytes (25Kb)

  category_limits: # Rate limits based on event categories
    regular:
      limit: 25 # Rate limit for regular events (50 events per second)
      burst: 50 # Burst limit for regular events (allows a burst of 100 events)
    replaceable:
      limit: 10 # Rate limit for replaceable events (10 events per second)
      burst: 20 # Burst limit for replaceable events (allows a burst of 20 events)
    parameterized_replaceable:
      limit: 5 # Rate limit for parameterized replaceable events (5 events per second)
      burst: 10 # Burst limit for parameterized replaceable events (allows a burst of 10 events)
    ephemeral:
      limit: 100 # Rate limit for ephemeral events (100 events per second)
      burst: 200 # Burst limit for ephemeral events (allows a burst of 200 events)

  kind_limits: # Specific rate limits for different kinds of events
    - kind: 0
      limit: 1 # Rate limit for events of kind 0 (1 event per second)
      burst: 5 # Burst limit for events of kind 0 (allows a burst of 5 events)
    - kind: 1
      limit: 25 # Rate limit for events of kind 1 (100 events per second)
      burst: 50 # Burst limit for events of kind 1 (allows a burst of 200 events)
    - kind: 3
      limit: 25 # Rate limit for events of kind 3 (25 events per second)
      burst: 50 # Burst limit for events of kind 3 (allows a burst of 50 events)