shh_getFilterChanges

Polling method for whisper filters. Returns new messages since the last call of this method.

Note calling the shh_getMessages method, will reset the buffer for this method, so that you won't receive duplicate messages.

Parameters

1. QUANTITY - The filter id.

Example Parameters

params: [
  "0x7" // 7
]

Returns

Array - Array of messages received since last poll:

• hash: DATA, 32 Bytes (?) - The hash of the message.
• from: DATA, 60 Bytes - The sender of the message, if a sender was specified.
• to: DATA, 60 Bytes - The receiver of the message, if a receiver was specified.
• expiry: QUANTITY - Integer of the time in seconds when this message should expire (?).
• ttl: QUANTITY - Integer of the time the message should float in the system in seconds (?).
• sent: QUANTITY - Integer of the unix timestamp when the message was sent.
• topics: Array of DATA - Array of DATA topics the message contained.
• payload: DATA - The payload of the message.
• workProved: QUANTITY - Integer of the work this message required before it was send (?).

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_getFilterChanges","params":["0x7"],"id":73}'

// Result
{
  "id":1,
  "jsonrpc":"2.0",
  "result": [{
    "hash": "0x33eb2da77bf3527e28f8bf493650b1879b08c4f2a362beae4ba2f71bafcd91f9",
    "from": "0x3ec052fc33..",
    "to": "0x87gdf76g8d7fgdfg...",
    "expiry": "0x54caa50a", // 1422566666
    "sent": "0x54ca9ea2", // 1422565026
    "ttl": "0x64", // 100
    "topics": ["0x6578616d"],
    "payload": "0x7b2274797065223a226d657373616765222c2263686...",
    "workProved": "0x0"
    }]
}