WSSET_FILTER

Drop non-matching events from the wire before delivery, reducing bandwidth (and billable messages). params is [selector, filterObject]. You can also set a filter at connect time with ?filter=<url-encoded-json> on the upgrade URL.

Request

{
  "method": "SET_FILTER",
  "params": [
    "solana@swaps",
    {
      "protocol": "raydium_cpmm",
      "user": [
        "a",
        "b"
      ]
    }
  ],
  "id": 1
}

Reply

{
  "result": null,
  "id": 1
}

Semantics

• String equality only; values must be strings or arrays of strings.
• Fields are AND'd; values within a field are OR'd.
• An event missing a filtered field is dropped. If every event of a block is dropped, the block is skipped for that client.
• Filters are scoped per explicit network@stream selector — wildcards always pass everything through.
• Top-level fields (block_num, network, module_hash) are not filterable — only keys inside events[*].