programSubscribe
All the specifications for programSubscribe Websocket Method on Solana
Subscribe to a program to receive notifications when the lamports or data for an account owned by the given program changes.
Parameters required for this RPC call
The address of the program (pubkey), as a base-58 encoded string.
configuration object: This contains the following parameters, all are optional fields.
commitment: The commitment describes how finalized a block is at that point in time. Commitment levels processed, confirmed and finalized are supported, defaults to finalized.
filters: Filter results using various filter objects. The resultant account must meet ALL filter criteria to be included in the returned results
encoding: Encoding format for Account data
base58
is slow.jsonParsed
encoding attempts to use program-specific state parsers to return more human-readable and explicit account state dataIf
jsonParsed
is requested but a parser cannot be found, the field falls back to binary encoding, detectable when thedata
field is typestring
.Supports:
base58
,base64
,base64+zstd
,jsonParsed
{
"jsonrpc": "2.0",
"id": 1,
"method": "programSubscribe",
"params": [
"11111111111111111111111111111111",
{
"encoding": "base64",
"filters": [{ "dataSize": 80 }]
}
]
}
Notification Format:
The notification format is a single program account object as seen in the getProgramAccounts RPC HTTP method.
{
"jsonrpc": "2.0",
"method": "programNotification",
"params": {
"result": {
"context": {
"slot": 5208469
},
"value": {
"pubkey": "H4vnBqifaSACnKa7acsxstsY1iV1bvJNxsCY7enrd1hq",
"account": {
"data": [
"11116bv5nS2h3y12kD1yUKeMZvGcKLSjQgX6BeV7u1FrjeJcKfsHPXHRDEHrBesJhZyqnnq9qJeUuF7WHxiuLuL5twc38w2TXNLxnDbjmuR",
"base58"
],
"executable": false,
"lamports": 33594,
"owner": "11111111111111111111111111111111",
"rentEpoch": 636,
"space": 80
}
}
},
"subscription": 24040
}
}
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