Sui Events API

Sui Full nodes support publish / subscribe using JSON-RPC notifications via the WebSocket API. You can use this service with Sui client to filter and subscribe to a real-time event stream generated from Move or from the Sui network.

The client provides an event filter to limit the scope of events. Sui returns a notification with the event data and subscription ID for each event that matches the filter.

Event types

A Sui node emits the following types of events:

Move event

Move calls emit Move events. You can define custom events in Move contracts.

Attributes

Move event attributes:

  • packageId
  • transactionModule
  • sender
  • type
  • fields
  • bcs

Example Move event

{
  "moveEvent": {
    "packageId": "<PACKAGE-ID>",
    "transactionModule": "nft",
    "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
    "type": "<PACKAGE-ID>::nft::MintNFTEvent",
    "fields": {
      "creator": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
      "name": "NFT",
      "object_id": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
    },
    "bcs": "SXkTpH3AAoqF8kxw2CWZG3HGAAFwYT9PF64TY/en5yUdqrXFsG9owQtFeGFtcGxlIE5GVA=="
  }
}

Publish event

Publish events occur when you publish a package to the network.

Attributes

Publish event attributes:

  • sender
  • packageId

Example publish event

{
  "publish": {
    "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
    "packageId": "0x5f01a29887a1d95e5b548b616da63b0ce07d816e89ef7b9a382177b4422bbaa2"
  }
}

Transfer object event

Transfer object events occur when you transfer an object from one address to another.

Attributes

Transfer event attributes:

  • packageId
  • transactionModule
  • sender
  • recipient
  • objectId
  • version
  • type

Example transfer object event

{
  "transferObject": {
    "packageId": "0x0000000000000000000000000000000000000000000000000000000000000002",
    "transactionModule": "native",
    "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
    "recipient": {
      "AddressOwner": "0xa3c00467938b392a12355397bdd3d319cea5c9b8f4fc9c51b46b8e15a807f030"
    },
    "objectId": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5",
    "version": 1,
    "type": "Coin"
  }
}

Delete object event

Delete object events occur when you delete an object.

Attributes

  • packageId
  • transactionModule
  • sender
  • objectId

Example delete object event

{
  "deleteObject": {
    "packageId": "0x5f01a29887a1d95e5b548b616da63b0ce07d816e89ef7b9a382177b4422bbaa2",
    "transactionModule": "discount_coupon",
    "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
    "objectId": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
  }
}

New object event

New object events occur when you create an object on the network.

Attributes

New object event attributes:

  • packageId
  • transactionModule
  • sender
  • recipient
  • objectId

Example new object event

{
  "newObject": {
    "packageId": "<PACKAGE-ID>",
    "transactionModule": "nft",
    "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
    "recipient": {
      "AddressOwner": "0xa3c00467938b392a12355397bdd3d319cea5c9b8f4fc9c51b46b8e15a807f030"
    },
    "objectId": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
  }
}

Epoch change event

Epoch change events occur when an epoch ends and a new epoch starts.

Attributes

None, Epoch change events do not have any attributes. The event includes an Epoch ID associated with the epochChange.

Example epoch change event

{
  "epochChange": 20
}

Checkpoint event

A checkpoint event occurs for each checkpoint.

Attributes

None, Checkpoint events do not have any attributes. The event includes the Checkpoint sequence number associated with the checkpoint.

Example checkpoint event

{
  "checkpoint": 10
}

Sui event query criteria

You can use the EventQuery criteria object to query a Sui node and retrieve events that match query criteria.

QueryDescriptionJSON-RPC Parameter Example
AllAll events{"All"}
TransactionEvents emitted from the specified transaction.{"Transaction":"DGUe2TXiJdN3FI6MH1FwghYbiHw+NKu8Nh579zdFtUk="}
MoveModuleEvents emitted from the specified Move module{"MoveModule":{"package":"", "module":"nft"}}
MoveEventMove struct name of the event{"MoveEvent":"::nft::MintNFTEvent"}
EventTypeType of event described in Events section{"EventType": "NewObject"}
SenderQuery by sender address{"Sender":"0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106"}
RecipientQuery by recipient{"Recipient":{"AddressOwner":"0xa3c00467938b392a12355397bdd3d319cea5c9b8f4fc9c51b46b8e15a807f030"}}
ObjectReturn events associated with the given object{"Object":"0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"}
TimeRangeReturn events emitted in [start_time, end_time] interval{"TimeRange":{"startTime":1669039504014, "endTime":1669039604014}}

Pagination

The Event Query API provides cursor-based pagination to make it easier to work with large result sets. You can provide a cursor parameter in paginated query to indicate the starting position of the query. The query returns the number of results specified by limit, and returns the next_cursor value when there are additional results. The maximum limit is 1000 per query.

The following examples demonstrate how to create queries that use pagination for the results.

1. Get all events an nft module emits, in descending time order

Request

curl --location --request POST '127.0.0.1:9000' \
--header 'Content-Type: application/json' \
--data-raw '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sui_getEvents",
  "params": [
    {"MoveModule":{"package":"<PACKAGE-ID>", "module":"nft"}},
    null,
    null,
    true
  ]
}'

Response

{
    "jsonrpc": "2.0",
    "result": {
        "data": [
            {
                "timestamp": 1666699837426,
                "txDigest": "cZXsToU6r0Uia6HIAwvr1eMlGsrg6b9+2oYZAskJ0wc=",
                "id": {
                    "txSeq": 1001,
                    "eventSeq": 1,
                },
                "event": {
                    "moveEvent": {
                        "packageId": "<PACKAGE-ID>",
                        "transactionModule": "nft",
                        "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                        "type": "<PACKAGE-ID>::nft::MintNFTEvent",
                        "fields": {
                            "creator": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                            "name": "NFT",
                            "object_id": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
                        },
                        "bcs": "LugLSi0gM2XfvWipCorZoNyhkVX+1JBtcbilg//9jpVnYCe2u4HXzwtFeGFtcGxlIE5GVA=="
                    }
                }
            },
            {
                "timestamp": 1666699837426,
                "txDigest": "cZXsToU6r0Uia6HIAwvr1eMlGsrg6b9+2oYZAskJ0wc=",
                "id": {
                    "txSeq": 1001,
                    "eventSeq": 0,
                },
                "event": {
                    "newObject": {
                        "packageId": "<PACKAGE-ID>",
                        "transactionModule": "nft",
                        "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                        "recipient": {
                            "AddressOwner": "0xa3c00467938b392a12355397bdd3d319cea5c9b8f4fc9c51b46b8e15a807f030"
                        },
                        "objectId": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
                    }
                }
            },
            {
                "timestamp": 1666698739180,
                "txDigest": "WF2V6FM6y/kpAgRqzsQmR/osy4pmTgVVbE6qvSJxWh4=",
                "id": {
                    "txSeq": 998,
                    "eventSeq": 1,
                },
                "event": {
                    "moveEvent": {
                        "packageId": "<PACKAGE-ID>",
                        "transactionModule": "nft",
                        "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                        "type": "<PACKAGE-ID>::nft::MintNFTEvent",
                        "fields": {
                            "creator": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                            "name": "NFT",
                            "object_id": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
                        },
                        "bcs": "1WV89qyrqVjFsB7AUW9PDax3x9L+1JBtcbilg//9jpVnYCe2u4HXzwtFeGFtcGxlIE5GVA=="
                    }
                }
            },
            {
                "timestamp": 1666698739180,
                "txDigest": "WF2V6FM6y/kpAgRqzsQmR/osy4pmTgVVbE6qvSJxWh4=",
                "id": {
                    "txSeq": 998,
                    "eventSeq": 0,
                },
                "event": {
                    "newObject": {
                        "packageId": "<PACKAGE-ID>",
                        "transactionModule": "nft",
                        "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                        "recipient": {
                            "AddressOwner": "0xa3c00467938b392a12355397bdd3d319cea5c9b8f4fc9c51b46b8e15a807f030"
                        },
                        "objectId": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
                    }
                }
            }
        ],
        "nextCursor": null
    },
    "id": 1
}

2. Get all MintNFTEvent events

Request

curl --location --request POST '127.0.0.1:9000' \
--header 'Content-Type: application/json' \
--data-raw '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sui_getEvents",
  "params": [
    {"MoveEvent":"<PACKAGE-ID>::nft::MintNFTEvent"},
    null,
    null,
    "Ascending"
  ]
}'

Response

{
    "jsonrpc": "2.0",
    "result": {
        "data": [
            {
                "timestamp": 1666699837426,
                "txDigest": "cZXsToU6r0Uia6HIAwvr1eMlGsrg6b9+2oYZAskJ0wc=",
                "id": {
                    "txSeq": 1001,
                    "eventSeq": 1,
                },
                "event": {
                    "moveEvent": {
                        "packageId": "<PACKAGE-ID>",
                        "transactionModule": "nft",
                        "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                        "type": "<PACKAGE-ID>::nft::MintNFTEvent",
                        "fields": {
                            "creator": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                            "name": "NFT",
                            "object_id": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
                        },
                        "bcs": "LugLSi0gM2XfvWipCorZoNyhkVX+1JBtcbilg//9jpVnYCe2u4HXzwtFeGFtcGxlIE5GVA=="
                    }
                }
            },
            {
                "timestamp": 1666698739180,
                "txDigest": "WF2V6FM6y/kpAgRqzsQmR/osy4pmTgVVbE6qvSJxWh4=",
                "id": {
                    "txSeq": 998,
                    "eventSeq": 1,
                },
                "event": {
                    "moveEvent": {
                        "packageId": "<PACKAGE-ID>",
                        "transactionModule": "nft",
                        "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                        "type": "<PACKAGE-ID>::nft::MintNFTEvent",
                        "fields": {
                            "creator": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                            "name": "NFT",
                            "object_id": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
                        },
                        "bcs": "1WV89qyrqVjFsB7AUW9PDax3x9L+1JBtcbilg//9jpVnYCe2u4HXzwtFeGFtcGxlIE5GVA=="
                    }
                }
            }
        ],
        "nextCursor": null
    },
    "id": 1
}

3. Get all events and return 2 items per page in descending time order

Request

curl --location --request POST '127.0.0.1:9000' \
--header 'Content-Type: application/json' \
--data-raw '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sui_getEvents",
  "params": [
    "All",
    null,
    2,
    "Ascending"
  ]
}'

Response

{
    "jsonrpc": "2.0",
    "result": {
        "data": [
            {
                "timestamp": 1666698739180,
                "txDigest": "WF2V6FM6y/kpAgRqzsQmR/osy4pmTgVVbE6qvSJxWh4=",
                "id": {
                    "txSeq": 998,
                    "eventSeq": 0,
                },
                "event": {
                    "newObject": {
                        "packageId": "<PACKAGE-ID>",
                        "transactionModule": "nft",
                        "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                        "recipient": {
                            "AddressOwner": "0xa3c00467938b392a12355397bdd3d319cea5c9b8f4fc9c51b46b8e15a807f030"
                        },
                        "objectId": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
                    }
                }
            },
            {
                "timestamp": 1666698739180,
                "txDigest": "WF2V6FM6y/kpAgRqzsQmR/osy4pmTgVVbE6qvSJxWh4=",
                "id": {
                    "txSeq": 998,
                    "eventSeq": 1,
                },
                "event": {
                    "moveEvent": {
                        "packageId": "<PACKAGE-ID>",
                        "transactionModule": "nft",
                        "sender": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                        "type": "<PACKAGE-ID>::nft::MintNFTEvent",
                        "fields": {
                            "creator": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106",
                            "name": "NFT",
                            "object_id": "0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"
                        },
                        "bcs": "1WV89qyrqVjFsB7AUW9PDax3x9L+1JBtcbilg//9jpVnYCe2u4HXzwtFeGFtcGxlIE5GVA=="
                    }
                }
            }
        ],
        "nextCursor": 3
    },
    "id": 1
}

Subscribe to Sui events

When you subscribe to the events described in the preceding sections, you can apply event filters to match the events you want to filter.

Event filters

You can use EventFilter to filter the events included in your subscription to the event stream. EventFilter supports filtering on one attribute or a combination of attributes.

List of attributes that support filters

FilterDescriptionApplicable to Event TypeJSON-RPC Parameter Example
PackageMove package IDMoveEvent
Publish
TransferObject
DeleteObject
NewObject
{"Package":"<PACKAGE-ID>"}
ModuleMove module nameMoveEvent
TransferObject
DeleteObject
NewObject
{"Module":"nft"}
MoveEventTypeMove event type defined in the move codeMoveEvent{"MoveEventType":"<PACKAGE-ID>::nft::MintNFTEvent"}
MoveEventFieldFilter using the data fields in the move event objectMoveEvent{"MoveEventField":{ "path":"/name", "value":"NFT"}}
SenderAddressAddress that started the transactionMoveEvent
Publish
TransferObject
DeleteObject
NewObject
{"SenderAddress": "0x008e9c621f4fdb210b873aab59a1e5bf32ddb1d33ee85eb069b348c234465106"}
EventTypeType of event described in the Events sectionMoveEvent
Publish
TransferObject
DeleteObject
NewObject
EpochChange
Checkpoint
{"EventType":"Publish"}
ObjectIdObject IDTransferObject
DeleteObject
NewObject
{"ObjectId":"0x727b37454ab13d5c1dbb22e8741bff72b145d1e660f71b275c01f24e7860e5e5"}

Combining filters

Sui provides a few operators for combining filters:

OperatorDescriptionJSON-RPC Parameter Example
AndCombine two filters; behaves the same as boolean And operator{"And":[{"Package":"<PACKAGE-ID>"}, {"Module":"nft"}]}
OrCombine two filters; behaves the same as boolean Or operator{"Or":[{"Package":"<PACKAGE-ID>"}, {"Package":"0x1"}]}
AllCombine a list of filters; returns true if all filters match the event{"All":[{"EventType":"MoveEvent"}, {"Package":"<PACKAGE-ID>"}, {"Module":"nft"}]}
AnyCombine a list of filters; returns true if any filter matches the event{"Any":[{"EventType":"MoveEvent"}, {"EventType":"TransferObject"}, {"EventType":"DeleteObject"}]}

Example using a combined filter

The following example demonstrates how to subscribe to Move events (MoveEvent) that a <PACKAGE-ID>::nft package emits:

>> {"jsonrpc":"2.0", "id": 1, "method": "sui_subscribeEvent", "params": [{"All":[{"EventType":"MoveEvent"}, {"Package":"<PACKAGE-MODULE-ID>"}, {"Module":"nft"}]}]}
<< {"jsonrpc":"2.0","result":3121662727959200,"id":1}

To unsubscribe from this stream, use:

>> {"jsonrpc":"2.0", "id": 1, "method": "sui_unsubscribeEvent", "params": [3121662727959200]}
<< {"jsonrpc":"2.0","result":true,"id":1}