Event Format
Events will be sent in batches in a JSON format. The structure of a Statsig Event sent will look like the following:
| Field | Type | Description |
|---|---|---|
| eventName | String | Name of the event provided |
| user | JSON | Statsig User Object (opens in a new tab) |
| userID | String | User ID provided |
| timestamp | Number | Timestamp in MS of the event |
| value | String | Value of the event provided |
| metadata | JSON | Custom Metadata provided |
| statsigMetadata | JSON | Metadata related to the logging of this event added by Statsig |
| timeUUID | String | UUID for the event |
| unitID | String | Unit ID of the exposure (e.g. userID, stableID, or the customID) |
Custom Event Formatting - logEvent
{
"eventName": "my_custom_event",
"user": {
"userID": "a_user",
"email": "a.user@email.com"
},
"userID": "a_user",
"timestamp": "1655231253265",
"statsigMetadata": {
...
},
"value": "a_custom_value",
"metadata": {
"key_a": "value_a",
"key_b": "123"
},
"timeUUID": "abd2a983-ec0f-11ec-917a-fb8cdaeda578"
}Feature Gate Exposure Formatting - checkGate
{
"eventName": "statsig::gate_exposure",
"user": { ... },
"userID": "a_user",
"timestamp": "1655231253265",
"statsigMetadata": { ... },
"value": "",
"metadata": {
"gate": "a_gate",
"gateValue": "false",
"ruleID": "default",
"reason": "Network",
"time": "1655231249644"
},
"timeUUID": "8d7c1040-ec11-11ec-g123-abe2c32fcf46",
"unitID": "userID"
}Dynamic Config Exposure Formatting - getConfig
{
"eventName": "statsig::config_exposure",
"user": { ... },
"userID": "a_user",
"timestamp": "1655231253265",
"statsigMetadata": { ... },
"value": "",
"metadata": {
"config": "a_config",
"ruleID": "default",
"reason": "Network",
"time": "1655231249644"
},
"timeUUID": "af379f60-ec11-22ad-8e0a-05c3ee70bd0c",
"unitID": "userID"
}Experiment Exposure Formatting - getExperiment
{
"eventName": "statsig::experiment_exposure",
"user": { ... },
"userID": "a_user",
"timestamp": "1655232119734",
"statsigMetadata": { ... },
"value": "",
"metadata": {
"config": "an_experiment",
"ruleID": "4SauZJcM1T7zNvh1igBjwE",
"reason": "Network",
"time": "1655231249644",
"experimentGroupName": "Control"
},
"timeUUID": "af379f61-ab22-11ec-8e0a-05c3ee70bd0c",
"unitID": "userID"
}Example Batch
[
{
"eventName": "page_view",
"user": {"userID": "user_1", "country": "US"},
"userID": "user_1",
"timestamp": 1644520566967,
"value": "example_value",
"metadata": {"page": "home_page"},
"statsigMetadata": {},
"timeUUID": "f4c414a0-8ab5-11ec-a8a3-0242ac120002"
},
{
"eventName": "statsig::gate_exposure",
"user": {"userID": "user_1", "country": "US"},
"userID": "user_1",
"timestamp": 1644520566968,
"value": "",
"metadata": {"gate": "test_gate", "gateValue": "true", "ruleID": "default"},
"statsigMetadata": {},
"timeUUID": "f4c414a0-8ab5-11ec-a8a3-0242ac120003",
"unitID": "userID"
},
{
"eventName": "statsig::experiment_exposure"
"user": {"userID": "user_1", "country": "US"},
"userID": "user_1",
"timestamp": 1644520566969,
"value": "",
"metadata": {
"config": "an_experiment", "ruleID": "4SauZJcM1T7zNvh1igBjwE", "reason": "Network", "time": "1655231249644", "experimentGroupName": "Control"
},
"statsigMetadata": {},
"timeUUID": "f4c414a0-8ab5-11ec-a8a3-0242ac120004",
"unitID": "userID"
}
]