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UDM Events Model
An event in Flipside's data model represents the distillation of all interactions that occur within a transaction. An event could range from a simple transfer between two parties to more complex smart contract calls.
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UDM Event Model
The event model is represented for each chain as a single table. For example ""ethereum.udm_events". The event model can conceptually be broken down into 2 core components, parent context data corresponding to the event and the event data itself.
Parent Context Data
Depending on the chain, a single transaction may consist of several "child" events.
To consistently represent the 1-to-many relationship, you will see 1 row that represents each transaction (including the fee for issuing the transaction) and then 1 or more rows representing all other events that are generated by this transaction.
All of these rows are grouped by their parent transaction metadata:
Block Context:
The following block-level metadata allows for block-level grouping of events.
Field
​
block_timestamp
UTC timestamp when the block was confirmed.
block_number
The block height.
Transaction Context:
Field
​
tx_id
A unique identifier of the transaction, typically a transaction hash.
tx_type
Transaction type is used to distinguish the top-level transaction type, e.g. reward distribution, delegation, validator creation, or any smart contract function call on a chain like Ethereum.
tx_from
The address that initiated the transaction.
tx_to
The address of the transaction recipient.
tx_fee
The decimal adjusted fee associated with the transaction.
tx_fee_usd
The USD equivalent value of fee at transaction time.
When you are looking at more complicated behaviors, you may want to filter by particular tx_type first, then look at the "child" events for all transactions in this subset.
Note: On Ethereum, the tx data is broken out into its own separate table. All other chains follow a 1 table rule for the Events data model. Check-out the specific Ethereum documentation for more details there.
Event Data
Field
Description
event_from
The initiator of the event.
event_to
The recipient of the event.
event_type
The type of event, specific to each blockchain, for example, "transfer", "reward", "stake", "mint", etc.
event_currency
If applicable, the on-chain asset involved in the event.
event_amount
If applicable, the decimal adjusted amount involved in the event (this is typically present when the event_type is a "transfer")
event_amount_usd
If applicable, the USD equivalent value sent at transaction time (this is typically present when a market exists for the event_currency involved)
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