Triggers

Trigger types

Triggers monitor for onchain changes and initiate notifications when particular conditions are met. Currently, The following trigger types are support

• Poll Function

• Onchain Event

Trigger Type: Poll Function

The Poll Function trigger type will periodically poll a function of a contract. This trigger type has 2 modes, 1. Always trigger, or 2. Trigger based on simple conditional logic. Here are some examples of use cases for this trigger type:

• Get a notification when the balance of address or keeper

• Get a notification when your health ratio on AAVE is below a threshold

• Get a notification when the onchain spot price of a token is above or below a value

Poll Functions have the following configuration options:

Configuration	Info
Network	Desired Network
Contract Address	Address of the contract from which the view function will be called. Note: Currently, only one address is supported per trigger. Multiple addresses will be supported in the future.
Poll Period	Poll period in blocks which the function will be called and the condition tested.
ABI	The abi will be fetched from the explorer though if the contract is not verified users can manually enter the abi as a JSON string.
Function Name	The function the trigger will poll
Trigger On	Always or Conditional. If "Always" is selected, the trigger will fire every time. This is useful for periodic notification. If "Conditional" is selected, the user must configure the condition that needs to be tested.
Condition	Condition Options: - Greater than (>) - Greater than or equal to (>=) - Less than (<) - Less than or equal to (<=) - Equal to The test structure: <Argument> <Condition> <Constant> If the test returns true, the trigger will fire and initiate a notification.
Argument	This is the argument of the function response that will be tested. The Argument is on the LHS of the test.
Argument Decimals	Decimal places of the argument for convenience.
Compare Value	This is a constant value the argument response will be tested against. This is the RHS of the test.

Trigger Type: Onchain Event

An Onchain Event trigger type will monitor the blockchain for a particular event. The trigger has 2 modes, 1. always trigger, or 2. trigger based on simple conditional logic. Here are some example use cases for this trigger type:

• Get a notification when an account has been liquidated on AAVE or another lender

• Get a notification when privileged functions, such as governance functions are called

• Get a notification for every harvest of a vault and report the gains

An Onchain Event trigger type has the following configuration options:

Configuration	Info
Network	Desired Network
Contract Address	Address of the contract from which the event/log is emitted. For example, the "StrategyReported" event from a Yearn V2 vault contract.
ABI	The ABI will be fetched from the explorer though if the contract is not verified users can manually enter the ABI as a JSON string.
Event	The name of the event the trigger will monitor for.
Trigger On	Always or Conditional. If "Always" is selected, the trigger will fire every time the event is emitted. This is useful for periodic notification. If "Conditional" is selected, the user must configure the condition that needs to be tested.
Condition	Condition Options: - Greater than (>) - Greater than or equal to (>=) - Less than (<) - Less than or equal to (<=) - Equal to The test structure: <Parameter> <Condition> <Constant> If the test returns true, the trigger will fire and initiate a notification.
Parameter	This is the parameter of the event that will be tested. The parameter is on the LHS of the test.
Paramter Decimals	Decimal places of the paramter for convenience.
Compare Value	This is a constant value the event parameter will be tested against. This is the RHS of the test.