Module api

Expand description

System API and low level functions for it.

Modules§

call: APIs to make and manage calls in the canister.
management_canister: Functions and types for calling the IC management canister.
stable: APIs to manage stable memory.

call_context_instruction_counter: Returns the number of WebAssembly instructions the canister has executed within the call context of the current Message execution since Call context creation.
caller: Returns the caller of the current call.
canister_balance: Gets the amount of funds available in the canister.
canister_balance128: Gets the amount of funds available in the canister.
canister_version: Gets the value of canister version.
cycles_burn: Burns cycles from the canister.
data_certificate: When called from a query call, returns the data certificate authenticating certified_data set by this canister.
id: Returns the canister id as a blob.
instruction_counter: Returns the number of instructions that the canister executed since the last entry point.
is_controller: Determines if a Principal is a controller of the canister.
performance_counter: Gets the value of specified performance counter.
print: Prints the given message.
set_certified_data: Sets the certified data of this canister.
time: Gets current timestamp, in nanoseconds since the epoch (1970-01-01)
trap: Traps with the given message.