Module ic_cdk::api

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.

Functions

• 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.