pub trait TransactionContext {
// Required methods
fn get_state_entries(
&self,
addresses: &[String],
) -> Result<Vec<(String, Vec<u8>)>, WasmSdkError>;
fn set_state_entries(
&self,
entries: Vec<(String, Vec<u8>)>,
) -> Result<(), WasmSdkError>;
fn delete_state_entries(
&self,
addresses: &[String],
) -> Result<Vec<String>, WasmSdkError>;
fn add_event(
&self,
event_type: String,
attributes: Vec<(String, String)>,
data: &[u8],
) -> Result<(), WasmSdkError>;
// Provided methods
fn get_state(
&self,
addresses: &[String],
) -> Result<Vec<(String, Vec<u8>)>, WasmSdkError> { ... }
fn get_state_entry(
&self,
address: &str,
) -> Result<Option<Vec<u8>>, WasmSdkError> { ... }
fn set_state(
&self,
entries: HashMap<String, Vec<u8>>,
) -> Result<(), WasmSdkError> { ... }
fn set_state_entry(
&self,
address: String,
data: Vec<u8>,
) -> Result<(), WasmSdkError> { ... }
fn delete_state(
&self,
addresses: &[String],
) -> Result<Vec<String>, WasmSdkError> { ... }
fn delete_state_entry(
&self,
address: &str,
) -> Result<Option<String>, WasmSdkError> { ... }
}
Required Methods§
Sourcefn get_state_entries(
&self,
addresses: &[String],
) -> Result<Vec<(String, Vec<u8>)>, WasmSdkError>
fn get_state_entries( &self, addresses: &[String], ) -> Result<Vec<(String, Vec<u8>)>, WasmSdkError>
get_state_entries queries the validator state for data at each of the addresses in the given list. The addresses that have been set are returned.
§Arguments
addresses
- the addresses to fetch
Sourcefn set_state_entries(
&self,
entries: Vec<(String, Vec<u8>)>,
) -> Result<(), WasmSdkError>
fn set_state_entries( &self, entries: Vec<(String, Vec<u8>)>, ) -> Result<(), WasmSdkError>
set_state_entries requests that each address in the provided map be set in validator state to its corresponding value.
§Arguments
entries
- entries are a hashmap where the key is an address and value is the data
Sourcefn delete_state_entries(
&self,
addresses: &[String],
) -> Result<Vec<String>, WasmSdkError>
fn delete_state_entries( &self, addresses: &[String], ) -> Result<Vec<String>, WasmSdkError>
delete_state_entries requests that each of the provided addresses be unset in validator state. A list of successfully deleted addresses is returned.
§Arguments
addresses
- the addresses to delete
Sourcefn add_event(
&self,
event_type: String,
attributes: Vec<(String, String)>,
data: &[u8],
) -> Result<(), WasmSdkError>
fn add_event( &self, event_type: String, attributes: Vec<(String, String)>, data: &[u8], ) -> Result<(), WasmSdkError>
add_event adds a new event to the execution result for this transaction.
§Arguments
event_type
- This is used to subscribe to events. It should be globally unique and describe what, in general, has occured.attributes
- Additional information about the event that is transparent to the validator. Attributes can be used by subscribers to filter the type of events they receive.data
- Additional information about the event that is opaque to the validator.
Provided Methods§
Sourcefn get_state(
&self,
addresses: &[String],
) -> Result<Vec<(String, Vec<u8>)>, WasmSdkError>
👎Deprecated since 0.2.0: please use get_state_entry
or get_state_entries
instead
fn get_state( &self, addresses: &[String], ) -> Result<Vec<(String, Vec<u8>)>, WasmSdkError>
get_state_entry
or get_state_entries
insteadget_state queries the validator state for data at each of the addresses in the given list. The addresses that have been set are returned. get_state is deprecated, please use get_state_entry or get_state_entries instead
§Arguments
addresses
- the addresses to fetch
Sourcefn get_state_entry(
&self,
address: &str,
) -> Result<Option<Vec<u8>>, WasmSdkError>
fn get_state_entry( &self, address: &str, ) -> Result<Option<Vec<u8>>, WasmSdkError>
get_state_entry queries the validator state for data at the address given. If the address is set, the data is returned.
§Arguments
address
- the address to fetch
Sourcefn set_state(
&self,
entries: HashMap<String, Vec<u8>>,
) -> Result<(), WasmSdkError>
👎Deprecated since 0.2.0: please use set_state_entry
or set_state_entries
instead
fn set_state( &self, entries: HashMap<String, Vec<u8>>, ) -> Result<(), WasmSdkError>
set_state_entry
or set_state_entries
insteadset_state requests that each address in the provided map be set in validator state to its corresponding value. set_state is deprecated, please use set_state_entry to set_state_entries instead
§Arguments
entries
- entries are a hashmap where the key is an address and value is the data
Sourcefn set_state_entry(
&self,
address: String,
data: Vec<u8>,
) -> Result<(), WasmSdkError>
fn set_state_entry( &self, address: String, data: Vec<u8>, ) -> Result<(), WasmSdkError>
set_state_entry requests that the provided address is set in the validator state to its corresponding value.
§Arguments
address
- address of where to store the datadata
- payload is the data to store at the address
Sourcefn delete_state(
&self,
addresses: &[String],
) -> Result<Vec<String>, WasmSdkError>
👎Deprecated since 0.2.0: please use delete_state_entry
or delete_state_entries
instead
fn delete_state( &self, addresses: &[String], ) -> Result<Vec<String>, WasmSdkError>
delete_state_entry
or delete_state_entries
insteaddelete_state requests that each of the provided addresses be unset in validator state. A list of successfully deleted addresses is returned. delete_state is deprecated, please use delete_state_entry to delete_state_entries instead
§Arguments
addresses
- the addresses to delete
Sourcefn delete_state_entry(
&self,
address: &str,
) -> Result<Option<String>, WasmSdkError>
fn delete_state_entry( &self, address: &str, ) -> Result<Option<String>, WasmSdkError>
delete_state_entry requests that the provided address be unset in validator state. A list of successfully deleted addresses is returned.
§Arguments
address
- the address to delete