Indexing Bigmap Update
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The decorator can be used to mark an indexer method that will be listening for when a value in a bigmap stored with the contract changes.
When a bigmap change is detected on an indexed contract, the method will be invoked with detailed information about the change.
The following parameters will be passed to the indexing method:
key
The changed key in the bigmap. The exact type will depend on the code of the contract.
value
The new value (or null
, if the item was removed). The exact type will depend on the code of the contract.
dbContext
indexingContext
The following code will print the value of the property bar
every time the contract's bigmap called foo
is updated:
The to store data to.
The with additional information about the change.