Good day I was wondering if there s a way within an Op to ge

Question

Good day I was wondering if there s a way within an Op to get the key s of the input Asset s for that Op

claire · Answer

Hi Simon It is possible within an asset to get the upstream asset keys Are you referring to how to get the input assets for an op within a graph backed asset

Simon · Answer

< claire> yeah correct Trying get the Asset key of the Asset that s the input to an Op that s part of a graph backed Asset

claire · Answer

Not a built in way but you could do ```dep node handles by asset key = context job def asset layer dependency node handles by asset key dep asset keys = k for k v in dep node handles by asset key items if context op handle in v ```

claire · Answer

The above code snippet is untested but basically ` dependency node handles by asset key` maps all input asset keys to the ops within the graph that rely on it not just direct downstream dependencies but all dependencies within the graph Then you can filter out which input asset keys the current node relies on by checking if the current op is in the downstream deps for a given asset key

Simon · Answer

< claire> thanks for the suggestion +1 I ll give that a try