[js] Add API for accessing metadata of a model's input/output #23937
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gyagp
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Mar 12, 2025
guschmue
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Mar 24, 2025
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Was looking forward to this for a long time! Fantastic! |
quic-zhaoxul
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Apr 17, 2025
…oft#23937) ### Description Add API for accessing metadata of a model's input/output. Currently, The implementation is only applied to web assembly backend and nodejs binding. For webgl, there is so far no plan to implement this API; for react-native, the implementation will be done later and is not included in this PR. #### Example usage: ```js const mySession = await ort.InferenceSession.create( ... ); console.log(`there are ${mySession.inputMetadata.length} inputs:`); for (let i = 0; i < mySession.inputMetadata.length; i++) { let info; if (mySession.inputMetadata[i].isTensor) { info = `tensor: ${mySession.inputMetadata[i].type}, shape: ${mySession.inputMetadata[i].shape}`; } else { info = `non-tensor`; } console.log(`input ${i}: ${mySession.inputMetadata[i].name}: ${info}`); } ``` possible output: ``` there are 1 inputs: input 0: input: tensor: float32, shape: [batch, 3, 224, 224] ``` Resolves: - microsoft#22682 - microsoft#22949
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Description
Add API for accessing metadata of a model's input/output.
Currently, The implementation is only applied to web assembly backend and nodejs binding. For webgl, there is so far no plan to implement this API; for react-native, the implementation will be done later and is not included in this PR.
Example usage:
possible output:
Resolves: