Thanks for your answer J Decker. The first working solution that I came up with doesn't reuse any of your code, but your answer was helpful to get me past some small hurdles. I have some working code available at this gist (https://gist.github.com/jimlloyd/d26413ee9aac403a85f6329e2314d003). > > > Basically this is a JSON-like parser that results in various types of > values to JS... (not just a specific neural network interface) > > > > I setup a JS->Native code object, that has the access methods to the native > module, and some data tracking stuff.. > > > > This is 'objects' which is an array of values which are in JS, but are > referenced from the C++ code via an index number into the array.. > > > > > https://github.com/d3x0r/jsox-wasm/blob/master/simple_js.c#L168 > > > > These are examples that create a new array, or object... further down more > elemental objects are created and pushed into the value array... > > > https://github.com/d3x0r/jsox-wasm/blob/master/simple_js.c#L65 > > > > > (Set object by Index) - assign another referenced object into another.... > > > https://github.com/d3x0r/jsox-wasm/blob/master/simple_js.c#L282 > > > > > After playing with this for a while, I really gave up on this approach for my > own purposes, the overhead of creating JS objects from WASM during the > process of parsing JSOX(JSON) was much slower than just doing it in JS > natively... > > > > Also you don't really NEED a preload code.. you can just have the require in > an init... which can setup the interface area between the native and JS > code... > > > > > > > > > On Thu, Mar 4, 2021 at 10:45 PM Jim Lloyd <[email protected] > (mailto:[email protected])> wrote: > > > > > > I have a body of C++ code that I have successfully compiled with em++. Many > > of the unit tests run. I am unclear now how to achieve my end goal, which > > is to use this code in a node/express server that imports > > @tensorflow/tfjs-node and utilizes that module to perform Tensorflow > > predictions. > > > > > > > > I believe the general outline will require that I inject JavaScript code > > to load the TensorFlow module, probably using `--pre-js <file>`. If > > `--pre-js` is correct, what should the contents of `<file>` be? One line > > should be this: > > > > > > > > > > const tf = require('@tensorflow/tfjs-node'); > > > > > > > > My C++ code will at some point do something like this: > > > > > > > > > > > > > > EM_JS(val, loadModel, (string modelUrl), { > > > > > > return await tf.loadGraphModel(modelUrl); > > > > }); > > > > val model = loadModel("http://...";) > > > > > > Later in my code I will pass the model and a tensor into another EM_JS > > function to do the prediction, but I expect that once I understand the > > above I will be able figure out the rest. > > > > > > > > How do I arrange for the tf module reference to be available within the > > EM_JS definition of the loadModel function? > > > > > > > > > > Of course, if there is already some demo somewhere that does something > > similar, a link to it may be all that I need. So far I have not found it > > after a couple hours of searching. > > > > > > > > Thanks. > > > > > > > > > > > > > > > > > > > > -- > > > > You received this message because you are subscribed to the Google Groups > > "emscripten-discuss" group. > > > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected] > > (mailto:[email protected]). > > > > To view this discussion on the web visit > > https://groups.google.com/d/msgid/emscripten-discuss/2a618a23-fd04-462e-bec7-dd37506b3d89n%40googlegroups.com > > > > (https://groups.google.com/d/msgid/emscripten-discuss/2a618a23-fd04-462e-bec7-dd37506b3d89n%40googlegroups.com?utm_medium=email&utm_source=footer). > > > > > > -- > > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > (mailto:[email protected]). > > To view this discussion on the web visit > https://groups.google.com/d/msgid/emscripten-discuss/CAA2GJqUru_AnbvbJog9ibrw8n8dqy2OwW4q4%2Bz5KD4Y7CPAo4Q%40mail.gmail.com > > (https://groups.google.com/d/msgid/emscripten-discuss/CAA2GJqUru_AnbvbJog9ibrw8n8dqy2OwW4q4%2Bz5KD4Y7CPAo4Q%40mail.gmail.com?utm_medium=email&utm_source=footer). >
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