converting a Tensorflow model for Tensorflow.js (Warning, I'm a Tensorflow/ML noob)

I'm trying to convert and load a TensorFlow model into tensorflow.js

The model is saved:

saver.save(sess, checkpoint_path, global_step=model.global_step)


and potentially restored:

saver.restore(session, ckpt.model_checkpoint_path)


This (and similar lines) creates a directory structure:

model_tmp
  checkpoint
  model.ckpt-100.data-00000-of-00001
  model.ckpt-100.index
  model.ckpt-100.meta
  ...
  model.ckpt-500.meta


...So I should be able to convert to a JS model, right?

#TODO --output_node_names='???' \
tensorflowjs_converter \
    --input_format=tf_saved_model \
    --saved_model_tags=serve \
    model_tmp/model.ckpt-500 \
    model_web


Wrong! When I run the script above I get an error:

IOError: SavedModel file does not exist at: model_tmp/model.ckpt-500


I've tried model_tmp, model_tmp/checkpoint but neither of them work either.

Also, I'm not sure what to provide at output_node_names in the converter call.
You can build from source and use the summarize_graph tool which is distributed as a part of Tensorflow graph_transforms tools. Detailed docs are available here. Quick install:

First, make sure you have bazel build system installed (for MacOS):

brew install bazel


Next get Tensorflow sources, build and run summarize_graph:

git clone git@github.com:tensorflow/tensorflow.git
cd tensorflow
bazel build tensorflow/tools/graph_transforms:summarize_graph
bazel-bin/tensorflow/tools/graph_transforms/summarize_graph --in_graph=path/to/model_graphdef.pb


Note that summarize_graph requires GraphDef format as input.

If during the build attempt bazel can't find Xcode, configure it:

bazel clean --expunge 
sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -license
bazel clean --expunge