Use local build of grpc-web

setup-grpc-web.md

Using a custom build of grpc-web in your project

Clone the repo

git clone git@github.com:grpc/grpc-web.git

Install the web plugin to generate the code

you might need sudo apt-get install libprotoc-dev

sudo make install-plugin - (this installs the protoc-gen-grpc-web)

You can now generate the code using protoc

Prepare the grpc-web runtime on your local machine

Install the latest grpc-web runtime as a local npm package by linking it

cd packages/grpc-web
npm install
npm run prepare
yarnk link

Add the runtime in your project

yarn link grpc-web