好吧，我认为这只是 protoc 中的一个错误.我是这样运行的:

Ok I think this is just a bug in protoc. I was running it like this:

protoc -I=../../protos/ ../../protos/foo.proto --js_out=import_style=typescript:. --grpc-web_out=import_style=typescript,mode=grpcweb:.

这会创建 foo_pb.d.ts 但它应该也创建 foo_pb.js.事实上，它为每条消息创建了单独的文件 - memory.js 和 empty.js.我通过运行以下命令修复"了它:

That creates foo_pb.d.ts but it should create foo_pb.js too. In fact it creates separate files for each message - memory.js and empty.js. I "fixed" it by running this command:

protoc -I=../../protos/ ../../protos/foo.proto --js_out=import_style=commonjs,binary:. --grpc-web_out=import_style=typescript,mode=grpcweb:.

然后生成了 foo_pb.js 文件，它还生成了 foo_pb.d.ts 文件.我知道对吧，WTF?

This then generated the foo_pb.js file, and it also generates the foo_pb.d.ts file. I know right, WTF?