cod3rboy / grpc-file-upload

A demo gRPC application to upload files to server in client streaming mode.

GRPC File Upload

This application demonstrates client streaming and bidirectional streaming modes in gRPC. Server exposes RPC functions for uploading a file. Client uploads file by invoking these server functions.

RPC functions -

• UploadFile: Upload file using client streaming.
• UploadFileWithProgress: Upload file using client streaming and reports progress using server streaming.

Generating code from proto files

protoc --proto_path="./proto" --go_out="./gen/uploader" --go-grpc_out="./gen/uploader" --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative uploader.proto

Running server

go run ./cmd/server <flags>

CLI flags

Flag	Description	Usage	Default Value
port	server port	-port=<value>	8000
dir	directory which stores uploaded files	-dir=<path-to-dir>	tmp

Running client

go run ./cmd/client <flags>

CLI flags

Flag	Description	Usage	Default Value
file (required)	file to upload to server	-file=<path-to-file>	none
server	server address (host:port)	-server=<host:port>	localhost:8000
progress	display upload progress	-progress=<true|false>	false