Using the program

1. Open the terminal and navigate to the MEANT4-Task directory

2. Run 'make' in the terminal. You should see the following out put

go build factorial/factorial.go go build -o serverbin calculator/calculator_server/server.go go build cli/inputs.go go build -o grpcfactorial calculator/calculator_client/client.go (./serverbin) factorial server is up. 2021/11/06 20:14:15 server listening at 127.0.0.1:50051

3. Optionally, you can build the server and client binaries seperately by running the following commands.

'make server' 'make client'

You can then run the server (./serverbin) followed by the client (./grpcfactorial In a different terminal). The order matters. './serverbin' './grpcfactorial'

4. This will create two binaries named 'serverbin' and 'grpcfactorial' in the project-level directory and run the server on address 127.0.0.1:50051.

5. Open another terminal and run the 'grpcfactorial' binary with the '--inputs' flag set to 'integers' followed by a space-seperated list of the integers whose factorials you want to calculate as shown below.

./grpcfactorial --inputs integers 37 58 10000000000 5 6 7 8 1