make
make build
make test
make clean
curl -F 'file=@/path/to/matrix.csv' "localhost:8080/echo"
curl -F 'file=@/path/to/matrix.csv' "localhost:8080/invert"
curl -F 'file=@/path/to/matrix.csv' "localhost:8080/flatten"
curl -F 'file=@/path/to/matrix.csv' "localhost:8080/sum"
curl -F 'file=@/path/to/matrix.csv' "localhost:8080/multiply"