- run
go run .
- open new tab in command line and type:
curl -F '[email protected]' "localhost:8080/echo"
curl -F '[email protected]' "localhost:8080/invert"
curl -F '[email protected]' "localhost:8080/flatten"
curl -F '[email protected]' "localhost:8080/sum"
curl -F '[email protected]' "localhost:8080/multiply"
In main.go you will find a basic web server written in GoLang. It accepts a single request /echo. Extend the webservice with the ability to perform the following operations
Given an uploaded csv file
1,2,3
4,5,6
7,8,9
-
Echo (given)
- Return the matrix as a string in matrix format.
// Expected output 1,2,3 4,5,6 7,8,9
-
Invert
- Return the matrix as a string in matrix format where the columns and rows are inverted
// Expected output 1,4,7 2,5,8 3,6,9
-
Flatten
- Return the matrix as a 1 line string, with values separated by commas.
// Expected output 1,2,3,4,5,6,7,8,9
-
Sum
- Return the sum of the integers in the matrix
// Expected output 45
-
Multiply
- Return the product of the integers in the matrix
// Expected output 362880
The input file to these functions is a matrix, of any dimension where the number of rows are equal to the number of columns (square). Each value is an integer, and there is no header row. matrix.csv is example valid input.
Run web server
go run .
Send request
curl -F 'file=@/path/matrix.csv' "localhost:8080/echo"
- The solution runs
- The solution performs all cases correctly
- The code is easy to read
- The code is reasonably documented
- The code is tested
- The code is robust and handles invalid input and provides helpful error messages