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v/examples/vweb/file_transform/vweb_example.v

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module main
import vweb
const port = 8082
struct App {
vweb.Context
}
fn main() {
vweb.run(&App{}, port)
}
pub fn (mut app App) index() vweb.Result {
return $vweb.html()
}
['/upload'; post]
pub fn (mut app App) upload() vweb.Result {
fdata := app.files['upfile']
data_rows := fdata[0].data.split('\n')
mut output_data := ''
for elem in data_rows {
delim_row := elem.split('\t')
output_data += '${delim_row[0]}\t${delim_row[1]}\t${delim_row[0].int() + delim_row[1].int()}\n'
}
output_data = output_data.all_before_last('\n')
println(output_data)
app.add_header('Content-Disposition', 'attachment; filename=results.txt')
app.send_response_to_client('application/octet-stream', output_data)
return $vweb.html()
}