csv_to_ndjson written in go

csv_to_ndjson.go

package main

import (
        "bufio"
        "encoding/csv"
        "encoding/json"
        "os"
)

func main() {
        file, err := os.Open("./in.csv")
        if err != nil {
                println("there is no in.csv")
                panic(err)
        }
        defer file.Close()
        rdr := csv.NewReader(bufio.NewReader(file))

        header, _ := rdr.Read()

        wf, err := os.Create("./out.ndjson")
        if err != nil {
                panic(err)
        }
        defer wf.Close()

        for {
                row, err := rdr.Read()
                if err != nil {
                        break
                }
                d := map[string]interface{}{}
                for i, key := range header {
                        d[key] = row[i]
                }
                b, _ := json.Marshal(d)
                _, err = wf.Write(b)
                if err != nil {
                        panic(err)
                }
                _, _ = wf.Write([]byte{'\n'})
        }
}