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How to stream, uncompress and decode a CSV file straight from a remote URL.
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| package main | |
| import ( | |
| "compress/gzip" | |
| "encoding/csv" | |
| "fmt" | |
| "io" | |
| "net/http" | |
| "os" | |
| ) | |
| func main() { | |
| resp, err := http.Get(os.Getenv("FILE_URL")) | |
| if err != nil { | |
| panic("couldn't read from url") | |
| } | |
| gzipReader, err := gzip.NewReader(resp.Body) | |
| if err != nil { | |
| panic("couldn't create gzip reader") | |
| } | |
| csvReader := csv.NewReader(gzipReader) | |
| for { | |
| record, err := csvReader.Read() | |
| if err == io.EOF { | |
| break | |
| } else if err != nil { | |
| panic("Error reading csv record: " + err.Error()) | |
| } | |
| // TODO do whatever you need with the record | |
| fmt.Println(record) | |
| } | |
| } |
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