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66 lines
1.5 KiB
66 lines
1.5 KiB
package main
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import (
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"context"
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"fmt"
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"net/url"
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"os"
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"io/ioutil"
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"net/http"
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"github.com/tencentyun/cos-go-sdk-v5"
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"github.com/tencentyun/cos-go-sdk-v5/debug"
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)
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func main() {
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u, _ := url.Parse("https://test-1259654469.cos.ap-guangzhou.myqcloud.com")
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b := &cos.BaseURL{BucketURL: u}
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c := cos.NewClient(b, &http.Client{
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Transport: &cos.AuthorizationTransport{
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SecretID: os.Getenv("COS_SECRETID"),
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SecretKey: os.Getenv("COS_SECRETKEY"),
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Transport: &debug.DebugRequestTransport{
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RequestHeader: true,
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// Notice when put a large file and set need the request body, might happend out of memory error.
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RequestBody: false,
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ResponseHeader: true,
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ResponseBody: false,
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},
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},
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})
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opt := &cos.ObjectSelectOptions{
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Expression: "Select * from COSObject",
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ExpressionType: "SQL",
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InputSerialization: &cos.SelectInputSerialization{
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CSV: &cos.CSVInputSerialization{
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FileHeaderInfo: "IGNORE",
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},
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},
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OutputSerialization: &cos.SelectOutputSerialization{
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CSV: &cos.CSVOutputSerialization{
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RecordDelimiter: "\n",
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},
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},
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RequestProgress: "TRUE",
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}
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res, err := c.Object.Select(context.Background(), "test.csv", opt)
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if err != nil {
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panic(err)
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}
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defer res.Close()
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data, err := ioutil.ReadAll(res)
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if err != nil {
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panic(err)
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}
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fmt.Printf("data: %v\n", string(data))
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resp, _ := res.(*cos.ObjectSelectResponse)
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fmt.Printf("data: %+v\n", resp.Frame)
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// Select To File
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_, err = c.Object.SelectToFile(context.Background(), "test.csv", "./test.csv", opt)
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if err != nil {
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panic(err)
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}
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}
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