将音频/视频文件传递给API

huangapple
go评论130阅读模式
英文:

Passing Audio/ Video File to API

问题

我正在尝试使用Soundcloud API（https://developers.soundcloud.com/docs/api/reference#tracks）将音频文件上传到Soundcloud。我必须传递文件的参数需要"音频文件的二进制数据"，但我不确定如何在Go中加载这样的数据。

我的当前代码如下，但是音频文件当然无法正确发送。

  1. buf := new(bytes.Buffer)
  2. w := multipart.NewWriter(buf)
  4. label, err := w.CreateFormField("oauth_token")
  5. if err != nil {
  6.     return err
  7. }
  8. label.Write([]byte(c.Token.AccessToken))
  10. fw, err := w.CreateFormFile("upload", "platform/young.mp3")
  11. if err != nil {
  12.     return err
  13. }
  14. fd, err := os.Open("platform/young.mp3")
  15. if err != nil {
  16.     return err
  17. }
  18. defer fd.Close()
  19. _, err = io.Copy(fw, fd)
  20. if err != nil {
  21.     return err
  22. }
  23. w.Close()
  24. req, err := http.NewRequest("POST", "https://api.soundcloud.com/tracks.json", buf)
  25. if err != nil {
  26.     return err
  27. }
  28. req.Header.Set("Content-Type", w.FormDataContentType())
  29. req.SetBasicAuth("email@email.com", "password")
  31. fmt.Println(req.Form)
  33. res, err := c.Client.Do(req)
  34. if err != nil {
  35.     return err
  36. }
英文:

I'm trying to use the Soundcloud API (https://developers.soundcloud.com/docs/api/reference#tracks) to upload an audio file to Soundcloud. The parameter I must pass the file in requires "binary data of the audio file" and I'm unsure how to load such a thing in Go.

My current code is as follows, but the audio file of course does not send properly.

  1. buf := new(bytes.Buffer)
  2. w := multipart.NewWriter(buf)
  4. label, err := w.CreateFormField("oauth_token")
  5. if err != nil {
  6. 	return err
  7. }
  8. label.Write([]byte(c.Token.AccessToken))
  10. fw, err := w.CreateFormFile("upload", "platform/young.mp3")
  11. if err != nil {
  12. 	return err
  13. }
  14. fd, err := os.Open("platform/young.mp3")
  15. if err != nil {
  16. 	return err
  17. }
  18. defer fd.Close()
  19. _, err = io.Copy(fw, fd)
  20. if err != nil {
  21. 	return err
  22. }
  23. w.Close()
  24. req, err := http.NewRequest("POST", "https://api.soundcloud.com/tracks.json", buf)
  25. if err != nil {
  26. 	return err
  27. }
  28. req.Header.Set("Content-Type", w.FormDataContentType())
  29. req.SetBasicAuth("email@email.com", "password")
  31. fmt.Println(req.Form)
  33. res, err := c.Client.Do(req)
  34. if err != nil {
  35. 	return err
  36. }

答案1

得分: 1

我还没有测试下面的代码，因为我没有有效的Oauth令牌，但它可能会帮助你找到正确的方向。

  1. package main
  3. import (
  4. 	"bytes"
  5. 	"fmt"
  6. 	"io"
  7. 	"log"
  8. 	"mime/multipart"
  9. 	"net/http"
  10. 	"os"
  11. 	"path/filepath"
  12. )
  14. func main() {
  15. 	uri := "https://api.soundcloud.com/tracks.json"
  16. 	params := map[string]string{
  17. 		"oauth_token":    "************",
  18. 		"track[title]":   "Test Track",
  19. 		"track[sharing]": "public",
  20. 	}
  21. 	trackData := "track[asset_data]"
  22. 	path := "test_track.mp3"
  24. 	file, err := os.Open(path)
  25. 	if err != nil {
  26. 		log.Fatal(err)
  27. 	}
  28. 	defer file.Close()
  30. 	body := &bytes.Buffer{}
  31. 	writer := multipart.NewWriter(body)
  32. 	part, err := writer.CreateFormFile(trackData, filepath.Base(path))
  33. 	if err != nil {
  34. 		log.Fatal(err)
  35. 	}
  36. 	_, err = io.Copy(part, file)
  38. 	for key, val := range params {
  39. 		err := writer.WriteField(key, val)
  40. 		if err != nil {
  41. 			log.Fatal(err)
  42. 		}
  43. 	}
  44. 	err = writer.Close()
  45. 	if err != nil {
  46. 		log.Fatal(err)
  47. 	}
  49. 	request, err := http.NewRequest("POST", uri, body)
  50. 	if err != nil {
  51. 		log.Fatal(err)
  52. 	}
  53. 	request.Header.Set("Content-Type", writer.FormDataContentType())
  55. 	client := &http.Client{}
  56. 	resp, err := client.Do(request)
  57. 	if err != nil {
  58. 		log.Fatal(err)
  59. 	} else {
  60. 		body := &bytes.Buffer{}
  61. 		_, err := body.ReadFrom(resp.Body)
  62. 		if err != nil {
  63. 			log.Fatal(err)
  64. 		}
  65. 		resp.Body.Close()
  66. 		fmt.Println(resp.StatusCode)
  67. 		fmt.Println(resp.Header)
  68. 		fmt.Println(body)
  69. 	}
  70. }

希望对你有帮助！

英文:

I haven't tested the code below, as I don't have a valid Oauth token, but it may put you on the right track.

  1. package main
  2. import (
  3. "bytes"
  4. "fmt"
  5. "io"
  6. "log"
  7. "mime/multipart"
  8. "net/http"
  9. "os"
  10. "path/filepath"
  11. )
  12. func main() {
  13. uri := "https://api.soundcloud.com/tracks.json"
  14. params := map[string]string{
  15. "oauth_token":    "************",
  16. "track[title]":   "Test Track",
  17. "track[sharing]": "public",
  18. }
  19. trackData := "track[asset_data]"
  20. path := "test_track.mp3"
  21. file, err := os.Open(path)
  22. if err != nil {
  23. log.Fatal(err)
  24. }
  25. defer file.Close()
  26. body := &bytes.Buffer{}
  27. writer := multipart.NewWriter(body)
  28. part, err := writer.CreateFormFile(trackData, filepath.Base(path))
  29. if err != nil {
  30. log.Fatal(err)
  31. }
  32. _, err = io.Copy(part, file)
  33. for key, val := range params {
  34. err := writer.WriteField(key, val)
  35. if err != nil {
  36. log.Fatal(err)
  37. }
  38. }
  39. err = writer.Close()
  40. if err != nil {
  41. log.Fatal(err)
  42. }
  43. request, err := http.NewRequest("POST", uri, body)
  44. if err != nil {
  45. log.Fatal(err)
  46. }
  47. request.Header.Set("Content-Type", writer.FormDataContentType())
  48. client := &http.Client{}
  49. resp, err := client.Do(request)
  50. if err != nil {
  51. log.Fatal(err)
  52. } else {
  53. body := &bytes.Buffer{}
  54. _, err := body.ReadFrom(resp.Body)
  55. if err != nil {
  56. log.Fatal(err)
  57. }
  58. resp.Body.Close()
  59. fmt.Println(resp.StatusCode)
  60. fmt.Println(resp.Header)
  61. fmt.Println(body)
  62. }
  63. }

huangapple
  • 本文由 发表于 2014年8月11日 05:00:12
  • 转载请务必保留本文链接：https://go.coder-hub.com/25232984.html
  • audio
  • go
  • rest
  • soundcloud
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