|
1 package gondole |
|
2 |
|
3 import ( |
|
4 "bytes" |
|
5 "encoding/json" |
|
6 "fmt" |
|
7 "io" |
|
8 "mime/multipart" |
|
9 "os" |
|
10 "path/filepath" |
|
11 |
|
12 "github.com/sendgrid/rest" |
|
13 ) |
|
14 |
|
15 // UploadMedia uploads the given file and returns an attachment |
|
16 func (g *Client) UploadMedia(filePath string) (*Attachment, error) { |
|
17 var b bytes.Buffer |
|
18 |
|
19 if filePath == "" { |
|
20 return nil, ErrInvalidParameter |
|
21 } |
|
22 |
|
23 f, err := os.Open(filePath) |
|
24 if err != nil { |
|
25 return nil, fmt.Errorf("cannot read file: %s", err.Error()) |
|
26 } |
|
27 defer f.Close() |
|
28 |
|
29 w := multipart.NewWriter(&b) |
|
30 formWriter, err := w.CreateFormFile("file", filepath.Base(filePath)) |
|
31 if err != nil { |
|
32 return nil, fmt.Errorf("media upload: cannot create form: %s", err.Error()) |
|
33 } |
|
34 if _, err = io.Copy(formWriter, f); err != nil { |
|
35 return nil, fmt.Errorf("media upload: cannot create form: %s", err.Error()) |
|
36 } |
|
37 |
|
38 w.Close() |
|
39 |
|
40 req := g.prepareRequest("media", rest.Post, nil) |
|
41 req.Headers["Content-Type"] = w.FormDataContentType() |
|
42 req.Body = b.Bytes() |
|
43 |
|
44 /* |
|
45 reqObj, err := rest.BuildRequestObject(req) |
|
46 if err != nil { |
|
47 return nil, fmt.Errorf("cannot build stream request: %s", err.Error()) |
|
48 } |
|
49 |
|
50 resp, err := rest.MakeRequest(reqObj) |
|
51 if err != nil { |
|
52 return nil, fmt.Errorf("cannot open stream: %s", err.Error()) |
|
53 } |
|
54 if resp.StatusCode != 200 { |
|
55 resp.Body.Close() |
|
56 return nil, errors.New(resp.Status) |
|
57 } |
|
58 return resp, nil |
|
59 */ |
|
60 |
|
61 // Make API call |
|
62 r, err := restAPI(req) |
|
63 if err != nil { |
|
64 return nil, fmt.Errorf("media upload failed: %s", err.Error()) |
|
65 } |
|
66 |
|
67 // Check for error reply |
|
68 var errorResult Error |
|
69 if err := json.Unmarshal([]byte(r.Body), &errorResult); err == nil { |
|
70 // The empty object is not an error |
|
71 if errorResult.Text != "" { |
|
72 return nil, fmt.Errorf("%s", errorResult.Text) |
|
73 } |
|
74 } |
|
75 |
|
76 // Not an error reply; let's unmarshal the data |
|
77 var attachment Attachment |
|
78 err = json.Unmarshal([]byte(r.Body), &attachment) |
|
79 if err != nil { |
|
80 return nil, fmt.Errorf("cannot decode API response (media): %s", err.Error()) |
|
81 } |
|
82 return &attachment, nil |
|
83 } |