author | Mikael Berthe <mikael@lilotux.net> |
Sun, 16 Apr 2017 13:37:37 +0200 | |
changeset 128 | a5a00fad7a32 |
parent 126 | 330c4b83f7d3 |
child 130 | c450bb73f59a |
permissions | -rw-r--r-- |
126 | 1 |
package gondole |
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import ( |
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"bytes" |
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"encoding/json" |
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"fmt" |
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"io" |
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"mime/multipart" |
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"os" |
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"path/filepath" |
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"github.com/sendgrid/rest" |
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) |
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// UploadMedia uploads the given file and returns an attachment |
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func (g *Client) UploadMedia(filePath string) (*Attachment, error) { |
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var b bytes.Buffer |
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if filePath == "" { |
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return nil, ErrInvalidParameter |
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} |
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f, err := os.Open(filePath) |
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if err != nil { |
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return nil, fmt.Errorf("cannot read file: %s", err.Error()) |
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} |
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defer f.Close() |
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w := multipart.NewWriter(&b) |
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formWriter, err := w.CreateFormFile("file", filepath.Base(filePath)) |
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if err != nil { |
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return nil, fmt.Errorf("media upload: cannot create form: %s", err.Error()) |
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} |
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if _, err = io.Copy(formWriter, f); err != nil { |
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return nil, fmt.Errorf("media upload: cannot create form: %s", err.Error()) |
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} |
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w.Close() |
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128
a5a00fad7a32
Add checks for client initialization
Mikael Berthe <mikael@lilotux.net>
parents:
126
diff
changeset
|
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req, err := g.prepareRequest("media", rest.Post, nil) |
a5a00fad7a32
Add checks for client initialization
Mikael Berthe <mikael@lilotux.net>
parents:
126
diff
changeset
|
41 |
if err != nil { |
a5a00fad7a32
Add checks for client initialization
Mikael Berthe <mikael@lilotux.net>
parents:
126
diff
changeset
|
42 |
return nil, fmt.Errorf("media prepareRequest failed: %s", err.Error()) |
a5a00fad7a32
Add checks for client initialization
Mikael Berthe <mikael@lilotux.net>
parents:
126
diff
changeset
|
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} |
126 | 44 |
req.Headers["Content-Type"] = w.FormDataContentType() |
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req.Body = b.Bytes() |
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// Make API call |
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r, err := restAPI(req) |
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if err != nil { |
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return nil, fmt.Errorf("media upload failed: %s", err.Error()) |
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} |
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// Check for error reply |
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var errorResult Error |
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if err := json.Unmarshal([]byte(r.Body), &errorResult); err == nil { |
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// The empty object is not an error |
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if errorResult.Text != "" { |
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return nil, fmt.Errorf("%s", errorResult.Text) |
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} |
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} |
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// Not an error reply; let's unmarshal the data |
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var attachment Attachment |
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err = json.Unmarshal([]byte(r.Body), &attachment) |
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if err != nil { |
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return nil, fmt.Errorf("cannot decode API response (media): %s", err.Error()) |
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} |
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return &attachment, nil |
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} |