User uploads

When you integrate Design Editor with your application, you may need to manipulate files in the private user gallery. For example, you may want to upload files without using the image manager or move/delete these files programmatically. You can directly access the ..\userdata\<userId>\images\ folder, but this can be difficult or even impossible in some cases. To solve this problem, Design Editor provides the Gallery controller described in this topic.

note

Do not confuse this controller with the UserImages controller, which you can use to extract user files from a state file.

It is recommended to download the code sample demonstrating how to work with the private gallery and authentication API and refer to this sample when reading this topic.

Photos uploaded by the user are usually quite sensitive information. An irresponsible attitude to security in the API development can lead to a privacy violation. Therefore, authorization is required to use this API. You must create a token on the server and pass it in each request as described in Auth tokens. In the code sample, you can see how to work with these tokens.

Function	Request type	URL
Get a file list	GET	~/api/Gallery/Private/{userId}/files
Upload files	POST	~/api/Gallery/Private/{userId}/files
Download an image	GET	~/api/Gallery/Private/{userId}/files/download/{filePath}
Get a preview	GET	~/api/Gallery/Private/{userId}/files/{filePath}
Rename and move a file	PUT	~/api/Gallery/Private/{userId}/files/{filePath}
Delete a file	DELETE	~/api/Gallery/Private/{userId}/files/{filePath}
Create a folder	POST	~/api/Gallery/Private/{userId}/folders
Get a folder list	GET	~/api/Gallery/Private/{userId}/folders
Rename or move a folder	PUT	~/api/Gallery/Private/{userId}/folders/{folderPath}
Delete a folder	DELETE	~/api/Gallery/Private/{userId}/folders/{folderPath}

Getting a File List

To get a list of user images, you can use the ~/api/Gallery/Private/{userId}/files endpoint. This GET request takes the userId required parameter. Also, you can pass the following optional parameters.

URL Parameters

The Gallery controller can take the following parameters when retrieving the list of user images:

• Path - the folder to retrieve images, relative to the ..\userdata\<userId>\images\ folder. The default value is null, which means the controller returns files from the \images\ folder.
• PageSize - the number of images that fit one page. The maximum value is 100. The default value is 20.
• Page - the requested page. The default value is 0.
• OrderBy - the sort order, either Name, Date, or Size. The default value is null, which means the controller returns unsorted files.
• OrderByDescending - enables the descending sort order. The default value is false.
• SvgAction - the way in which SVG files are processed, either Vector or Shape. The default value is Vector.

Request Example

Getting a File List

const getFilesList = async (user, token, ...inputs) => {
  // Use URLSearchParams to build a clean query string from input elements
  const searchParams = new URLSearchParams();
  
  inputs.forEach(input => {
    if (input.value !== "") {
      searchParams.append(input.id, input.value);
    }
  });

  const queryString = searchParams.toString();
  const url = `https://example.com{user}/files${queryString ? '?' + queryString : ''}`;
  
  console.log("Request URL:", url);

  try {
    const response = await fetch(url, {
      method: "GET",
      headers: { 
        "X-CCToken": token 
      }
    });

    if (!response.ok) {
      // Log status text and try to log response body if available.
      const errorText = await response.text();
      console.error("Status:", response.statusText);
      console.error("Response:", errorText);
      throw new Error(`Server error: ${response.status}`);
    }

    const data = await response.json();
    console.log("Success:", data);
  } catch (error) {
    console.error("Failed to fetch file list:", error.message);
  }
};

Success Response

For example, you can get the following response for the case when the default user only has the badge.jpg file in the \images\ folder.

Status Code: 200 OK
Content:
{  
  "success": true,
  "total": 1,
  "page": 0,
  "pageSize": 20,
  "items": [{  
    "storageId": "4F9957DEABA2E5FBED4B2CACA5C7E5FB.jpg",
    "name": "badge.jpg",
    "path": "",
    "width": 750.0,
    "height": 1050.0,
    "dateCreated": "2020-06-20T07:41:25.000",
    "editingEnabled": true,
    "isUserImage": true,
    "isVector": false,
    "originalUrl": "https://example.com/api/Gallery/Private/default/files/badge.jpg",
    "previewUrl": "https://example.com/api/Gallery/Private/default/files/badge.jpg",
    "deleteUrl": "https://example.com/api/Gallery/Private/default/files/badge.jpg",
    "pageIndex": 0,
    "linkedPages": [ ]
  }]
}

Here, the path property contains subfolders in which this item is located, relative to \images\. The linkedPages array contains page names for multipage PDF files, and pageIndex is the page number of this item in the PDF file.

Error Response

You can receive the following error responses:

•   Status Code: 403 Forbidden
    Content: Invalid Security Token

•   Status Code: 403 Forbidden
    Content: Invalid Security Key

•   Status Code: 404 Not Found
    Content: Folder does not exist

Uploading Files

To upload images to the user folder, you can use the ~/api/Gallery/Private/{userId}/files endpoint. This POST request takes the userId required parameter.

URL Parameters

The Gallery controller can take the following two parameters when uploading user images:

• Path - the destination folder for uploading images, relative to the ..\userdata\<userId>\images\ folder. The default value is null, which means the controller uploads files to the \images\ folder.
• OverwriteExistingFiles - enables overwriting files if this file name already exists. By default, this value is false, and the controller adds a suffix to the file name, for example, _1, _2, and so on.

Request Payload

You can pass a number of files as multipart/form-data in this POST request.

Request Example

Uploading Files

const uploadFile = async (user, token, filesToUpload) => {
  const formData = new FormData();
  
  // Iterate through the first 3 input elements and append their files
  for (const input of Array.from(filesToUpload).slice(0, 3)) {
    if (input.files[0]) {
      formData.append("userfiles[]", input.files[0]);
    }
  }

  const url = `https://example.com{user}/files`;

  try {
    const response = await fetch(url, {
      method: "POST",
      headers: { 
        "X-CCToken": token 
      },
      // Fetch automatically sets 'multipart/form-data' with the correct boundary
      body: formData
    });

    if (!response.ok) {
      const errorBody = await response.text();
      console.error("Status:", response.statusText);
      console.error("Response body:", errorBody);
      throw new Error(`Server error: ${response.status}`);
    }

    const result = await response.json();
    console.log("Success:", result);
  } catch (error) {
    console.error("Failed to upload file(s):", error.message);
  }
};

Success Response

This request results in the same success response described in the previous section.

Error Response

You can receive the following error responses:

• Status Code: 400 Bad Request
  Content: Invalid file

• Status Code: 403 Forbidden
  Content: Invalid Security Token

• Status Code: 500 Internal Server Error
  Content: Error while uploading file

Downloading an Image

To download an original image or its fragment, you can use the ~/api/Gallery/Private/{userId}/files/download/{filePath} endpoint. This GET request takes the userId and filePath required parameters and outputs an image to a stream.

URL Parameters

The Gallery controller can take the following parameters when downloading user images:

• X-CCToken - the authentication token.
• Width - the width of the resulting image, in pixels. The default value is the width of the original image.
• Height - the height of the resulting image, in pixels. The default value is the height of the original image.
• X - the x-coordinate of the fragment, in pixels. The default value is 0.
• Y - the y-coordinate of the fragment, in pixels. The default value is 0.
• OriginalWidth - the width of the image fragment, in pixels. The default value is the width of the original image.
• OriginalHeight - the height of the image fragment, in pixels. The default value is the height of the original image.
• Angle - the rotation angle of the fragment relative to the fragment center, in degrees. The default value is 0.

Request Example

Downloading an Image

<script>
    const downloadImage = (user, fileName, ...inputs) => {
        const baseURL = "https://example.com/cc/";

        const params = new URLSearchParams();
        inputs.forEach(input => {
            if (input.value) {
                params.append(input.id, input.value);
            }
        });

        const queryString = params.toString();
        const finalUrl = `${baseURL}api/Gallery/Private/${user}/files/download/${fileName}${queryString ? '?' + queryString : ''}`;
        
        console.log("Download URL:", finalUrl);

        document.getElementById("originalImage").innerHTML = `<img src="${finalUrl}" alt="Original Image" />`;
    };
</script>
<div id="originalImage"></div>

Success Response

Status Code: 200 OK
Content-type: image/jpeg

Error Response

You can receive the following error response:

Status Code: 403 Forbidden
Content: Invalid Security Token

Getting a Preview

To preview user images, you can use the ~/api/Gallery/Private/{userId}/files/{filePath} endpoint. This GET request takes the userId and filePath required parameters and outputs a preview image to a stream.

URL Parameters

The Gallery controller can take the following parameters when rendering previews of user images:

• X-CCToken - the authentication token.
• Width - the maximum width of this preview, up to 500 pixels. The default value is 500.
• Height - the maximum height of this preview, up to 500 pixels. The default value is 500.
• PsdAction - the way in which PSD files are processed, either Design or Merged. The default value is Design.
• SvgAction - the way in which SVG files are processed, either Vector or Shape. The default value is Vector.
• PageIndex - the index of a page in a PDF file, starting from 0. The default value is 0.
• ThemeConfig - the object representing Product Themes. You need to pass this object when a private gallery may contain PSD templates with the <THMB> marker.
• ThemeName - the theme name that you define in the clientConfig.json file.

Request Example

Getting a Preview

<script>
    const previewFile = (user, fileName, ...inputs) => {
        const baseURL = "https://example.com";

        const params = new URLSearchParams(
            inputs.filter(i => i.value).map(i => [i.id, i.value])
        ).toString();

        const finalUrl = `${baseURL}api/Gallery/Private/${user}/files/${fileName}${params ? '?' + params : ''}`;

        document.getElementById("preview").innerHTML = `<img src="${finalUrl}" alt="Preview" />`;
    };
</script>
<div id="preview"></div>

Success Response

Status Code: 200 OK
Content-type: image/jpeg

Error Response

You can receive the following error responses:

• Status Code: 400 Bad Request
  Content: Width/Height is out of range

• Status Code: 403 Forbidden
  Content: Invalid Security Token

Renaming and Moving a File

To rename or move user images, you can use the ~/api/Gallery/Private/{userId}/files/{filePath} endpoint. This PUT request takes the userId and filePath required parameters.

URL Parameters

The Gallery controller can take the following optional parameters:

• Name - the new file name.
• Path - the new file path, relative to the ..\userdata\<userId>\images\ folder.

Request Example

Renaming and Moving a File

const renameFile = async (user, token, fileName, newFileName, whereTo) => {
  const baseUrl = `https://example.com{user}/files/${fileName}`;
  const params = new URLSearchParams();

  if (newFileName) params.append("Name", newFileName);
  if (whereTo) params.append("Path", whereTo);

  const queryString = params.toString();
  const url = queryString ? `${baseUrl}?${queryString}` : baseUrl;

  try {
    const response = await fetch(url, {
      method: "PUT",
      headers: { 
        "X-CCToken": token 
      }
    });

    if (!response.ok) {
      const errorText = await response.text();
      console.error("Status:", response.statusText);
      console.error("Response body:", errorText);
      throw new Error(`Server error: ${response.status}`);
    }

    console.log("Success: The file was renamed or moved.");
  } catch (error) {
    console.error("Failed to rename or move the file:", error.message);
  }
};

Success Response

Status Code: 200 OK

Error Response

You can receive the following error responses:

• Status Code: 400 Bad Request
  Content: File path required

• Status Code: 400 Bad Request
  Content: Either name or path must be provided

• Status Code: 403 Forbidden
  Content: Invalid Security Token

• Status Code: 404 Not Found
  Content: File not found

• Status Code: 409 Conflict
  Content: Cannot move or rename the file because a file with the same name already exists

Deleting a File

To delete user images, you can use the ~/api/Gallery/Private/{userId}/files/{filePath} endpoint. This DELETE request takes the userId and filePath required parameters.

Request Example

Deleting a File

const deleteFile = async (user, token, fileName) => {
  const url = `https://example.com{user}/files/${fileName}`;

  try {
    const response = await fetch(url, {
      method: "DELETE",
      headers: { 
        "X-CCToken": token 
      }
    });

    if (!response.ok) {
      // Log status text and try to log response body if available.
      const errorText = await response.text();
      console.error("Status:", response.statusText);
      console.error("Response body:", errorText);
      throw new Error(`Server error: ${response.status}`);
    }

    console.log("Success: The file was deleted.");
  } catch (error) {
    console.error("Failed to delete the file:", error.message);
  }
};

Success Response

Status Code: 200 OK

Error Response

You can receive the following error responses:

• Status Code: 400 Bad Request
  Content: File path required

• Status Code: 403 Forbidden
  Content: Invalid Security Token

• Status Code: 404 Not Found
  Content: File not found

Creating a Folder

To create a folder in the private user gallery, you can use the ~/api/Gallery/Private/{userId}/folders endpoint. This POST request takes the userId required parameter.

URL Parameters

The Gallery controller can take the following parameters when creating a folder:

• Name - the folder name to be created.
• Path - the parent folder. If you omit this parameter, this controller creates the subfolder in the ..\userdata\<userId>\images\ folder.

Request Example

Creating a Folder

const createFolder = async (user, token, folderName, path) => {
  const baseURL = "https://example.com";
  const url = `${baseURL}${user}/folders`;

  const params = new URLSearchParams();
  params.append("Name", folderName);
  if (path) {
    params.append("path", path);
  }

  try {
    const response = await fetch(`${url}?${params.toString()}`, {
      method: "POST",
      headers: { 
        "X-CCToken": token 
      }
    });

    if (!response.ok) {
      const errorText = await response.text();
      console.error("Status:", response.statusText);
      console.error("Response body:", errorText);
      throw new Error(`Server error: ${response.status}`);
    }

    console.log("Success: The folder was created.");
  } catch (error) {
    console.error("Failed to create the folder:", error.message);
  }
};

Success Response

Status Code: 200 OK

Error Response

You can receive the following error responses:

• Status Code: 400 Bad Request
  Content: The Name parameter is required

• Status Code: 403 Forbidden
  Content: Invalid Security Token

• Status Code: 409 Conflict
  Content: Folder already exists

Getting a Folder List

To get a list of folders, you can use the ~/api/Gallery/Private/{userId}/folders endpoint. This GET request takes the userId required parameter. Also, you can pass the following optional parameters.

URL Parameters

The Gallery controller can take the following parameters when retrieving the list of folders:

• Path - the folder to retrieve subfolder names, relative to the ..\userdata\<userId>\images\ folder. The default value is null, which means the controller returns subfolder names from the \images\ folder.
• PageSize - the number of subfolders that fit one page. The maximum value is 100. The default value is 20.
• Page - the current page. The default value is 0.
• OrderBy - the sort order, either Name or Date. By default, this controller returns the subfolder list sorted by names.
• OrderByDescending - enables the descending sort order. The default value is false.

Request Example

Getting a Folder List

const getFolderList = async (user, token, ...inputs) => {
  const searchParams = new URLSearchParams();

  inputs.forEach(input => {
    if (input.value !== "") {
      searchParams.append(input.id, input.value);
    }
  });

  const queryString = searchParams.toString();
  const url = `https://example.com{user}/folders${queryString ? '?' + queryString : ''}`;
  
  console.log("Request URL:", url);

  try {
    const response = await fetch(url, {
      method: "GET",
      headers: { 
        "X-CCToken": token 
      }
    });

    if (!response.ok) {
      // Log status text and response body if available.
      const errorText = await response.text();
      console.error("Status:", response.statusText);
      console.error("Response:", errorText);
      throw new Error(`Server error: ${response.status}`);
    }

    const data = await response.json();
    console.log("Success:", data);
  } catch (error) {
    console.error("Failed to fetch folder list:", error.message);
  }
};

Success Response

For example, you can get the following response for the case when the default user only has the \Europe\ subfolder in \images\.

Status Code: 200 OK
Content:
{
  "total": 1,
  "page": 0,
  "pageSize": 20,
  "folders": [{  
    "name": "Europe",
    "path": null,
    "date": "2020-01-23T05:43:40.000",
    "fileCount": 2
  }]
}

Here, null in the path property means that the parent folder of this subfolder is \images\. The fileCount property contains the number of files in this folder, and date is when this folder was created or updated.

Error Response

You can receive the following error responses:

• Status Code: 403 Forbidden
  Content: Invalid Security Token

• Status Code: 403 Forbidden
  Content: Invalid Security Key

• Status Code: 404 Not Found
  Content: Folder does not exist

Renaming and Moving a Folder

To rename or move a folder in the private gallery, you can use the ~/api/Gallery/Private/{userId}/folders/{folderPath} endpoint. This PUT request takes the userId and folderPath required parameters.

URL Parameters

The Gallery controller can take the following optional parameters:

• Name - the new folder name.
• Path - the new folder path, relative to the ..\userdata\<userId>\images\ folder.

Request Example

Renaming and Moving a Folder

const renameFolder = async (user, token, folderName, newFolderName, path) => {
  const baseURL = `https://example.com{user}/folders/${folderName}`;

  const params = new URLSearchParams();
  params.append("Name", newFolderName);
  if (path) {
    params.append("path", path);
  }

  const url = `${baseURL}?${params.toString()}`;

  try {
    const response = await fetch(url, {
      method: "PUT",
      headers: { 
        "X-CCToken": token 
      }
    });

    if (!response.ok) {
      const errorText = await response.text();
      console.error("Status:", response.statusText);
      console.error("Response body:", errorText);
      throw new Error(`Server error: ${response.status}`);
    }

    console.log("Success: The folder was renamed or moved.");
  } catch (error) {
    console.error("Failed to rename or move the folder:", error.message);
  }
};

Success Response

Status Code: 200 OK

Error Response

You can receive the following error responses:

• Status Code: 400 Bad Request
  Content: Folder path required

• Status Code: 400 Bad Request
  Content: Either name or path must be provided

• Status Code: 403 Forbidden
  Content: Invalid Security Token

• Status Code: 404 Not Found
  Content: Folder does not exist

• Status Code: 404 Not Found
  Content: New folder name should not be the same as the old one

• Status Code: 409 Conflict
  Content: Folder with the same name already exists

Deleting a Folder

To delete folders, you can use the ~/api/Gallery/Private/{userId}/folders/{folderPath} endpoint. This DELETE request takes the userId and folderPath required parameters.

Request Example

Deleting a Folder

const deleteFolder = async (user, token, folderName) => {
  const baseURL = "https://example.com";
  const url = `${baseURL}${user}/folders/${folderName}`;

  try {
    const response = await fetch(url, {
      method: "DELETE",
      headers: { 
        "X-CCToken": token 
      }
    });

    if (!response.ok) {
      const errorText = await response.text();
      console.error("Status:", response.statusText);
      console.error("Response body:", errorText);
      throw new Error(`Server error: ${response.status}`);
    }

    console.log("Success: The folder was deleted.");
  } catch (error) {
    console.error("Failed to delete the folder:", error.message);
  }
};

Success Response

Status Code: 200 OK

Error Response

You can receive the following error responses:

• Status Code: 400 Bad Request
  Content: The root folder cannot be deleted

• Status Code: 403 Forbidden
  Content: Invalid Security Token

• Status Code: 404 Not Found
  Content: Folder does not exist