README.md

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File transfer

🗂 API for file transfer.

API Description: It is a service that allows you to upload and download files. It was developed using Spring Boot, Java, and provides endpoints for file manipulation, including uploading and downloading single and multiple files.

Summary

• Endpoints
  • File type File
    • Upload a file
    • Upload multiple files
  • File type Part
    • Upload a file
    • Upload multiple files
  • Download a file
  • Download multiple files
• Comments
• Contact

Endpoints for File type files

Single File Upload

Endpoint: POST /api/file/upload

Description: Uploads a single file of type File.

Parameter:

• file: File to be sent of type File.

Successful Response:

{
   "index": 0,
   "message": "File sent successfully",
   "fileName": "file_name_20231031123456.txt"
}

Error Response:

{
   "index": null,
   "message": "Empty file",
   "fileName": null
}

Unexpected Error Response:

{
   "message": "File upload failed",
   "fileNames": null,
   "files": null
}

Multiple File Upload

File type files

Endpoint: POST /api/file/uploads

Description: Uploads multiple files at once.

Parameter:

• files: List of files to be sent of type File.

Successful Response:

{
   "message": "Files sent successfully",
   "fileNames": ["file_name_1.txt", "file_name_2.jpg"],
   "files": [
     {
       "index": 0,
       "originalFilename": "file_name_1.txt",
       "downloadFilename": "file_name_1_202310311234560.txt",
       "filename": "file_name_1",
       "extension": ".txt"
     },
     {
       "index": 1,
       "originalFilename": "file_name_2.jpg",
       "downloadFilename": "file_name_2_202310311234561.jpg",
       "filename": "file_name_2",
       "extension": ".jpg"
     }
   ]
}

Error Response:

{
   "message": "Empty list",
   "fileNames": null,
   "files": null
}

Unexpected Error Response:

{
   "message": "Files upload failed",
   "fileNames": null,
   "files": null
}

Endpoints for Part type files

Single File Upload

Endpoint: POST /api/part/upload

Description: Uploads a single file of type Part.

Parameter:

• part: File to be sent of type File.

Successful Response:

{
   "index": 0,
   "message": "File sent successfully",
   "fileName": "file_name_20231031123456.txt"
}

Error Response:

{
   "index": null,
   "message": "Empty file",
   "fileName": null
}

Unexpected Error Response:

{
   "message": "File upload failed",
   "fileNames": null,
   "files": null
}

Multiple File Upload

Part type files

Endpoint: POST /api/part/uploads

Description: Uploads multiple files at once.

Parameter:

• parts: List of files to be sent of type Part.

Successful Response:

{
   "message": "Files sent successfully",
   "fileNames": ["file_name_1.txt", "file_name_2.jpg"],
   "files": [
     {
       "index": 0,
       "originalFilename": "file_name_1.txt",
       "downloadFilename": "file_name_1_202310311234560.txt",
       "filename": "file_name_1",
       "extension": ".txt"
     },
     {
       "index": 1,
       "downloadFilename": "file_name_2_202310311234561.jpg",
       "filename": "file_name_2",
       "extension": ".jpg"
     }
   ]
}

Error Response:

{
   "message": "Empty list",
   "fileNames": null,
   "files": null
}

Unexpected Error Response:

{
   "message": "Files upload failed",
   "fileNames": null,
   "files": null
}

File Download

Endpoint: GET /api/file/download/{fileName}

Description: Downloads a specific file by its name.

Parameters:

• fileName: Name of the file to be downloaded.

Example request: GET /api/file/name_arquivo_1.txt

Answer: File_name_1.txt is downloaded as an attachment.

Download Multiple Files in One Zip File

Endpoint: GET /api/file/downloads

Description: Downloads several files compressed in a zip file.

Parameters:

• fileNames: List of file names to be downloaded.

Example request: GET /api/file/downloads?fileNames=file_name_1.txt,file_name_2.jpg

Answer: The files file_name_1.txt and file_name_2.jpg are downloaded as an attachment compressed in a zip file.

General observations

• If no file is sent per parameter in the upload endpoints, the response will have the status HTTP 400 (Bad Request).
• If any file from the list passed in the multiple file download endpoint does not exist in the upload directory, it will be ignored in the zip file.
• If an unexpected error occurs during any of the processes, the response will have the status HTTP 500 (Internal Server Error).

Contact

Made with ❤️ by Leonardo Aragão 👋🏻 Get in touch!