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How does the ZIP file get sent back to Salesforce?
Once complete, the ZIP file is sent back to Salesforce via the saveData method and saved as an Attachment. Any errors encountered along the way are caught and displayed to the user.
How do I create a zip file using APEX?
Since Apex can’t create ZIP files, we’ll be doing this with JavaScript that is run in the Visualforce Page. Let’s start with the Apex Class. The Class is a custom controller that will be used by the Visualforce Page for querying records, building the XML files, and saving the ZIP file as an attachment.
Does Salesforce compress a response if it has Accept-encoding?
Salesforce compresses a response only if the request contains an Accept-Encoding: gzip or Accept-Encoding: deflate header. REST API isn’t required to compress the response even if you’ve specified Accept-Encoding, but it normally does.
What is the maximum size of an apex request?
Limit: 6 MB for synchronous Apex or 12 MB for asynchronous Apex. The HTTP request and response sizes count towards the total heap size. Sets the contents of the body for this request using a Blob. Limit: 6 MB for synchronous Apex or 12 MB for asynchronous Apex.
How do you compress to a ZIP file?
Locate the file or folder that you want to zip. Press and hold (or right-click) the file or folder, select (or point to) Send to, and then select Compressed (zipped) folder. A new zipped folder with the same name is created in the same location.
Does Salesforce support ZIP files?
Salesforce doesn’t support zip file extraction.
How do I compress a ZIP file to a specific size?
Open that folder, then select File, New, Compressed (zipped) folder. Type a name for the compressed folder and press enter. Your new compressed folder will have a zipper on its icon to indicate that any files contained in it are compressed. To compress files (or make them smaller) simply drag them into this folder.
How do I create a highly compressed ZIP file with 7zip?
About This ArticleInstall 7-Zip.Right-click the file(s) you want to zip.Select 7-Zip and click Add to archive…Select ZIP or 7z as the archive format.Choose LZMA2 or LZMA as the compression method.Click OK.
How do I zip a file in Apex?
Zip attachments only with Apex in SalesforceSelect attachments from an object id.Zip those files with Zippex.Save Blob data of zip file into a Document.Redirect to Document download url and download it from Salesforce.
How do I upload a zip file to Salesforce?
Click Content.Click Portfolio.Click Batch Upload on the toolbar. If you choose Single Upload, the system uploads the ZIP file instead of the individual files within the . zip file.Click Choose File.Navigate to the ZIP file you want to upload and click Open.Click OK.
How do I make a zip file less than 25 MB?
To do this, simply right-click on your file or folder, then click “Send To”, then “Compressed Zipped Folder”.
How do I reduce file size?
Remove unnecessary images, formatting and macros. Save the file as a recent Word version. Reduce the file size of the images before they are added to the document. If it is still too large, save the file as a PDF.
Why is my ZIP file not smaller?
Again, if you create Zip files and see files that cannot be significantly compressed, it is probably because they already contain compressed data or they are encrypted. If you would like to share a file or some files that do not compress well, you might: Email photos by zipping and resizing them.
Which compression method is best in 7-zip?
7zFor the best compression rate, choose 7z. Compression level — the compression time increases with the compression level. The presets range from Store (fastest compression) to Ultra (slowest compression time with the most space saved).
What is compression level in 7-zip?
7-Zip is a file archive with the highest compression ratio. It works on the 7z format, which is the successor to the zip format. This format enables it to achieve more than a 1350 percent compression ratio compared to the zip format.
How do I compress a 20gb file?
How to Compress Large Files1 Using 7-Zip for Windows.2 Using WinRAR for Windows.3 Using Archive Utility for Mac.4 Compressing Large Video Files.5 Compressing Large Audio Files.6 Compressing Large Images.
getEndpoint ()
Retrieves the URL for the endpoint of the external server for this request.
setBodyDocument (document)
Sets the contents of the body for this request. The contents represent a DOM document.
setClientCertificateName (certDevName)
If the external service requires a client certificate for authentication, set the certificate name.
setCompressed (flag)
If true, the data in the body is delivered to the endpoint in the gzip compressed format. If false, no compression format is used.
setTimeout (timeout)
Sets a timeout for the request between 1 and 120,000 milliseconds. The timeout is the maximum time to wait for establishing the HTTP connection. The same timeout is used for waiting for the request to start. When the request is executing, such as retrieving or posting data, the connection is kept alive until the request finishes.