I stumbled across an Apex method in the documentation recently that would generate a URL for the download link for a standard Attachment, with a name something like getDownloadLink(). I don't remember the System class or what parameters it took, but I'd prefer using that in the backend to hardcoding


Does anyone know where I can find this method? I made a mental, but not physical, note of its location in the docs... :(


You're looking for getFileFieldUrl from the URL Class.

getFileFieldURL(entityId, fieldName)

Returns the download URL for a file attachment.


public static String getFileFieldURL(String entityId, String fieldName)



Type: String

Specifies the ID of the entity that holds the file data.


Type: String

Specifies the API name of a file field component, such as AttachmentBody.

Return Value

Type: String




 String fileURL =
     '087000000000123' ,
  • It only works with Ideas as mentioned by Daniel here? – Raul Oct 18 '17 at 11:23
  • @RahulSharma it works on other types, too. It used to be limited, but had since had other types added. It's a pretty handy method. – sfdcfox Oct 18 '17 at 14:00

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