How to query the Content Id of a File?

Question

After creating a public link of a File using ContentDistribution, you get the below URL

https://--c.documentforce.com/sfc/dist/version/renditionDownload?rendition=ORIGINAL_Jpg&versionId=068q0000000RAdv&operationContext=DELIVERY&contentId=05Tq0000001RiQf&page=0&d=/a/q00000008a0b/6woo3x9YQNR7vTXR2oOOmknAOjpytHMEnZc2nGQ3F54&oid=&dpt=null&viewId=

How to query the Content Id of a File? I can see the URL already contains the Version Id this means the Content Id is something diffrent.

Answer 1

The Content Id in the URL is a ContentBody, which states:

Cannot be queried, inserted, updated, or deleted directly.

...

ContentBody is intended for internal Salesforce use. If you need to access the file content body, please use ContentVersion.

In other words, you're not meant to use this Id. If you need to generate a public link, create a ContentDistribution record. Note that even if you could query ContentBody, it wouldn't be valid without a valid ContentDistribution.

Answer 2

If someone else lands here the Content Id in the URL is ContentBodyId which is present inside the ContentVersion.

ContentBodyId Description: Allows inserting a file version independently of the file blob being uploaded. This field is available for query and insert only. It can only point to a ContentBody record. This field is available in API version 40.0 and later. This is a relationship field.

Ref: https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/sforce_api_objects_contentversion.htm?search_text=Content%20Body