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pages/{pageid}/diff (GET)

Overview

Show changes between revisions

  • REST Method: GET
  • Method Access: public

Uri Parameters

Name Type Description
pageid string either an integer page ID, "home", or "=" followed by a double uri-encoded page path

Query Parameters

Name Type Description
authenticate bool? Force authentication for request (default: false)
diff {combined, all}? Result format; 'combined' shows changes to the page contents, 'all' shows in addition the before and after versions of the page with highlighted changes; default is 'combined'
previous string? Previous page revision to retrieve. 'head' by default will retrieve latest revision. Positive integer or a TimeUUID will retrieve specific revision
format {html, xhtml}? Result format (default: html)
mode {edit, raw, view}? which rendering mode to use when diffing; default is 'edit'
revision string? Page revision to retrieve. 'head' by default will retrieve latest revision. Positive integer or a TimeUUID will retrieve specific revision
redirects int? If zero, do not follow page redirects.

Return Codes

Name Value Description
OK 200 The request completed successfully
Bad Request 400 Invalid input parameter or request body
Forbidden 403 Read access to the page is required
Not Found 404 Requested page could not be found

Message Format

Output:

<content type="{contenttype}">{text}</content> 

Implementation Notes

Setting Previous/Revision=1 refers to the earliest revision, 2 refers to the next earliest revision, and so on.  Similarly, Previous/Revision=-1 refers to the revision prior to the current, -2 refers to the revision two prior to the current, and so on. 

This feature uses the ViewNoExecute mode output from GET:pages/{pageid}/contents to perform the diff comparison.

C# Code Sample: Retrieve Page Diffs

The following code example performs a diff between the current and previous revisions of the page called "Page_Title":

Sample Code

Plug p = Plug.New("http://deki-hayes/@api/deki");
p.At("users", "authenticate").WithCredentials("admin", "password").Get();
p.At("pages", "=Page_Title", "diff").With("revision", "head").With("previous", -1).Get();

Sample Response from executing Code

Sample response indicating that the word "original" was deleted and the word "new" was added:

<content type="application/x.deki0702+xml">
    <p>
        <ins>new</ins>
        <del>original</del>
        &nbsp;text
    </p>
</content> 

Implementation notes 

Add notes about requirements or config values

Curl Code Sample: Retrieve Page Diffs

The following command generates a diff of the head (or current) revision of page "foo" and compares it to the previous revision. Note that the address is placed in quotes since the & character is reserved (at least in Windows cmd console).

Sample Code

curl -u username:password -i "http://mindtouch.address/@api/deki/pages/=foo/diff?revision=head&previous=-1"

Sample Response from executing Code

Head version: I am the Joker

Previous version: I am the Batman

<content type="application/x.deki-text">
<p>Home of the <ins>Joker</ins><del>Batman</del></p> <!-- Joker string inserted, Batman string removed -->
</content>

Implementation notes 

curl flags

-u
Provides external user authentication. Note that if anonymous access is available and authentication is not forced, this flag may be omitted.
-i
Outputs the HTTP response headers. Useful for debugging.

Revision rules

Setting Previous/Revision=1 refers to the earliest revision, 2 refers to the next earliest revision, and so on.  Similarly, Previous/Revision=-1 refers to the revision prior to the current, -2 refers to the revision two prior to the current, and so on. 
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