(.NET Core C#) SharePoint -- Get File Metadata (File Size, Last-Modified Date/Time, etc.)

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Demonstrates how to get a file's metdata, which includes the file size, last-modified date/time, name, server relative URL, etc.

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// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Http http = new Chilkat.Http();

// If SharePoint Windows classic authentication is used, then set the 
// Login, Password, LoginDomain, and NtlmAuth properties.
http.Login = "SHAREPOINT_USERNAME";
http.Password = "SHAREPOINT_PASSWORD";
http.LoginDomain = "SHAREPOINT_NTLM_DOMAIN";
http.NtlmAuth = true;

// The more common case is to use SharePoint Online authentication (via the SPOIDCRL cookie).
// If so, do not set Login, Password, LoginDomain, and NtlmAuth, and instead
// establish the cookie as shown at SharePoint Online Authentication

// Indicate that we want a JSON reply
http.Accept = "application/json;odata=verbose";
http.AcceptCharset = "utf-8";

string url = "https://SHAREPOINT_HTTPS_DOMAIN/_api/web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')";

string jsonReply = http.QuickGetStr(url);
if (http.LastMethodSuccess != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// Examine the file's metadata in JSON format.
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.Load(jsonReply);
json.EmitCompact = false;

// Make sure it was a success response, and that we really have metadata.
// If it was an error response, then the JSON is error information..
if (http.LastStatus != 200) {
    Debug.WriteLine(json.Emit());
    Debug.WriteLine("Failed.");
    return;
}

Debug.WriteLine(json.Emit());

Debug.WriteLine("--------");
Debug.WriteLine("Server relative URL: " + json.StringOf("d.ServerRelativeUrl"));

int fileSize = json.IntOf("d.Length");
Debug.WriteLine("File Size = " + Convert.ToString(fileSize));

Chilkat.CkDateTime lastmod = new Chilkat.CkDateTime();
lastmod.SetFromTimestamp(json.StringOf("d.TimeLastModified"));

// Once we have the CkDateTime object, we can get the date/time in all sorts of formats:

// Get as a RFC822 GMT string:
bool bLocalTime = false;
Debug.WriteLine(lastmod.GetAsRfc822(bLocalTime));

// Get as an RFC822 string in the local timezone.
// (remember, the daylight savings that existed at the given time in the past is applied)
bLocalTime = true;
Debug.WriteLine(lastmod.GetAsRfc822(bLocalTime));

// Get as a 32-bit UNIX time (local or GMT..)
// The Unix time is number of seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC). 
int unixTime = lastmod.GetAsUnixTime(bLocalTime);
Debug.WriteLine("Unix time: " + Convert.ToString(unixTime));

// One can also get the as a "DtObj" object for accessing the individual
// parts of the date/time, such as month, day, year, hour, minute, etc.
// The DtObj can be obtained in the GMT or local timezone:
Chilkat.DtObj dtObj = lastmod.GetDtObj(bLocalTime);
if (lastmod.LastMethodSuccess == false) {
    Debug.WriteLine("This should never really happen!");
    return;
}

Debug.WriteLine(Convert.ToString(dtObj.Day) + "-" + Convert.ToString(dtObj.Month) + "-" + Convert.ToString(dtObj.Year) + " "
     + Convert.ToString(dtObj.Hour) + ":" + Convert.ToString(dtObj.Minute) + ":" + Convert.ToString(dtObj.Second));

// -------------------------------------------------
// The file's metadata look like this:

// { 
//   "d": { 
//     "__metadata": { 
//       "id": "Web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')",
//       "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')",
//       "type": "SP.File"
//     },
//     "Author": { 
//       "__deferred": { 
//         "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')/Author"
//       }
//     },
//     "CheckedOutByUser": { 
//       "__deferred": { 
//         "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')/CheckedOutByUser"
//       }
//     },
//     "ListItemAllFields": { 
//       "__deferred": { 
//         "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')/ListItemAllFields"
//       }
//     },
//     "LockedByUser": { 
//       "__deferred": { 
//         "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')/LockedByUser"
//       }
//     },
//     "ModifiedBy": { 
//       "__deferred": { 
//         "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')/ModifiedBy"
//       }
//     },
//     "Versions": { 
//       "__deferred": { 
//         "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')/Versions"
//       }
//     },
//     "CheckInComment": "",
//     "CheckOutType": 2,
//     "ContentTag": "{E2F05E75-B3EF-4826-8284-E572D3628A7D},9,10",
//     "CustomizedPageStatus": 0,
//     "ETag": "\"{E2F05E75-B3EF-4826-8284-E572D3628A7D},9\"",
//     "Exists": true,
//     "Length": "21082",
//     "Level": 2,
//     "MajorVersion": 0,
//     "MinorVersion": 3,
//     "Name": "VCAC-document.docx",
//     "ServerRelativeUrl": "/Documents/VCAC-document.docx",
//     "TimeCreated": "2016-03-04T12:38:01Z",
//     "TimeLastModified": "2017-01-16T04:44:31Z",
//     "Title": "",
//     "UIVersion": 3,
//     "UIVersionLabel": "0.3"
//   }
// }
//