(Swift 3,4,5...) 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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func chilkatTest() {
    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let http = CkoHttp()!

    // 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"

    var url: String? = "https://SHAREPOINT_HTTPS_DOMAIN/_api/web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')"

    var jsonReply: String? = http.quickGetStr(url)
    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
        return
    }

    // Examine the file's metadata in JSON format.
    let json = CkoJsonObject()!
    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.intValue != 200 {
        print("\(json.emit()!)")
        print("Failed.")
        return
    }

    print("\(json.emit()!)")

    print("--------")
    print("Server relative URL: \(json.string(of: "d.ServerRelativeUrl")!)")

    var fileSize: Int = json.int(of: "d.Length").intValue
    print("File Size = \(fileSize)")

    let lastmod = CkoDateTime()!
    lastmod.setFromTimestamp(json.string(of: "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:
    var bLocalTime: Bool = false
    print("\(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
    print("\(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). 
    var unixTime: Int = lastmod.getAsUnixTime(bLocalTime)
    print("Unix time: \(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:
    var dtObj: CkoDtObj? = lastmod.getDtObj(bLocalTime)
    if lastmod.lastMethodSuccess == false {
        print("This should never really happen!")
        return
    }

    print("\(dtObj!.day.intValue)-\(dtObj!.month.intValue)-\(dtObj!.year.intValue) \(dtObj!.hour.intValue):\(dtObj!.minute.intValue):\(dtObj!.second.intValue)")

    dtObj = nil

    // -------------------------------------------------
    // 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"
    //   }
    // }
    // 

}