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

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

Chilkat C/C++ Library Downloads

MS Visual C/C++

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#include <C_CkHttp.h>
#include <C_CkJsonObject.h>
#include <C_CkDateTime.h>
#include <C_CkDtObj.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    const char *url;
    const char *jsonReply;
    HCkJsonObject json;
    int fileSize;
    HCkDateTime lastmod;
    BOOL bLocalTime;
    int unixTime;
    HCkDtObj dtObj;

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

    http = CkHttp_Create();

    // If SharePoint Windows classic authentication is used, then set the 
    // Login, Password, LoginDomain, and NtlmAuth properties.
    CkHttp_putLogin(http,"SHAREPOINT_USERNAME");
    CkHttp_putPassword(http,"SHAREPOINT_PASSWORD");
    CkHttp_putLoginDomain(http,"SHAREPOINT_NTLM_DOMAIN");
    CkHttp_putNtlmAuth(http,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
    CkHttp_putAccept(http,"application/json;odata=verbose");

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

    jsonReply = CkHttp_quickGetStr(http,url);
    if (CkHttp_getLastMethodSuccess(http) != TRUE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        return;
    }

    // Examine the file's metadata in JSON format.
    json = CkJsonObject_Create();
    CkJsonObject_Load(json,jsonReply);
    CkJsonObject_putEmitCompact(json,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 (CkHttp_getLastStatus(http) != 200) {
        printf("%s\n",CkJsonObject_emit(json));
        printf("Failed.\n");
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        return;
    }

    printf("%s\n",CkJsonObject_emit(json));

    printf("--------\n");
    printf("Server relative URL: %s\n",CkJsonObject_stringOf(json,"d.ServerRelativeUrl"));

    fileSize = CkJsonObject_IntOf(json,"d.Length");
    printf("File Size = %d\n",fileSize);

    lastmod = CkDateTime_Create();
    CkDateTime_SetFromTimestamp(lastmod,CkJsonObject_stringOf(json,"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:
    bLocalTime = FALSE;
    printf("%s\n",CkDateTime_getAsRfc822(lastmod,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;
    printf("%s\n",CkDateTime_getAsRfc822(lastmod,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). 
    unixTime = CkDateTime_GetAsUnixTime(lastmod,bLocalTime);
    printf("Unix time: %d\n",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:
    dtObj = CkDateTime_GetDtObj(lastmod,bLocalTime);
    if (CkDateTime_getLastMethodSuccess(lastmod) == FALSE) {
        printf("This should never really happen!\n");
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        CkDateTime_Dispose(lastmod);
        return;
    }

    printf("%d-%d-%d %d:%d:%d\n",CkDtObj_getDay(dtObj),CkDtObj_getMonth(dtObj),CkDtObj_getYear(dtObj),CkDtObj_getHour(dtObj),CkDtObj_getMinute(dtObj)
        ,CkDtObj_getSecond(dtObj));

    CkDtObj_Dispose(dtObj);

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


    CkHttp_Dispose(http);
    CkJsonObject_Dispose(json);
    CkDateTime_Dispose(lastmod);

    }

 

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