(Node.js) SharePoint -- Update the Contents of a File (PUT)

Demonstrates how to update the contents of a SharePoint file.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

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

    var 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";

    // Update /Documents/ChilkatTest/sample.docx with new content...
    var req = new chilkat.HttpRequest();
    req.HttpVerb = "POST";
    req.Path = "/_api/web/GetFileByServerRelativeUrl('/Documents/ChilkatTest/sample.docx')/$value";
    // Give the location of the file to be uploaded.  
    // Note: The file is not loaded into memory at this point.  It is never fully loaded
    // into memory.  Instead, the file data is streamed directly from the file when
    // when the upload occurs.
    req.StreamBodyFromFile("qa_data/msword/sample.docx");

    // We need to add a form digest value in the X-RequestDigest header field.
    // See this example for details on
    // how to get (and cache) a form digest value
    req.AddHeader("X-RequestDigest","SHAREPOINT_FORM_DIGEST");

    // Also need to add this header..
    req.AddHeader("X-HTTP-Method","PUT");

    // Upload..
    var bUseTls = true;
    // resp: HttpResponse
    var resp = http.SynchronousRequest("SHAREPOINT_HTTPS_DOMAIN",443,bUseTls,req);
    if (http.LastMethodSuccess !== true) {
        console.log(http.LastErrorText);
        return;
    }

    // A successful update will return a 204 status code with an empty body.
    // A non-successful update will return a JSON response body..
    if (resp.StatusCode !== 204) {
        console.log("Response status code = " + resp.StatusCode);
        var json = new chilkat.JsonObject();
        json.Load(resp.BodyStr);
        json.EmitCompact = false;
        console.log(json.Emit());
        console.log("Failed");

        return;
    }

    console.log("Success.");

}

chilkatExample();