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(Node.js) URL Encoding Charset in POST Query Params

Demonstrates how to control the URL encoding charset in POST query params.

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-node11-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node11-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node11-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node11-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node11-linux64');
    }
} else if (os.platform() == 'darwin') {
    var chilkat = require('@chilkat/ck-node11-macosx');
}

function chilkatExample() {

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

    // We have the string "MÆRSK".
    var nameWin1252Encoded = "M%E6RSK";

    // Note: The DecodeAndAppend method is newly added in Chilkat v9.5.0.87
    var sb = new chilkat.StringBuilder();
    var success = sb.DecodeAndAppend(nameWin1252Encoded,"url","windows-1252");

    var http = new chilkat.Http();

    // We're setting the session log filename so we can see the exact request sent.
    http.SessionLogFilename = "qa_output/sessionLog.txt";

    // First demonstrate a simple application/x-www-form-urlencoded POST

    var req = new chilkat.HttpRequest();

    // Set the Charset = "utf-8" to cause URL encoding to use utf-8.
    req.Charset = "utf-8";

    req.AddParam("name",sb.GetAsString());

    // resp: HttpResponse
    var resp = http.PostUrlEncoded("https://www.chilkatsoft.com/something",req);
    if (http.LastMethodSuccess == false) {
        console.log(http.LastErrorText);
        return;
    }

    // This is the request that is sent:
    // Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

    // 	POST /something HTTP/1.1
    // 	Host: www.chilkatsoft.com
    // 	Content-Type: application/x-www-form-urlencoded
    // 	Content-Length: 15
    // 
    // 	name=M%C3%A6RSK

    // ---------------------------------------------------------------
    // Switch to windows-1252

    req.Charset = "windows-1252";

    resp = http.PostUrlEncoded("https://www.chilkatsoft.com/something",req);
    if (http.LastMethodSuccess == false) {
        console.log(http.LastErrorText);
        return;
    }

    // This is the request that is sent:
    // Notice that windows-1252 is used in the query param (the letter 'Æ' is %E6)

    // 	POST /something HTTP/1.1
    // 	Host: www.chilkatsoft.com
    // 	Content-Type: application/x-www-form-urlencoded
    // 	Content-Length: 12
    // 
    // 	name=M%E6RSK

    // ---------------------------------------------------------------
    // Let's do the same with SynchronousRequest, switching back to utf-8

    req.Path = "/something";
    req.HttpVerb = "POST";
    req.ContentType = "application/x-www-form-urlencoded";

    req.Charset = "utf-8";

    resp = http.SynchronousRequest("www.chilkatsoft.com",443,true,req);
    if (http.LastMethodSuccess == false) {
        console.log(http.LastErrorText);
        return;
    }

    // This is the request that is sent:
    // Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

    // 	POST /something HTTP/1.1
    // 	Host: www.chilkatsoft.com
    // 	Content-Type: application/x-www-form-urlencoded
    // 	Content-Length: 15
    // 
    // 	name=M%C3%A6RSK

    // ---------------------------------------------------------------
    // Let's do a PostXml where the query params are in the HTTP request start line, 
    // and the Content-Type is text/xml where the body of the request is XML.

    req.Path = "/something";
    req.HttpVerb = "POST";
    req.ContentType = "text/xml";
    success = req.LoadBodyFromString("<test>123</test>","utf-8");
    req.Charset = "utf-8";

    // Remember... our request object still contains the query param added in the above call to AddParam.

    resp = http.SynchronousRequest("www.chilkatsoft.com",443,true,req);
    if (http.LastMethodSuccess == false) {
        console.log(http.LastErrorText);
        return;
    }

    // This is the request that is sent:
    // Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

    // 	POST /something?name=M%C3%A6RSK HTTP/1.1
    // 	Host: www.chilkatsoft.com
    // 	Content-Type: text/xml
    // 	Content-Length: 16
    // 
    // 	<test>123</test>


}

chilkatExample();

 

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