Converting XML to HTML in NodeJs using LibXSLT(throws has no method 'apply' error)

4.9k Views Asked by Narendran At 15 December 2014 at 23:09

Anybody worked on XML to HTML transform in Nodejs, Iam getting "has no method 'apply'"error

var fs = require('fs');   
var libxslt = require('libxslt');   
var libxmljs = require('libxmljs');   


var docSource = fs.readFileSync('Hello.xml', 'utf8');    
var stylesheetSource = fs.readFileSync('Hello.xsl', 'utf8');    
var stylesheet = libxmljs.parseXml(stylesheetSource);    
var result = stylesheet.apply(docSource);    
res.end(result);

Error:

TypeError: Object <?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
 <xsl:template match="/hello-world"><HTML><HEAD><TITLE/></HEAD><BODY><H1><xsl:value-of select="greeting"/></H1>hello</BODY></HTML> </xsl:template>
</xsl:stylesheet>
has no method 'apply'
   at C:\WEBROOT\DM\wwwRoot\hello\node_modules\Simple_Server.js:151:42
   at Layer.handle [as handle_request]

Original Q&A

There are 2 best solutions below

loganfsmyth On 16 December 2014 at 06:17

The error you means your stylesheet.apply(docSource) failed because stylesheet doesn't have that method. Looking at the docs for xslt makes it pretty clear that .apply is on the results of libxslt.parse, not the result of libxmljs.parseXml. So you need to do:

var fs = require('fs');   
var libxslt = require('libxslt');   
var libxmljs = require('libxmljs');   

var docSource = fs.readFileSync('Hello.xml', 'utf8');    
var stylesheetSource = fs.readFileSync('Hello.xsl', 'utf8');  

var stylesheetObj = libxmljs.parseXml(stylesheetSource);
var doc = libxmljs.parseXml(docSource);

var stylesheet = libxslt.parse(stylesheetObj);
var result = stylesheet.apply(doc);    
res.end(result);

Fuad On 02 October 2020 at 20:27

This syntax worked for me:

stylesheet.apply(doc,  function(err, result){   
console.log("result:",
    result.toString().replace(/^<\?xml version="1\.0" encoding="UTF-8"\?>\s+/, "")
    );
console.log("err:",err);
});

Converting XML to HTML in NodeJs using LibXSLT(throws has no method 'apply' error)

There are 2 best solutions below

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