XML HTTP

Ce code analyse une requête HTTP comportant du contenu de type "application/xml".

Exemple de code

Go

Pour vous authentifier auprès de Cloud Run Functions, configurez le service Identifiants par défaut de l'application. Pour en savoir plus, consultez Configurer l'authentification pour un environnement de développement local.


// Package http provides a set of HTTP Cloud Functions samples.
package http

import (
	"encoding/xml"
	"fmt"
	"html"
	"io"
	"net/http"

	"github.com/GoogleCloudPlatform/functions-framework-go/functions"
)

func init() {
	functions.HTTP("ParseXML", ParseXML)
}

// ParseXML is an example of parsing a text/xml request.
func ParseXML(w http.ResponseWriter, r *http.Request) {
	var d struct {
		Name string
	}
	b, err := io.ReadAll(r.Body)
	if err != nil {
		http.Error(w, "Could not read request", http.StatusBadRequest)
	}
	if err := xml.Unmarshal(b, &d); err != nil {
		http.Error(w, "Could not parse request", http.StatusBadRequest)
	}
	if d.Name == "" {
		d.Name = "World"
	}
	fmt.Fprintf(w, "Hello, %v!", html.EscapeString(d.Name))
}

Java

import com.google.cloud.functions.HttpFunction;
import com.google.cloud.functions.HttpRequest;
import com.google.cloud.functions.HttpResponse;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;

public class ParseXml implements HttpFunction {
  private static DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();

  // Parses a HTTP request in XML format
  // (Responds with a 400 error if the HTTP request isn't valid XML.)
  @Override
  public void service(HttpRequest request, HttpResponse response)
      throws IOException, ParserConfigurationException {

    try {
      DocumentBuilder docBuilder = dbFactory.newDocumentBuilder();
      var writer = new PrintWriter(response.getWriter());

      // Get request body
      InputStream bodyStream = new ByteArrayInputStream(
          request.getInputStream().readAllBytes());

      // Parse + process XML
      Document doc = docBuilder.parse(bodyStream);
      writer.printf("Root element: %s", doc.getDocumentElement().getNodeName());
    } catch (SAXException e) {
      response.setStatusCode(HttpURLConnection.HTTP_BAD_REQUEST);
      return;
    }
  }
}

Node.js

const functions = require('@google-cloud/functions-framework');

/**
 * Parses a document of type 'text/xml'
 *
 * @param {Object} req Cloud Function request context.
 * @param {Object} res Cloud Function response context.
 */
functions.http('parseXML', (req, res) => {
  // Convert the request to a Buffer and a string
  // Use whichever one is accepted by your XML parser
  const data = req.rawBody;
  const xmlData = data.toString();

  const {parseString} = require('xml2js');

  parseString(xmlData, (err, result) => {
    if (err) {
      console.error(err);
      res.status(500).end();
      return;
    }
    res.send(result);
  });
});

Python

import json

import functions_framework

import xmltodict

@functions_framework.http
def parse_xml(request):
    """Parses a document of type 'text/xml'
    Args:
        request (flask.Request): The request object.
    Returns:
        The response text, or any set of values that can be turned into a
         Response object using `make_response`
        <http://flask.pocoo.org/docs/1.0/api/#flask.Flask.make_response>.
    """
    data = xmltodict.parse(request.data)
    return json.dumps(data, indent=2)

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