Using data from firebaseDB with cloud functions

Question

I'm trying to pre-render metas with google cloud functions but I can't figure out how to acces the values, the data log returns this on the functions console (see link)

console.log(data) returns this

    exports.preLoadMeta = functions.https.onRequest((request, response) => {
    let id = request.url.split("/");
    let data;

    admin.database().ref('proyectos').orderByChild("urlAmigable").equalTo(id[2]).once("value")
        .then(proyectos =>{
            data = proyectos.val();
            console.log(data)
        }).then( () => {
            response.status(200).send(`
<!doctype html>
<html class="no-js" lang="es" dir="ltr">
  <head>
    <title>${data.titulo}</title>
    <meta name="description" content="bla bla - ${data.titulo}" />
    <meta property="og:title" content="${data.titulo}" />
    <meta property="og:description" content="${data.meta}" />
    <meta property="og:image" content="${data.imgUrl}" />
    <meta property="og:type" content="article" />
            `);
        })
})

(this does not work)

Michael Bleigh · Accepted Answer · 2017-06-13 16:58:30Z

2

I think you're expecting your query to return the child instead of the collection. You need to get the child (even though there's only one in this case). Try using this code for your snapshot instead:

proyectos.forEach(child => {
  data = child.val()
});

answered Jun 13, 2017 at 16:58

Michael Bleigh

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