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206
VisualizaçõesHow do I extract an object from a promise?
I'm trying get some information out of a nosql database and then read that information through my template engine (handlebars), But I have no idea how to do it
all i'm getting is this message:
here's some of the code I wrote thinking it could work
let blogPosts = blog.find().where().exec(function(err, blogInfo){
return blogInfo
});
router.get('/', function(req, res) {
res.render("blog-home", {blogposts: blogPosts})
});
thanks.
·
Santiago Trujillo
2 Respostas
Responde à pergunta0
You have to wait for the promise to resolve and then render the template, once the value is there.
router.get('/', function(req, res) {
let blogPostsPromise = blog.find().where().exec(function(err, blogInfo) {
return blogInfo
});
blogPostsPromise
.then(blogPosts => res.render("blog-home", { blogposts: blogPosts }))
.catch(next);
});
·
Santiago Trujillo
Relatório
0
To extract an object from a promise you have to wait for the promise to finish. You do it by using ".then" on the promise.
let blogPosts = blog.find().where().exec(function(err, blogInfo){
return blogInfo
});
router.get('/', function(req, res) {
blogPosts.then(function (posts) {
res.render("blog-home", {blogposts: posts});
});
});
·
Santiago Trujillo
Relatório
Responde à pergunta