I created a RESTful API using node.js, express.js, and mongodb. I started creating my routes by pulling documents from a MongoDB collection which work perfectly.
Example Collection Document
{
"_id" : ObjectId("51ace8c04cc8ea865df0923e"),
"title" : "Some Example Title",
"producer" :
{
"company" : "Your Company Name"
}
}
Works - and it also works if I do a .find({query}) instead of a generic find()
app.get('/something', something.findAll);
exports.findAll = function(req, res) {
db.collection('something', function(err, collection) {
collection.find().toArray(function(err, items) {
res.contentType('json');
res.header("Access-Control-Allow-Origin", "*");
res.header('Access-Control-Allow-Methods', 'GET, PUT');
res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization');
res.send(items);
});
});
};
But when I try to call a embedded document (i.e. subdocument) it using dot.notation it breaks.
*Doesn't Work*
db.something.find( { 'producer.company': 'ABC123' } )
Or even if I try
db.something.find( {producer: {company: 'ABC123'} } );
I get an error message saying.
TypeError: Converting circular structure to JSON
at Object.stringify (native)
at ServerResponse.res.json (../lib/response.js:185:19)
at ServerResponse.res.send (..//lib/response.js:117:21)
at ../routes/recipes.js:81:8
at Collection.find (../node_modules/mongodb/lib/mongodb/collection.js:931:5)
at ../routes/recipes.js:73:14
at Db.collection (../lib/mongodb/db.js:462:44)
at exports.findByCat (../routes/recipes.js:72:5)
at callbacks (../node_modules/express/lib/router/index.js:161:37)
at param (../node_modules/express/lib/router/index.js:135:11)
Can anybody help me find a workaround, or let me know if there are any errors with my approach.
Thanks!