loopbackjs - Loopback + MongoDB, AutoMigrate giving error -

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i'm trying follow getting started loopback instead of connecting mysql instance i'm trying connect mongodb instance running on localhost (default port 27017).

while following steps i'm executing node . given @ connect api data source giving me following error , node stopping.

d:\testloopback\node_modules\loopback-connector-mongodb\node_modules\mongodb\lib\utils.js:98

process.nexttick(function() { throw err; });                               ^ validationerror: `coffeeshop` instance not valid.

details: name can't blank (value: undefined).,validationerror: coffeeshop instance not valid. details: name can't blank (value: undefined).,validationerror: coffeeshop instance not valid. details: name can't blank (value: undefined).

can me understand error , how can resolve it?

my datasources.json file has:

{ "db": { "name": "db", "connector": "memory" }, "mongods": { "name": "mongods", "connector": "mongodb", "host": "localhost", "port": 27017, "database": "testloopbackdb" } }

i've not set authentication on mongodb no username / password specified.

befor using collection mongodb if using ready made collection of mongodb first discover model , use in loopback application. discover model use following script in server/bin/discover.js

var path = require('path'); var fs = require('fs'); var app = require(path.resolve(__dirname, '../server')); var outputpath = path.resolve(__dirname, '../../common/models');  var datasource = app.datasources.mongods;  function schemacb(err, schema) {   if(schema) {     console.log("auto discovery success: " + schema.name);     var outputname = outputpath + '/' +schema.name + '.json';     fs.writefile(outputname, json.stringify(schema, null, 2), function(err) {       if(err) {         console.log(err);       } else {         console.log("json saved " + outputname);       }     });   }   if(err) {     console.error(err);     return;   }   return; };  datasource.discoverschema('coffeeshop',{schema:'testloopbackdb'},schemacb);

run above script discover , build model [node server/bin/disovery.js] after in server/model-config.json add after last object.

"coffeeshop": {     "datasource": "mongods",     "public": true   }

now run loopback application.


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