MongoServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 at Timeout._onTimeout (D:\javascriptApps\node_modules\mongodb\lib\core\sdam\topology.js:428:30)
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1Please follow proper question format rather than just copy pasting the error as a question. – Vipul Patil Feb 20 '20 at 09:41
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Does this answer your question? [MongoError: connect ECONNREFUSED 127.0.0.1:27017](https://stackoverflow.com/questions/46523321/mongoerror-connect-econnrefused-127-0-0-127017) – Amir Hossein Jun 07 '20 at 12:32
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The error ECONNREFUSED is nothing but the connection have been refused. There is no process endpoint listening on local 127.0.0.1:27017
Before connecting to the database, make sure to install mongodb and start the database server. From command prompt, go to where your mongo installations is situated and run command:
mongod --port 27017 --dbpath C:\path_to_data_folder
You may find it useful Start MondoDB Process

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