Sending Post request with curl using nested objects

Your curl command had extra double quotes. Please try:

curl -H 'Content-Type: application/json' -X POST -d '{"categories": { "name" :1, "url_name" : "example" }}' http://localhost:4200/add

node.js curl mongoose

Your curl request is not formatted correctly. Try:

curl \  -H 'Content-Type: application/json' \  -X POST \  -d '{"categories": { "name" :1, "url_name": "example" }}' \  http://localhost:4200/add

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