How do I POST JSON data with cURL?

Question

Aryan Kumar · Answer

To POST JSON data with cURL, you can use the following steps:

Code snippet

{
  "name": "John Doe",
  "email": "johndoe@example.com"
}

Code snippet

curl -X POST -H "Content-Type: application/json" -d @post.json http://localhost:8080/api/v1/users

This will POST the JSON data to the URL http://localhost:8080/api/v1/users. If the POST is successful, you will see the following output:

Code snippet

{"id":1,"name":"John Doe","email":"johndoe@example.com"}

You can also use the following command to POST the JSON data:

Code snippet

curl -X POST -H "Content-Type: application/json" -d '{
  "name": "John Doe",
  "email": "johndoe@example.com"
}' http://localhost:8080/api/v1/users

This is the same as the previous command, but it uses the JSON format instead of the JSON string format.

Here are some additional tips for POSTing JSON data with cURL:

Use the -H "Content-Type: application/json" header to specify that the data is JSON.
Use the -d option to specify the JSON data.
Use the @ character to specify the file that contains the JSON data.
Use the -X POST option to specify that the request is a POST request.
Use the http://localhost:8080/api/v1/users URL to POST the data to the API

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