How to Call cURL Without Using Server-Side Cache?

The -H 'Cache-Control: no-cache' argument is not guaranteed to work because the remote server or any proxy layers in between can ignore it. If it doesn't work, you can do it the old-fashioned way, by adding a unique querystring parameter. Usually, the servers/proxies will think it's a unique URL and not use the cache.

curl ""

You have to use a different querystring value every time, though. Otherwise, the server/proxies will match the cache again. To automatically generate a different querystring parameter every time, you can use date +%s, which will return the seconds since epoch.

curl "(date +%s)"

Neither -H 'Pragma: no-cache' nor -H 'Cache-Control: no-cache' helped me. In browser with "cmd+shift+r" (full reload) I was seeing a new version than the output of curl in terminal.

How to debug for yourself

To get the exact same result, I went to browser > F12 (Dev Tools) > Network/Requests > Right-click on the request > "Copy as cURL" and got the equivalent cURL command to the browser's call.

Then, I pasted that in the terminal and started removing the params one by one, until I found that surprisingly --compressed was making a difference in my case. (Calling CloudFront AWS)

My problem is I should use single quotes in a query string.

My code

if (event.queryStringParameters && event.queryStringParameters['Name']) {
    responseMessage = 'Hello, ' + event.queryStringParameters['Name'] + '!';
  }

My requests

curl 

returns zsh: no matches found

curl '   

returns {"message":"Hello, Terraform!"}