How can I get POST request JSON body?


What is the best way to get the JSON content of a POST request in a serverless function. The traditional way does not work. (traditional function for this is file_get_contents(‘php://input’))

Has anyone done this successfully? TIA

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Bobby Iliev
Site Moderator
Site Moderator badge
August 26, 2022
Accepted Answer

Hi there,

I believe that you should be able to just use the function arguments, for example:

function main(array $args) : array
    return ["body" => $args];

The following function should contain all of your required data, if you were to make a POST request you would get the following response:

  • Request example:
curl -X POST https://your_function_host_here -H "Content-Type: application/json"  -d '{"name": "Bobby"}'
  • You would get the following response:
  "__ow_headers": {
    "accept": "*/*",
    "accept-encoding": "gzip",
    "cdn-loop": "cloudflare",
    "cf-connecting-ip": "",
    "cf-ipcountry": "US",
    "cf-ray": "someidhere-SOF",
    "cf-visitor": "{\"scheme\":\"https\"}",
    "content-type": "application/json",
    "host": "ccontroller",
    "user-agent": "curl/7.79.1",
    "x-forwarded-for": "",
    "x-forwarded-proto": "https",
    "x-request-id": "some_request_here"
  "__ow_method": "post",
  "__ow_path": "",
  "name": "Bobby"

So, let’s say you wanted to access the name value only, you could do the following:

function main(array $args) : array
    $name = $args["name"] ?? "stranger";
    $greeting = "Hello $name!";
    echo $greeting;
    return ["body" => $greeting];

Hope that this helps.



Try DigitalOcean for free

Click below to sign up and get $200 of credit to try our products over 60 days!

Sign up

Featured on Community

Get our biweekly newsletter

Sign up for Infrastructure as a Newsletter.

Hollie's Hub for Good

Working on improving health and education, reducing inequality, and spurring economic growth? We'd like to help.

Become a contributor

Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.

Welcome to the developer cloud

DigitalOcean makes it simple to launch in the cloud and scale up as you grow — whether you're running one virtual machine or ten thousand.

Learn more
DigitalOcean Cloud Control Panel