Question

How can I get POST request JSON body?

Posted on July 29, 2022
Serverless DigitalOcean Functions PHP
Asked by Tom Glod

Hi,

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!

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

• August 26, 2022

Accepted Answer

Hi there,

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

<?php
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": "123.123.123.123",
    "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": "123.123.123.123",
    "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:

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