curl --request POST \
  --url https://api.tolk.every-day.io/v1/keys/diff \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "keys": [
    {
      "hash": "<string>",
      "sourceHash": "<string>"
    }
  ]
}
'

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.tolk.every-day.io/v1/keys/diff",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'keys' => [
        [
                'hash' => '<string>',
                'sourceHash' => '<string>'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({keys: [{hash: '<string>', sourceHash: '<string>'}]})
};

fetch('https://api.tolk.every-day.io/v1/keys/diff', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "data": {
    "new": [
      "<string>"
    ],
    "changed": [
      "<string>"
    ],
    "restored": [
      "<string>"
    ],
    "unchanged": 123
  }
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>",
  "errors": {}
}

{
  "message": "<string>"
}