curl --request HEAD \
  --url http://127.0.0.1:8189/api/v2/assets/by-hash/{hash} \
  --header 'Authorization: Bearer <token>'

import requests

url = "http://127.0.0.1:8189/api/v2/assets/by-hash/{hash}"

headers = {"Authorization": "Bearer <token>"}

response = requests.head(url, headers=headers)

print(response.text)

const options = {method: 'HEAD', headers: {Authorization: 'Bearer <token>'}};

fetch('http://127.0.0.1:8189/api/v2/assets/by-hash/{hash}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_PORT => "8189",
  CURLOPT_URL => "http://127.0.0.1:8189/api/v2/assets/by-hash/{hash}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "HEAD",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "http://127.0.0.1:8189/api/v2/assets/by-hash/{hash}"

	req, _ := http.NewRequest("HEAD", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.head("http://127.0.0.1:8189/api/v2/assets/by-hash/{hash}")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("http://127.0.0.1:8189/api/v2/assets/by-hash/{hash}")

http = Net::HTTP.new(url.host, url.port)

request = Net::HTTP::Head.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "error": {
    "code": "invalid_workflow",
    "message": "Node 12 (KSampler): required input 'model' is not connected",
    "details": {
      "node_errors": {
        "12": {
          "class_type": "SomeCustomNode",
          "errors": [
            {
              "type": "unknown_node_class",
              "message": "this deployment's build does not contain the node class SomeCustomNode."
            }
          ]
        }
      },
      "unknown_node_classes": [
        "SomeCustomNode"
      ]
    }
  }
}

{
  "error": {
    "code": "invalid_workflow",
    "message": "Node 12 (KSampler): required input 'model' is not connected",
    "details": {
      "node_errors": {
        "12": {
          "class_type": "SomeCustomNode",
          "errors": [
            {
              "type": "unknown_node_class",
              "message": "this deployment's build does not contain the node class SomeCustomNode."
            }
          ]
        }
      },
      "unknown_node_classes": [
        "SomeCustomNode"
      ]
    }
  }
}

{
  "error": {
    "code": "invalid_workflow",
    "message": "Node 12 (KSampler): required input 'model' is not connected",
    "details": {
      "node_errors": {
        "12": {
          "class_type": "SomeCustomNode",
          "errors": [
            {
              "type": "unknown_node_class",
              "message": "this deployment's build does not contain the node class SomeCustomNode."
            }
          ]
        }
      },
      "unknown_node_classes": [
        "SomeCustomNode"
      ]
    }
  }
}

{
  "error": {
    "code": "invalid_workflow",
    "message": "Node 12 (KSampler): required input 'model' is not connected",
    "details": {
      "node_errors": {
        "12": {
          "class_type": "SomeCustomNode",
          "errors": [
            {
              "type": "unknown_node_class",
              "message": "this deployment's build does not contain the node class SomeCustomNode."
            }
          ]
        }
      },
      "unknown_node_classes": [
        "SomeCustomNode"
      ]
    }
  }
}