import requests

url = "https://{FUSION HOST}/api/connectors/configs"

payload = {
    "parserId": "api-test-app",
    "id": "lucidworks_file_upload-api-test-app",
    "type": "lucidworks.file-upload",
    "collectionId": "api-test-app",
    "properties": {
        "mediaType": "application/octet-stream",
        "fileId": "pokedex.json.zip"
    },
    "pipelineId": "api-test-app"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

HttpResponse<String> response = Unirest.post("https://{FUSION HOST}/api/connectors/configs")
  .header("Content-Type", "application/json")
  .body("{\n  \"parserId\": \"api-test-app\",\n  \"id\": \"lucidworks_file_upload-api-test-app\",\n  \"type\": \"lucidworks.file-upload\",\n  \"collectionId\": \"api-test-app\",\n  \"properties\": {\n    \"mediaType\": \"application/octet-stream\",\n    \"fileId\": \"pokedex.json.zip\"\n  },\n  \"pipelineId\": \"api-test-app\"\n}")
  .asString();

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    parserId: 'api-test-app',
    id: 'lucidworks_file_upload-api-test-app',
    type: 'lucidworks.file-upload',
    collectionId: 'api-test-app',
    properties: {mediaType: 'application/octet-stream', fileId: 'pokedex.json.zip'},
    pipelineId: 'api-test-app'
  })
};

fetch('https://{FUSION HOST}/api/connectors/configs', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

require 'uri'
require 'net/http'

url = URI("https://{FUSION HOST}/api/connectors/configs")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"parserId\": \"api-test-app\",\n  \"id\": \"lucidworks_file_upload-api-test-app\",\n  \"type\": \"lucidworks.file-upload\",\n  \"collectionId\": \"api-test-app\",\n  \"properties\": {\n    \"mediaType\": \"application/octet-stream\",\n    \"fileId\": \"pokedex.json.zip\"\n  },\n  \"pipelineId\": \"api-test-app\"\n}"

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

package main

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

func main() {

	url := "https://{FUSION HOST}/api/connectors/configs"

	payload := strings.NewReader("{\n  \"parserId\": \"api-test-app\",\n  \"id\": \"lucidworks_file_upload-api-test-app\",\n  \"type\": \"lucidworks.file-upload\",\n  \"collectionId\": \"api-test-app\",\n  \"properties\": {\n    \"mediaType\": \"application/octet-stream\",\n    \"fileId\": \"pokedex.json.zip\"\n  },\n  \"pipelineId\": \"api-test-app\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{FUSION HOST}/api/connectors/configs",
  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([
    'parserId' => 'api-test-app',
    'id' => 'lucidworks_file_upload-api-test-app',
    'type' => 'lucidworks.file-upload',
    'collectionId' => 'api-test-app',
    'properties' => [
        'mediaType' => 'application/octet-stream',
        'fileId' => 'pokedex.json.zip'
    ],
    'pipelineId' => 'api-test-app'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

curl --request POST \
  --url https://{FUSION HOST}/api/connectors/configs \
  --header 'Content-Type: application/json' \
  --data '
{
  "parserId": "api-test-app",
  "id": "lucidworks_file_upload-api-test-app",
  "type": "lucidworks.file-upload",
  "collectionId": "api-test-app",
  "properties": {
    "mediaType": "application/octet-stream",
    "fileId": "pokedex.json.zip"
  },
  "pipelineId": "api-test-app"
}
'

{
  "parserId": "api-test-app",
  "coreProperties": {},
  "id": "lucidworks_file_upload-api-test-app",
  "type": "lucidworks.file-upload",
  "collectionId": "api-test-app",
  "properties": {
    "mediaType": "application/octet-stream",
    "fileId": "pokedex.json.zip"
  },
  "pipelineId": "api-test-app"
}