import requests

url = "https://{FUSION HOST}/api/collections/{collection}/schema/fieldTypes/{fieldTypeId}"

payload = {
    "name": "<string>",
    "analyzer": {
        "tokenizer": { "class": "<string>" },
        "filters": [{ "class": "<string>" }],
        "type": "<string>",
        "class": "<string>"
    },
    "indexAnalyzer": {
        "tokenizer": { "class": "<string>" },
        "filters": [{ "class": "<string>" }],
        "type": "<string>",
        "class": "<string>"
    },
    "queryAnalyzer": {
        "tokenizer": { "class": "<string>" },
        "filters": [{ "class": "<string>" }],
        "type": "<string>",
        "class": "<string>"
    },
    "indexed": True,
    "stored": True,
    "multiValued": True,
    "positionIncrementGap": 123,
    "class": "<string>"
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

HttpResponse<String> response = Unirest.put("https://{FUSION HOST}/api/collections/{collection}/schema/fieldTypes/{fieldTypeId}")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"<string>\",\n  \"analyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"indexAnalyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"queryAnalyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"indexed\": true,\n  \"stored\": true,\n  \"multiValued\": true,\n  \"positionIncrementGap\": 123,\n  \"class\": \"<string>\"\n}")
  .asString();

const options = {
  method: 'PUT',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: '<string>',
    analyzer: {
      tokenizer: {class: '<string>'},
      filters: [{class: '<string>'}],
      type: '<string>',
      class: '<string>'
    },
    indexAnalyzer: {
      tokenizer: {class: '<string>'},
      filters: [{class: '<string>'}],
      type: '<string>',
      class: '<string>'
    },
    queryAnalyzer: {
      tokenizer: {class: '<string>'},
      filters: [{class: '<string>'}],
      type: '<string>',
      class: '<string>'
    },
    indexed: true,
    stored: true,
    multiValued: true,
    positionIncrementGap: 123,
    class: '<string>'
  })
};

fetch('https://{FUSION HOST}/api/collections/{collection}/schema/fieldTypes/{fieldTypeId}', 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/collections/{collection}/schema/fieldTypes/{fieldTypeId}")

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

request = Net::HTTP::Put.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"<string>\",\n  \"analyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"indexAnalyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"queryAnalyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"indexed\": true,\n  \"stored\": true,\n  \"multiValued\": true,\n  \"positionIncrementGap\": 123,\n  \"class\": \"<string>\"\n}"

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

package main

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

func main() {

	url := "https://{FUSION HOST}/api/collections/{collection}/schema/fieldTypes/{fieldTypeId}"

	payload := strings.NewReader("{\n  \"name\": \"<string>\",\n  \"analyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"indexAnalyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"queryAnalyzer\": {\n    \"tokenizer\": {\n      \"class\": \"<string>\"\n    },\n    \"filters\": [\n      {\n        \"class\": \"<string>\"\n      }\n    ],\n    \"type\": \"<string>\",\n    \"class\": \"<string>\"\n  },\n  \"indexed\": true,\n  \"stored\": true,\n  \"multiValued\": true,\n  \"positionIncrementGap\": 123,\n  \"class\": \"<string>\"\n}")

	req, _ := http.NewRequest("PUT", 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/collections/{collection}/schema/fieldTypes/{fieldTypeId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => '<string>',
    'analyzer' => [
        'tokenizer' => [
                'class' => '<string>'
        ],
        'filters' => [
                [
                                'class' => '<string>'
                ]
        ],
        'type' => '<string>',
        'class' => '<string>'
    ],
    'indexAnalyzer' => [
        'tokenizer' => [
                'class' => '<string>'
        ],
        'filters' => [
                [
                                'class' => '<string>'
                ]
        ],
        'type' => '<string>',
        'class' => '<string>'
    ],
    'queryAnalyzer' => [
        'tokenizer' => [
                'class' => '<string>'
        ],
        'filters' => [
                [
                                'class' => '<string>'
                ]
        ],
        'type' => '<string>',
        'class' => '<string>'
    ],
    'indexed' => true,
    'stored' => true,
    'multiValued' => true,
    'positionIncrementGap' => 123,
    'class' => '<string>'
  ]),
  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 PUT \
  --url https://{FUSION HOST}/api/collections/{collection}/schema/fieldTypes/{fieldTypeId} \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "analyzer": {
    "tokenizer": {
      "class": "<string>"
    },
    "filters": [
      {
        "class": "<string>"
      }
    ],
    "type": "<string>",
    "class": "<string>"
  },
  "indexAnalyzer": {
    "tokenizer": {
      "class": "<string>"
    },
    "filters": [
      {
        "class": "<string>"
      }
    ],
    "type": "<string>",
    "class": "<string>"
  },
  "queryAnalyzer": {
    "tokenizer": {
      "class": "<string>"
    },
    "filters": [
      {
        "class": "<string>"
      }
    ],
    "type": "<string>",
    "class": "<string>"
  },
  "indexed": true,
  "stored": true,
  "multiValued": true,
  "positionIncrementGap": 123,
  "class": "<string>"
}
'

This response has no body data.