curl --request PUT \
  --url https://app.teable.ai/api/table/%7BtableId%7D/field/%7BfieldId%7D/convert \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN' \
  --header 'content-type: application/json' \
  --data '{"type":"singleSelect","name":"string","unique":true,"notNull":true,"dbFieldName":"string","isLookup":true,"isConditionalLookup":true,"description":"this is a summary","lookupOptions":{"foreignTableId":"string","lookupFieldId":"string","linkFieldId":"string","filter":{}},"options":{"expression":"countall({values})","timeZone":"string","formatting":null,"showAs":{"type":"url"}},"aiConfig":{"modelKey":"string","isAutoFill":true,"attachPrompt":"string","type":"extraction","sourceFieldId":"string"}}'

const url = 'https://app.teable.ai/api/table/%7BtableId%7D/field/%7BfieldId%7D/convert';
const options = {
  method: 'PUT',
  headers: {
    Authorization: 'Bearer REPLACE_BEARER_TOKEN',
    'content-type': 'application/json'
  },
  body: '{"type":"singleSelect","name":"string","unique":true,"notNull":true,"dbFieldName":"string","isLookup":true,"isConditionalLookup":true,"description":"this is a summary","lookupOptions":{"foreignTableId":"string","lookupFieldId":"string","linkFieldId":"string","filter":{}},"options":{"expression":"countall({values})","timeZone":"string","formatting":null,"showAs":{"type":"url"}},"aiConfig":{"modelKey":"string","isAutoFill":true,"attachPrompt":"string","type":"extraction","sourceFieldId":"string"}}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}

const http = require('https');

const options = {
  method: 'PUT',
  hostname: 'app.teable.ai',
  port: null,
  path: '/api/table/%7BtableId%7D/field/%7BfieldId%7D/convert',
  headers: {
    Authorization: 'Bearer REPLACE_BEARER_TOKEN',
    'content-type': 'application/json'
  }
};

const req = http.request(options, function (res) {
  const chunks = [];

  res.on('data', function (chunk) {
    chunks.push(chunk);
  });

  res.on('end', function () {
    const body = Buffer.concat(chunks);
    console.log(body.toString());
  });
});

req.write(JSON.stringify({
  type: 'singleSelect',
  name: 'string',
  unique: true,
  notNull: true,
  dbFieldName: 'string',
  isLookup: true,
  isConditionalLookup: true,
  description: 'this is a summary',
  lookupOptions: {
    foreignTableId: 'string',
    lookupFieldId: 'string',
    linkFieldId: 'string',
    filter: {}
  },
  options: {
    expression: 'countall({values})',
    timeZone: 'string',
    formatting: null,
    showAs: {type: 'url'}
  },
  aiConfig: {
    modelKey: 'string',
    isAutoFill: true,
    attachPrompt: 'string',
    type: 'extraction',
    sourceFieldId: 'string'
  }
}));
req.end();

import http.client

conn = http.client.HTTPSConnection("app.teable.ai")

payload = "{\"type\":\"singleSelect\",\"name\":\"string\",\"unique\":true,\"notNull\":true,\"dbFieldName\":\"string\",\"isLookup\":true,\"isConditionalLookup\":true,\"description\":\"this is a summary\",\"lookupOptions\":{\"foreignTableId\":\"string\",\"lookupFieldId\":\"string\",\"linkFieldId\":\"string\",\"filter\":{}},\"options\":{\"expression\":\"countall({values})\",\"timeZone\":\"string\",\"formatting\":null,\"showAs\":{\"type\":\"url\"}},\"aiConfig\":{\"modelKey\":\"string\",\"isAutoFill\":true,\"attachPrompt\":\"string\",\"type\":\"extraction\",\"sourceFieldId\":\"string\"}}"

headers = {
    'Authorization': "Bearer REPLACE_BEARER_TOKEN",
    'content-type': "application/json"
}

conn.request("PUT", "/api/table/%7BtableId%7D/field/%7BfieldId%7D/convert", payload, headers)

res = conn.getresponse()
data = res.read()

print(data.decode("utf-8"))

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.teable.ai/api/table/{tableId}/field/{fieldId}/convert",
  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([
    'type' => 'singleSelect',
    'name' => '<string>',
    'unique' => true,
    'notNull' => true,
    'dbFieldName' => '<string>',
    'isLookup' => true,
    'isConditionalLookup' => true,
    'description' => 'this is a summary',
    'lookupOptions' => [
        'foreignTableId' => '<string>',
        'lookupFieldId' => '<string>',
        'linkFieldId' => '<string>',
        'filter' => [
                
        ]
    ],
    'options' => [
        'timeZone' => '<string>',
        'formatting' => '<unknown>',
        'showAs' => [
                
        ]
    ],
    'aiConfig' => [
        'modelKey' => '<string>',
        'type' => 'extraction',
        'sourceFieldId' => '<string>',
        'isAutoFill' => true,
        'attachPrompt' => '<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;
}

package main

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

func main() {

	url := "https://app.teable.ai/api/table/{tableId}/field/{fieldId}/convert"

	payload := strings.NewReader("{\n  \"type\": \"singleSelect\",\n  \"name\": \"<string>\",\n  \"unique\": true,\n  \"notNull\": true,\n  \"dbFieldName\": \"<string>\",\n  \"isLookup\": true,\n  \"isConditionalLookup\": true,\n  \"description\": \"this is a summary\",\n  \"lookupOptions\": {\n    \"foreignTableId\": \"<string>\",\n    \"lookupFieldId\": \"<string>\",\n    \"linkFieldId\": \"<string>\",\n    \"filter\": {}\n  },\n  \"options\": {\n    \"timeZone\": \"<string>\",\n    \"formatting\": \"<unknown>\",\n    \"showAs\": {}\n  },\n  \"aiConfig\": {\n    \"modelKey\": \"<string>\",\n    \"type\": \"extraction\",\n    \"sourceFieldId\": \"<string>\",\n    \"isAutoFill\": true,\n    \"attachPrompt\": \"<string>\"\n  }\n}")

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

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

}

HttpResponse<String> response = Unirest.put("https://app.teable.ai/api/table/{tableId}/field/{fieldId}/convert")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"type\": \"singleSelect\",\n  \"name\": \"<string>\",\n  \"unique\": true,\n  \"notNull\": true,\n  \"dbFieldName\": \"<string>\",\n  \"isLookup\": true,\n  \"isConditionalLookup\": true,\n  \"description\": \"this is a summary\",\n  \"lookupOptions\": {\n    \"foreignTableId\": \"<string>\",\n    \"lookupFieldId\": \"<string>\",\n    \"linkFieldId\": \"<string>\",\n    \"filter\": {}\n  },\n  \"options\": {\n    \"timeZone\": \"<string>\",\n    \"formatting\": \"<unknown>\",\n    \"showAs\": {}\n  },\n  \"aiConfig\": {\n    \"modelKey\": \"<string>\",\n    \"type\": \"extraction\",\n    \"sourceFieldId\": \"<string>\",\n    \"isAutoFill\": true,\n    \"attachPrompt\": \"<string>\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.teable.ai/api/table/{tableId}/field/{fieldId}/convert")

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

request = Net::HTTP::Put.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"type\": \"singleSelect\",\n  \"name\": \"<string>\",\n  \"unique\": true,\n  \"notNull\": true,\n  \"dbFieldName\": \"<string>\",\n  \"isLookup\": true,\n  \"isConditionalLookup\": true,\n  \"description\": \"this is a summary\",\n  \"lookupOptions\": {\n    \"foreignTableId\": \"<string>\",\n    \"lookupFieldId\": \"<string>\",\n    \"linkFieldId\": \"<string>\",\n    \"filter\": {}\n  },\n  \"options\": {\n    \"timeZone\": \"<string>\",\n    \"formatting\": \"<unknown>\",\n    \"showAs\": {}\n  },\n  \"aiConfig\": {\n    \"modelKey\": \"<string>\",\n    \"type\": \"extraction\",\n    \"sourceFieldId\": \"<string>\",\n    \"isAutoFill\": true,\n    \"attachPrompt\": \"<string>\"\n  }\n}"

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

{
  "id": "<string>",
  "name": "Tags",
  "type": "singleSelect",
  "options": {
    "expression": "countall({values})",
    "timeZone": "<string>",
    "formatting": "<unknown>",
    "showAs": {
      "type": "url"
    }
  },
  "cellValueType": "string",
  "dbFieldType": "TEXT",
  "dbFieldName": "<string>",
  "description": "this is a summary",
  "meta": {
    "persistedAsGeneratedColumn": false
  },
  "aiConfig": {
    "modelKey": "<string>",
    "type": "extraction",
    "sourceFieldId": "<string>",
    "isAutoFill": true,
    "attachPrompt": "<string>"
  },
  "isLookup": true,
  "isConditionalLookup": true,
  "lookupOptions": {
    "relationship": "oneOne",
    "foreignTableId": "<string>",
    "lookupFieldId": "<string>",
    "fkHostTableName": "<string>",
    "selfKeyName": "<string>",
    "foreignKeyName": "<string>",
    "linkFieldId": "<string>",
    "baseId": "<string>",
    "filter": {}
  },
  "notNull": true,
  "unique": true,
  "isPrimary": true,
  "isComputed": true,
  "isPending": true,
  "hasError": true,
  "isMultipleCellValue": true,
  "recordRead": true,
  "recordCreate": true
}