curl --request POST \
  --url https://sandbox.tight.com/v6/templates/chartOfAccounts/{templateId}/mapping \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "mappings": [
    {
      "globalGlAccountId": "ggla_123456",
      "templateGlAccountIds": [
        "[\"tgla_123456\"]"
      ]
    }
  ]
}
'

import requests

url = "https://sandbox.tight.com/v6/templates/chartOfAccounts/{templateId}/mapping"

payload = { "mappings": [
        {
            "globalGlAccountId": "ggla_123456",
            "templateGlAccountIds": ["[\"tgla_123456\"]"]
        }
    ] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    mappings: [{globalGlAccountId: 'ggla_123456', templateGlAccountIds: ['["tgla_123456"]']}]
  })
};

fetch('https://sandbox.tight.com/v6/templates/chartOfAccounts/{templateId}/mapping', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://sandbox.tight.com/v6/templates/chartOfAccounts/{templateId}/mapping",
  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([
    'mappings' => [
        [
                'globalGlAccountId' => 'ggla_123456',
                'templateGlAccountIds' => [
                                '["tgla_123456"]'
                ]
        ]
    ]
  ]),
  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://sandbox.tight.com/v6/templates/chartOfAccounts/{templateId}/mapping"

	payload := strings.NewReader("{\n  \"mappings\": [\n    {\n      \"globalGlAccountId\": \"ggla_123456\",\n      \"templateGlAccountIds\": [\n        \"[\\\"tgla_123456\\\"]\"\n      ]\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", 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.post("https://sandbox.tight.com/v6/templates/chartOfAccounts/{templateId}/mapping")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"mappings\": [\n    {\n      \"globalGlAccountId\": \"ggla_123456\",\n      \"templateGlAccountIds\": [\n        \"[\\\"tgla_123456\\\"]\"\n      ]\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.tight.com/v6/templates/chartOfAccounts/{templateId}/mapping")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"mappings\": [\n    {\n      \"globalGlAccountId\": \"ggla_123456\",\n      \"templateGlAccountIds\": [\n        \"[\\\"tgla_123456\\\"]\"\n      ]\n    }\n  ]\n}"

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

{
  "data": {
    "id": "tcoa_123456",
    "name": "Standard Business",
    "status": "ACTIVE",
    "isPending": true,
    "isDefault": true,
    "accounts": [
      {
        "id": "tgla_324231",
        "accountNo": "11500",
        "name": "Accounts Receivable",
        "level": 3,
        "type": "ASSET",
        "subType": "AR",
        "children": "<array>",
        "entityType": "S_CORP",
        "taxCategory": "SCHEDULE_C",
        "customData": {
          "internal_key": "some_internal_key",
          "some_other_field": 23434
        }
      }
    ],
    "globalGlAccountMappings": [
      {
        "id": "ggla_123456",
        "name": "<string>",
        "mappedTemplateGlAccounts": [
          {
            "id": "tgla_123456",
            "name": "<string>"
          }
        ],
        "children": "<array>"
      }
    ],
    "businessTypeId": "bzt_123456"
  }
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "REQUIRED",
      "message": "Amount is required",
      "param": "amount"
    }
  ]
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "INVALID_TOKEN",
      "message": "Invalid access token"
    }
  ]
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "FORBIDDEN",
      "message": "Expired access token"
    }
  ]
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "BAD_REQUEST",
      "message": "Resource not found"
    }
  ]
}

{
  "result": "FAILURE",
  "error": [
    {
      "type": "UNKNOWN_ERROR",
      "message": "Something went wrong. Please try again later."
    }
  ]
}