curl --request PUT \
  --url https://api.flatpeak.com/meters/cumulative/epoch \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "location_id": "loc_641b90b758fb8e6293716e40",
  "units": "WH",
  "data": [
    {
      "time": 1721991392,
      "value": 1553,
      "record_reference_id": "MET1234567890"
    }
  ],
  "device_id": "dev_65e6d8334c8d715963d99db3",
  "session_reference_id": "SESSION1234567890",
  "energy_flow_direction": "INBOUND",
  "tariff_direction": "IMPORT"
}
'

import requests

url = "https://api.flatpeak.com/meters/cumulative/epoch"

payload = {
    "location_id": "loc_641b90b758fb8e6293716e40",
    "units": "WH",
    "data": [
        {
            "time": 1721991392,
            "value": 1553,
            "record_reference_id": "MET1234567890"
        }
    ],
    "device_id": "dev_65e6d8334c8d715963d99db3",
    "session_reference_id": "SESSION1234567890",
    "energy_flow_direction": "INBOUND",
    "tariff_direction": "IMPORT"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    location_id: 'loc_641b90b758fb8e6293716e40',
    units: 'WH',
    data: [{time: 1721991392, value: 1553, record_reference_id: 'MET1234567890'}],
    device_id: 'dev_65e6d8334c8d715963d99db3',
    session_reference_id: 'SESSION1234567890',
    energy_flow_direction: 'INBOUND',
    tariff_direction: 'IMPORT'
  })
};

fetch('https://api.flatpeak.com/meters/cumulative/epoch', 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://api.flatpeak.com/meters/cumulative/epoch",
  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([
    'location_id' => 'loc_641b90b758fb8e6293716e40',
    'units' => 'WH',
    'data' => [
        [
                'time' => 1721991392,
                'value' => 1553,
                'record_reference_id' => 'MET1234567890'
        ]
    ],
    'device_id' => 'dev_65e6d8334c8d715963d99db3',
    'session_reference_id' => 'SESSION1234567890',
    'energy_flow_direction' => 'INBOUND',
    'tariff_direction' => 'IMPORT'
  ]),
  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://api.flatpeak.com/meters/cumulative/epoch"

	payload := strings.NewReader("{\n  \"location_id\": \"loc_641b90b758fb8e6293716e40\",\n  \"units\": \"WH\",\n  \"data\": [\n    {\n      \"time\": 1721991392,\n      \"value\": 1553,\n      \"record_reference_id\": \"MET1234567890\"\n    }\n  ],\n  \"device_id\": \"dev_65e6d8334c8d715963d99db3\",\n  \"session_reference_id\": \"SESSION1234567890\",\n  \"energy_flow_direction\": \"INBOUND\",\n  \"tariff_direction\": \"IMPORT\"\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://api.flatpeak.com/meters/cumulative/epoch")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"location_id\": \"loc_641b90b758fb8e6293716e40\",\n  \"units\": \"WH\",\n  \"data\": [\n    {\n      \"time\": 1721991392,\n      \"value\": 1553,\n      \"record_reference_id\": \"MET1234567890\"\n    }\n  ],\n  \"device_id\": \"dev_65e6d8334c8d715963d99db3\",\n  \"session_reference_id\": \"SESSION1234567890\",\n  \"energy_flow_direction\": \"INBOUND\",\n  \"tariff_direction\": \"IMPORT\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.flatpeak.com/meters/cumulative/epoch")

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  \"location_id\": \"loc_641b90b758fb8e6293716e40\",\n  \"units\": \"WH\",\n  \"data\": [\n    {\n      \"time\": 1721991392,\n      \"value\": 1553,\n      \"record_reference_id\": \"MET1234567890\"\n    }\n  ],\n  \"device_id\": \"dev_65e6d8334c8d715963d99db3\",\n  \"session_reference_id\": \"SESSION1234567890\",\n  \"energy_flow_direction\": \"INBOUND\",\n  \"tariff_direction\": \"IMPORT\"\n}"

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

{
  "id": "bat_65e42b7827c0526548432b9f",
  "object": "meter_batch",
  "records_submitted": 18379,
  "records_accepted": 18378,
  "records_processed": 32,
  "failed_records": [
    {
      "record_num": 1,
      "error": "end_time must not be before start_time",
      "record_reference_id": "MET1234567890"
    }
  ],
  "time_created": "2023-11-07T05:31:56Z",
  "account_id": "acc_661677911f2197045e6cf1b1"
}

{
  "object": "error",
  "type": "invalid_request",
  "code": "access_denied",
  "time_created": "2025-01-01T00:00:00Z"
}

{
  "object": "error",
  "type": "rate_limit",
  "code": "too_many_requests",
  "message": "Too many requests. Please retry after a short delay.",
  "time_created": "2026-01-29T17:11:52Z"
}