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Lossless Image Scaling

Provides a lossless image scaling API service, enabling developers to quickly process lossless image resizing and integrate it into business systems.

Documentation

Lossless Image Scaling API Overview

The Lossless Image Scaling API helps developers quickly implement lossless image resizing within their systems. It returns structured results and is ideal for content processing, automated production, and business integration.

Use Cases

Integrate lossless image scaling capabilities into internal systems, SaaS platforms, automated workflows, or admin dashboards.
Suitable for business scenarios requiring stable API calls, standardized responses, and orchestratable interfaces.
We recommend implementing rate limiting, retry mechanisms, and result caching strategies to improve overall integration stability.

Integration Guidelines

Verify request parameter formats, authentication methods, and error code handling logic before integration.
For high-frequency processing scenarios, implement robust log tracking, timeout controls, and idempotency handling.
If the results are used for risk control or automated decision-making, we recommend applying secondary validation based on your business rules rather than relying solely on the API response.

Integration Examples

Includes ready-to-use Shell, Python, Go, Java, and PHP examples for direct integration.

Request Example

{
  "imageUrl": "https://example.com/photo.jpg",
  "width": 300,
  "height": 400
}

Response Example

{
  "code": "SUCCESS",
  "message": "success",
  "data": {
    "resultUrl": "https://example.com/thumb.jpg",
    "width": 300,
    "height": 400
  }
}

Request Fields

The fields below are derived from example JSON for integration reference only.

Path	Type	Sample
imageUrl	string	https://example.com/photo.jpg
width	number	300
height	number	400

Response Fields

The fields below are derived from example JSON for integration reference only.

Path	Type	Sample
code	string	SUCCESS
message	string	success
data	object	{...}
data.resultUrl	string	https://example.com/thumb.jpg
data.width	number	300
data.height	number	400

curl --request POST \ --url 'https://openapi.toolkk.com/v1/image-thumbnail' \ --header 'Content-Type: application/json' \ --header 'X-API-Key: YOUR_API_KEY' \ --data '{\n "imageUrl": "https://example.com/photo.jpg",\n "width": 300,\n "height": 400\n}'

import os import requests url = "https://openapi.toolkk.com/v1/image-thumbnail" payload = { "imageUrl": "https://example.com/photo.jpg", "width": 300, "height": 400 } headers = { "Content-Type": "application/json", "X-API-Key": os.getenv("TOOLKK_API_KEY", "YOUR_API_KEY"), } response = requests.request("POST", url, headers=headers, json=payload, timeout=30) response.raise_for_status() print(response.json())

package main import ( "bytes" "fmt" "io" "net/http" ) func main() { endpoint := "https://openapi.toolkk.com/v1/image-thumbnail" payload := []byte("{\n \"imageUrl\": \"https://example.com/photo.jpg\",\n \"width\": 300,\n \"height\": 400\n}") req, err := http.NewRequest("POST", endpoint, bytes.NewBuffer(payload)) if err != nil { panic(err) } req.Header.Set("Content-Type", "application/json") req.Header.Set("X-API-Key", "YOUR_API_KEY") resp, err := http.DefaultClient.Do(req) if err != nil { panic(err) } defer resp.Body.Close() body, err := io.ReadAll(resp.Body) if err != nil { panic(err) } fmt.Println(string(body)) }

import java.net.URI; import java.net.http.HttpClient; import java.net.http.HttpRequest; import java.net.http.HttpResponse; public class ToolkkExample { public static void main(String[] args) throws Exception { String payload = "{\n \"imageUrl\": \"https://example.com/photo.jpg\",\n \"width\": 300,\n \"height\": 400\n}"; HttpRequest request = HttpRequest.newBuilder() .uri(URI.create("https://openapi.toolkk.com/v1/image-thumbnail")) .method("POST", HttpRequest.BodyPublishers.ofString(payload)) .header("Content-Type", "application/json") .header("X-API-Key", "YOUR_API_KEY") .build(); HttpResponse<String> response = HttpClient.newHttpClient() .send(request, HttpResponse.BodyHandlers.ofString()); System.out.println(response.body()); } }

<?php $endpoint = 'https://openapi.toolkk.com/v1/image-thumbnail'; $payload = "{\n \"imageUrl\": \"https://example.com/photo.jpg\",\n \"width\": 300,\n \"height\": 400\n}"; $ch = curl_init($endpoint); curl_setopt_array($ch, [ CURLOPT_RETURNTRANSFER => true, CURLOPT_CUSTOMREQUEST => 'POST', CURLOPT_HTTPHEADER => [ 'Content-Type: application/json', 'X-API-Key: YOUR_API_KEY', ], CURLOPT_POSTFIELDS => $payload, ]); $response = curl_exec($ch); if ($response === false) { throw new RuntimeException(curl_error($ch)); } curl_close($ch); echo $response;

Lossless Image Scaling

Documentation