Basis data Cloud Recognition (CRS) biasanya menyimpan sejumlah besar gambar target. Untuk membantu pengembang menemukan dan mengelola data ini dengan cepat, bab ini akan menjelaskan secara rinci cara melihat, melakukan kueri halaman, dan detail gambar target.
Dalam antarmuka visual, sistem secara default menampilkan gambar target dalam bentuk daftar halaman dan diurutkan berdasarkan waktu modifikasi terakhir dalam urutan terbalik (perubahan terbaru ditempatkan di depan).
Setelah masuk ke halaman detail, Anda dapat melihat semua properti gambar target, termasuk:
Untuk pengembang yang perlu mengintegrasikannya ke backend mereka sendiri, disarankan menggunakan REST API untuk manajemen.
Sebelum mengirim permintaan, pastikan Anda telah menyiapkan informasi berikut (detailnya merujuk ke Daftar Persiapan Panggilan API):
Terapkan pengganti sebagai parameter sebenarnya dan jalankan skrip curl
- Your-Server-side-URL → Host API aktual
- Your-Token → Token Otorisasi Kunci API aktual
- Your-CRS-AppId → appId Anda
curl -X GET "https://<Your Server-side-URL>/targets/infos?appId=<Your-CRS-AppId>" \
-H "Content-Type: application/json" \
-H "Authorization: <Your-Token>"
Unduh contoh kode Java
Impor proyek melalui metode Maven
Langkah 1. Buka file kode terkait ListTargets.java
Langkah 2. Ubah variabel global, ganti parameter autentikasi dari daftar persiapan Anda
- CRS AppId
- API Key / API Secret
- TARGET_MGMT_URL → URL Server-end
public class ListTargets {
private static final String TARGET_MGMT_URL = "http://cn1.crs.easyar.com:8888";
private static final String CRS_APPID = "--here is your CRS AppId--";
private static final String API_KEY = "--here is your API Key--";
private static final String API_SECRET = "--here is your API Secret--";
public String list(Auth auth) throws IOException {
OkHttpClient client = new OkHttpClient.Builder().build();
JSONObject params = new JSONObject();
Auth.signParam(params, auth.getAppId(), auth.getApiKey(), auth.getApiSecret());
okhttp3.Request request = new okhttp3.Request.Builder()
.url(auth.getCloudURL() + "/targets/infos?"+ Common.toParam(params))
.get()
.build();
Response response = client.newCall(request).execute();
return response.body().string();
}
public static void main(String[] args) throws IOException{
Auth accessInfo = new Auth(CRS_APPID, API_KEY, API_SECRET, TARGET_MGMT_URL);
System.out.println(new ListTargets().list(accessInfo));
}
}
Langkah 3. Jalankan Main
Unduh contoh kode NodeJS
Langkah 1. Konfigurasi berkas kunci keys.json
- CRS AppId
- API Key / API Secret
{
"appId": "--here is your appId for CRS App Instance for SDK 4--",
"apiKey": "--here is your api key which is create from website and which has crs permission--",
"apiSecret": "--here is your api secret which is create from website--"
}
Langkah 2. Jalankan, tentukan berkas kunci dan URL Server-end
node bin/getTargets -t <Server-end-URL> -c keys.json
Jika perlu mengubah strategi paginasi, kirim parameter paginasi getTargets
- 'pageSize': ukuran halaman
- 'pageNum': nomor halaman
var argv = require('yargs')
.usage('Usage: $0 [targetId] -t [host] -c [keys]')
.demand(0)
.default('t', 'http://localhost:8888').alias('t', 'host')
.default('c', 'keys.json').alias('c', 'keys')
.help('h').alias('h', 'help')
.epilog('copyright 2015, sightp.com')
.argv;
var fs = require('fs');
var host = argv.host;
var keys = JSON.parse(fs.readFileSync(argv.keys));
var farmer = require('../farmer')(host, keys.appKey, keys.appSecret);
farmer.getTargets({
'pageSize': 5,
'pageNum': 1,
})
.then(function(resp) {
console.log(resp.result.targets);
})
.fail(function(err) {
console.log(err);
});
getTargets memanggil antarmuka layanan cloud, contoh kode ada di farmer.js
function getTargetsByPage(pageNum,pageSize) {
return Q.promise(function(resolve, reject) {
request.get(host + '/targets/infos?pageNum=' + pageNum + '&pageSize=' + pageSize)
.query(auth.signParams(keypair, {
"pageNum":pageNum,
"pageSize":pageSize
}))
.end(done(resolve, reject));
});
}
Unduh contoh kode Php
Langkah 1. Buka kode entri demo.php
Langkah 2. Ubah variabel global, ganti parameter autentikasi dalam daftar persiapan Anda
- CRS AppId
- API Key / API Secret
- Server-end URL
<?php
include 'EasyARClientSdkCRS.php';
$apiKey = 'API Key';
$apiSecret = 'API Secret';
$crsAppId = 'CRS AppId'
$crsCloudUrl = 'https://cn1-crs.easyar.com';
$pageNum = 1;
$pageSize = 5;
$sdk = new EasyARClientSdkCRS($apiKey, $apiSecret, $crsAppId, $crsCloudUrl);
$rs = $sdk->targetsV3($pageNum, $pageSize);
if ($rs->statusCode == 0) {
print_r($rs->result);
} else {
print_r($rs);
}
Langkah 3. Jalankan php demo.php
Buat file kode terkait list_targets.py, modifikasi variabel global, lalu jalankan
pip install requests
python list_targets.py
import time
import hashlib
import requests
# --- Global Configuration ---
API_KEY = "YOUR_API_KEY"
API_SECRET = "YOUR_API_SECRET"
APP_ID = "YOUR_APP_ID"
HOST = "https://crs-cn1.easyar.com"
def main():
timestamp = str(int(time.time() * 1000))
params = {
'apiKey': API_KEY,
'appId': APP_ID,
'timestamp': timestamp
}
# Signature: Sort keys -> Concat -> Append Secret -> SHA256
sorted_keys = sorted(params.keys())
sign_str = "".join([f"{k}{params[k]}" for k in sorted_keys]) + API_SECRET
signature = hashlib.sha256(sign_str.encode('utf-8')).hexdigest()
url = f"{HOST}/targets/infos"
params['signature'] = signature
print(f"Requesting GET {url}...")
response = requests.get(url, params=params)
print(f"Response: {response.text}")
if __name__ == "__main__":
main()
Buat file kode terkait main.go, ubah variabel global, lalu jalankan
go run main.go
main.go:
package main
import (
"crypto/sha256"
"fmt"
"io"
"net/http"
"sort"
"strconv"
"time"
)
// --- Global Configuration ---
var (
ApiKey = "YOUR_API_KEY"
ApiSecret = "YOUR_API_SECRET"
AppId = "YOUR_APP_ID"
Host = "https://crs-cn1.easyar.com"
)
func main() {
ts := strconv.FormatInt(time.Now().UnixNano()/1e6, 10)
params := map[string]string{
"apiKey": ApiKey,
"appId": AppId,
"timestamp": ts,
}
keys := make([]string, 0, len(params))
for k := range params { keys = append(keys, k) }
sort.Strings(keys)
builder := ""
for _, k := range keys { builder += k + params[k] }
builder += ApiSecret
signature := fmt.Sprintf("%x", sha256.Sum256([]byte(builder)))
url := fmt.Sprintf("%s/targets/infos?apiKey=%s&appId=%s×tamp=%s&signature=%s",
Host, ApiKey, AppId, ts, signature)
resp, _ := http.Get(url)
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
fmt.Printf("Response: %s\n", string(body))
}
Tambahkan dependensi reqwest, tokio, sha2, hex ke dalam Cargo.toml.
Jalankan cargo run.
use sha2::{Sha256, Digest};
use std::collections::BTreeMap;
use std::time::{SystemTime, UNIX_EPOCH};
// --- Konfigurasi global ---
const API_KEY: &str = "YOUR_API_KEY";
const API_SECRET: &str = "YOUR_API_SECRET";
const APP_ID: &str = "YOUR_APP_ID";
const HOST: &str = "https://crs-cn1.easyar.com";
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
let ts = SystemTime::now().duration_since(UNIX_EPOCH)?.as_millis().to_string();
let mut params = BTreeMap::new();
params.insert("apiKey", API_KEY);
params.insert("appId", APP_ID);
params.insert("timestamp", &ts);
let mut sign_str = String::new();
for (k, v) in ¶ms {
sign_str.push_str(k);
sign_str.push_str(v);
}
sign_str.push_str(API_SECRET);
let mut hasher = Sha256::new();
hasher.update(sign_str.as_bytes());
let signature = hex::encode(hasher.finalize());
let url = format!("{}/targets/infos?apiKey={}&appId={}×tamp={}&signature={}",
HOST, API_KEY, APP_ID, ts, signature);
let res = reqwest::get(url).await?;
println!("Response: {}", res.text().await?);
Ok(())
}
Buat proyek konsol .NET.
dotnet new console
dotnet run
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Net.Http;
class Program {
// --- Konfigurasi Global ---
static string API_KEY = "YOUR_API_KEY";
static string API_SECRET = "YOUR_API_SECRET";
static string APP_ID = "YOUR_APP_ID";
static string HOST = "https://crs-cn1.easyar.com";
static async System.Threading.Tasks.Task Main() {
string timestamp = DateTimeOffset.Now.ToUnixTimeMilliseconds().ToString();
var dict = new SortedDictionary<string, string> {
{ "apiKey", API_KEY },
{ "appId", APP_ID },
{ "timestamp", timestamp }
};
StringBuilder sb = new StringBuilder();
foreach (var kv in dict) sb.Append(kv.Key).Append(kv.Value);
sb.Append(API_SECRET);
string signature = Sha256(sb.ToString());
using var client = new HttpClient();
string query = string.Join("&", dict.Select(x => $"{x.Key}={x.Value}")) + $"&signature={signature}";
string url = $"{HOST}/targets/infos?{query}";
var response = await client.GetAsync(url);
Console.WriteLine($"Result: {await response.Content.ReadAsStringAsync()}");
}
static string Sha256(string str) {
byte[] bytes = SHA256.HashData(Encoding.UTF8.GetBytes(str));
return BitConverter.ToString(bytes).Replace("-", "").ToLower();
}
}
- Lingkungan berjalan
- Unity 2020 LTS atau versi lebih baru
- Scripting Backend: Mono atau IL2CPP keduanya dapat digunakan
- API Compatibility Level: .NET Standard 2.1 (direkomendasikan)
Langkah 1: Mempersiapkan file gambar
- Buat direktori di proyek Unity:
Assets/
└── Scripts/
└── ListImageTarget.cs
- Sesuai dengan nama direktori Assets
- Salin contoh kode ListImageTarget.cs di bawah ini
using System.Collections;
using UnityEngine;
using UnityEngine.Networking;
public class ListImageTarget : MonoBehaviour
{
[Header("Config")]
public string apiBaseUrl = "https://Your-Server-end-URL";
public string authorizationToken = "YOUR API KEY AUTH TOKEN";
public string crsAppId = "CRS-AppId";
public int pageSize = 5;
public int pageNum = 1;
private void Start()
{
StartCoroutine(ListTarget());
}
private IEnumerator ListTarget()
{
string url =
$"{apiBaseUrl}/targets/infos?appId={crsAppId}&pageSize={pageSize}&pageNum={pageNum}";
UnityWebRequest request = UnityWebRequest.Get(url);
request.downloadHandler = new DownloadHandlerBuffer();
request.SetRequestHeader("Content-Type", "application/json");
request.SetRequestHeader("Authorization", authorizationToken);
yield return request.SendWebRequest();
if (request.result == UnityWebRequest.Result.Success)
{
Debug.Log("List target success:");
Debug.Log(request.downloadHandler.text);
}
else
{
Debug.LogError("List target failed:");
Debug.LogError(request.error);
Debug.LogError(request.downloadHandler.text);
}
}
}
- Di Unity Editor:
- Buat GameObject kosong
- Beri nama ListTarget
- Tarik skrip ListImageTarget ke objek tersebut
Langkah 3: Mengkonfigurasi parameter (Inspector)
Modifikasi di panel Inspector:
- Api Url
- Authorization Token
- Crs App Id
- Page size
- Page num
Cukup modifikasi beberapa item ini untuk menjalankan, isi dengan parameter yang sudah dipersiapkan
Langkah 4: Menjalankan
- Klik Play
- Lihat hasil di Console:
- Sukses: Mengembalikan JSON (termasuk targetId)
- Gagal: HTTP / pesan kesalahan
