initial push

backend/services/fetch-labelstudio.js

@@ -0,0 +1,92 @@
+const API_URL = 'http://192.168.1.19:8080/api';
+const API_TOKEN = 'c1cef980b7c73004f4ee880a42839313b863869f';
+
+
+
+
+
+
+const fetch = require('node-fetch');
+
+async function fetchLableStudioProject(projectid) {
+    // 1. Trigger export
+    const exportUrl = `${API_URL}/projects/${projectid}/export?exportType=JSON_MIN`;
+    const headers = { Authorization: `Token ${API_TOKEN}` };
+    let res = await fetch(exportUrl, { headers });
+    if (!res.ok) {
+        let errorText = await res.text().catch(() => '');
+        console.error(`Failed to trigger export: ${res.status} ${res.statusText} - ${errorText}`);
+        throw new Error(`Failed to trigger export: ${res.status} ${res.statusText}`);
+    }
+    let data = await res.json();
+    // If data is an array, it's ready
+    if (Array.isArray(data)) return data;
+    // If not, poll for the export file
+    let fileUrl = data.download_url || data.url || null;
+    let tries = 0;
+    while (!fileUrl && tries < 20) {
+        await new Promise(r => setTimeout(r, 2000));
+        res = await fetch(exportUrl, { headers });
+        if (!res.ok) {
+            let errorText = await res.text().catch(() => '');
+            console.error(`Failed to poll export: ${res.status} ${res.statusText} - ${errorText}`);
+            throw new Error(`Failed to poll export: ${res.status} ${res.statusText}`);
+        }
+        data = await res.json();
+        fileUrl = data.download_url || data.url || null;
+        tries++;
+    }
+    if (!fileUrl) throw new Error('Label Studio export did not become ready');
+    // 2. Download the export file
+    res = await fetch(fileUrl.startsWith('http') ? fileUrl : `${API_URL.replace('/api','')}${fileUrl}`, { headers });
+    if (!res.ok) {
+        let errorText = await res.text().catch(() => '');
+        console.error(`Failed to download export: ${res.status} ${res.statusText} - ${errorText}`);
+        throw new Error(`Failed to download export: ${res.status} ${res.statusText}`);
+    }
+    return await res.json();
+}
+
+
+
+async function fetchProjectIdsAndTitles() {
+  try {
+    const response = await fetch(`${API_URL}/projects/`, {
+      headers: {
+        'Authorization': `Token ${API_TOKEN}`,
+        'Content-Type': 'application/json'
+      }
+    });
+
+    if (!response.ok) {
+      let errorText = await response.text().catch(() => '');
+      console.error(`Failed to fetch projects: ${response.status} ${response.statusText} - ${errorText}`);
+      throw new Error(`HTTP error! status: ${response.status}`);
+    }
+
+    const data = await response.json();
+
+    if (!data.results || !Array.isArray(data.results)) {
+      throw new Error('API response does not contain results array');
+    }
+
+    // Extract id and title from each project
+    const projects = data.results.map(project => ({
+      id: project.id,
+      title: project.title
+    }));
+    console.log(projects)
+    return projects;
+
+  } catch (error) {
+    console.error('Failed to fetch projects:', error);
+    return [];
+  }
+}
+
+module.exports = { fetchLableStudioProject, fetchProjectIdsAndTitles };
+
+
+
+//getLableStudioProject(20)
+//fetchProjectIdsAndTitles()