server-ts: Convert routes/api/export

src/routes/api/export.ts

@@ -0,0 +1,60 @@
+"use strict";
+
+import zipExportService = require('../../services/export/zip');
+import singleExportService = require('../../services/export/single');
+import opmlExportService = require('../../services/export/opml');
+import becca = require('../../becca/becca');
+import TaskContext = require('../../services/task_context');
+import log = require('../../services/log');
+import NotFoundError = require('../../errors/not_found_error');
+import { Request, Response } from 'express';
+import ValidationError = require('../../errors/validation_error');
+
+function exportBranch(req: Request, res: Response) {
+    const {branchId, type, format, version, taskId} = req.params;
+    const branch = becca.getBranch(branchId);
+
+    if (!branch) {
+        const message = `Cannot export branch '${branchId}' since it does not exist.`;
+        log.error(message);
+
+        res.setHeader("Content-Type", "text/plain")
+            .status(500)
+            .send(message);
+        return;
+    }
+
+    const taskContext = new TaskContext(taskId, 'export');
+
+    try {
+        if (type === 'subtree' && (format === 'html' || format === 'markdown')) {
+            zipExportService.exportToZip(taskContext, branch, format, res);
+        }
+        else if (type === 'single') {
+            if (format !== "html" && format !== "markdown") {
+                throw new ValidationError("Invalid export type.");
+            }
+            singleExportService.exportSingleNote(taskContext, branch, format, res);
+        }
+        else if (format === 'opml') {
+            opmlExportService.exportToOpml(taskContext, branch, version, res);
+        }
+        else {
+            throw new NotFoundError(`Unrecognized export format '${format}'`);
+        }
+    }
+    catch (e: any) {
+        const message = `Export failed with following error: '${e.message}'. More details might be in the logs.`;
+        taskContext.reportError(message);
+
+        log.error(message + e.stack);
+
+        res.setHeader("Content-Type", "text/plain")
+            .status(500)
+            .send(message);
+    }
+}
+
+module.exports = {
+    exportBranch
+};