gltf-pipeline-api.ts•3.21 kB
import { Router } from 'express';
import multer from 'multer';
import { GltfProcessOptions } from '../core/gltf-processor';
import { GltfPipelineExecutor } from '../core/gltf-pipeline-executor';
import logger from '../utils/logger';
import * as fs from 'fs';
import * as path from 'path';
import { desiredExtFrom } from '../utils/gltf-constants';
const router = Router();
const upload = multer();
/**
* POST /api/gltf-pipeline/process
* 接收 multipart/form-data（包含文件与字段），组装 GltfProcessOptions 并调用执行器
*/
router.post('/process', upload.single('file'), async (req, res) => {
try {
// 1) 校验文件
const r: any = req;
if (!r.file || !r.file.path) {
return res.status(400).json({ success: false, error: 'No file uploaded' });
}
// 2) 解析字段并规范化为 GltfProcessOptions
const body = req.body || {};
// 将字符串布尔转布尔
const toBool = (v: any) => (typeof v === 'string' ? v === 'true' : !!v);
const outputFormat = (body.outputFormat as 'glb' | 'gltf' | undefined) ?? 'glb';
const options: GltfProcessOptions = {
inputPath: r.file.path,
outputPath: undefined,
outputFormat,
// 如果 outputFormat=glb 则等同于 binary
binary: outputFormat === 'glb' ? true : toBool(body.binary),
json: outputFormat === 'gltf' ? true : toBool(body.json),
separateTextures: toBool(body.separateTextures),
draco: body.draco !== undefined ? toBool(body.draco) : (outputFormat === 'glb'),
stats: toBool(body.stats),
allowAbsolute: toBool(body.allowAbsolute),
keepLegacyExtensions: toBool(body.keepLegacyExtensions),
keepUnusedElements: toBool(body.keepUnusedElements),
dracoOptions: body.dracoOptions
? typeof body.dracoOptions === 'string'
? JSON.parse(body.dracoOptions)
: body.dracoOptions
: undefined,
textureCompress: toBool(body.textureCompress),
textureFormat: body.textureFormat
};
// 3) 生成 outputPath
const desiredExt = desiredExtFrom({ outputFormat: options.outputFormat, binary: options.binary === true });
const base = path.basename(r.file.originalname, path.extname(r.file.originalname));
const dir = path.dirname(r.file.path);
options.outputPath = path.join(dir, `${base}_processed${desiredExt}`);
// normalize extension to ensure it matches desiredExt exactly
if (!options.outputPath.endsWith(desiredExt)) {
options.outputPath = options.outputPath.replace(/\.(glb|gltf)$/i, '') + desiredExt;
}
// 4) 执行
const executor = new GltfPipelineExecutor();
const command = await executor.execute(options);
return res.status(200).json({
success: true,
data: {
inputPath: options.inputPath,
outputPath: options.outputPath,
command
}
});
} catch (error) {
logger.error('API processing error:', error);
return res.status(500).json({
success: false,
error: error instanceof Error ? error.message : String(error)
});
}
});
// 同时导出命名路由，便于测试用 require 解构
export const gltfPipelineRouter = router;
export default router;