Question

无法保存大于管道块大小（〜64K）的文件。

使用mongodb 3.4.0，相关节点依赖性

重新验证4.2.0
mongodb ^ 2.2.12

lodash 4.16.6

bookeeppingData = {request, id, ...meta}
clone = lodash.cloneDeep(bookkeepingData)

const {
    request: req,
    id: _id,
    meta: metadata,
} = clone

const bucket = new mongodb.GridFSBucket(                                                                                                                                                      
    db,                                                                                                                                                                               
    {bucketName: 'my_gridfs_collection'}                                                                                                                                                          
);                                                                                                                                                                                    

const uploadSteam = bucket.openUploadStreamWithId(                                                                                                                                    
    _id,                                                                                                                                                                              
    undefined,                                                                                                                                                                        
    {metadata}                                                                                                                                                                        
);                                                                                                                                                                                    

req.on('data', (chunk) => {                                                                                                                                                        
    console.log(`Received ${chunk.length} bytes of data.`);                                                                                                                         
});                                                                                                                                                                                   

req.on('end', () => {                                                                                                                                                              
    console.log('There will be no more data.');                                                                                                                                       
});                                                                                                                                                                                   

req.on('error', (e) => {                                                                                                                                                           
    console.log('req on error', e);                                                                                                                                                   
});                                                                                                                                                  

uploadSteam.on('finish', function() {                                                                                                                                                 
    console.log('finsish');
    keepThebooks(bookkeepingData);                                                                                                                                                                                                                                                                                                                      
});   

uploadSteam.on('error', (e) => {                                                                                                                                                      
    console.log('uploadstream on error', e);                                                                                                                                          
});                                                                                                                                                                                   

req.pipe(uploadSteam);

}

发送小于64K的文件时，控制台输出为

Received 57259 bytes of data.
There will be no more data.
finish

这是相应的curl --verbose输出（减去json响应）：

*   Trying ::1...                                                                                                                                                                             
* TCP_NODELAY set                                                                                                                                                                             
* Connected to localhost (::1) port 8060 (#0)                                                                                                                                                 
* Server auth using Basic with user 'driver'                                                                                                                                                  
> POST /artifact?branch=xyz&role=PHOTO&where.lat=55&where.long=77.2&where.acc=12&sys=system&id=1234&sys=system2&id=1234b&created=2018-11-01T18:41:50.850Z&tz=-600 HTTP/1.1                    
> Host: localhost:8060                                                                                                                                                                        
> Authorization: Basic xxxxxxxxx                                                                                                                                                   
> User-Agent: curl/7.61.1                                                                                                                                                                     
> Accept: */*
> Content-Type: image/png
> Content-Length: 57259
> Expect: 100-continue
>
< HTTP/1.1 100 Continue
* We are completely uploaded and fine
< HTTP/1.1 200 OK
< Cache-Control: no-cache, no-store, must-revalidate
< Content-Type: application/json
< Content-Length: 388
< Date: Wed, 23 Jan 2019 20:58:16 GMT
< Connection: keep-alive
<
* Connection #0 to host localhost left intact

发送大于64K的文件时，控制台输出为：

Received 65536 bytes of data.

（就是这样-没有错误）

相应的curl --verbose输出为：

*   Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 8060 (#0)
* Server auth using Basic with user 'driver'
> POST /artifact?branch=xyz&role=PHOTO&where.lat=55&where.long=77.2&where.acc=12&sys=system&id=1234&sys=system2&id=1234b&created=2018-11-01T18:41:50.850Z&tz=-600 HTTP/1.1
> Host: localhost:8060
> Authorization: Basic xxxxxxxxx
> User-Agent: curl/7.61.1
> Accept: */*
> Content-Type: image/png
> Content-Length: 84801
> Expect: 100-continue
> 
< HTTP/1.1 100 Continue
* We are completely uploaded and fine
* Empty reply from server
* Connection #0 to host localhost left intact
curl: (52) Empty reply from server

我希望它能正常工作，并且控制台应该是这样的：

Received 65536 bytes of data.
Received 19274 bytes of data.
There will be no more data.
finish

Answer 1

我在同一个团队中。原来，我们正在深克隆包含流的对象。当我们停止克隆整个文件时，上传正常。

如何使用Restify服务器将请求正文存储在GridFS中？

1 个答案: