云开发怎么通过云函数写数据到云存储

微信公开课小程序热门讨论关于「云开发怎么通过云函数写数据到云存储」的小程序开发问题
补充:云开发怎么通过云函数写数据到云存储
展开:当前Bug的表现返回结果：{errorCode:1,errorMessage:usercodeexceptioncaught,stackTrace:Error:errCode:501001resourcesystemerror|errMsg:uploadFile:failMultipartParserend():streamendedunexpectedly:state=PART_DATA;atuploadFileapi; atnewCloudSDKError(varusernode_moduleswxserversdkindexjs:2679:28) atreturnAsCloudSDKError(varusernode_moduleswxserversdkindexjs:2731:16) atObjectreturnAsFinalCloudSDKError(varusernode_moduleswxserversdkindexjs:2745:13) atObjectu003canonymousu003e(varusernode_moduleswxserversdkindexjs:2213:58) atstep(varusernode_modulestslibtslibjs:133:27) atObjectthrow(varusernode_modulestslibtslibjs:114:57) atrejected(varusernode_modulestslibtslibjs:105:69) atu003canonymousu003e atprocess_tickCallback(internalprocessnext_tickjs:188:7)}预期表现传入了要求的参数【可读流】，调用应该成功复现路径提供一个最简复现Demo提供三种云函数调用case，均无法实现写数据到存储，本地测试创建的可读流没有问题constcloud=require(wxserversdk)constfs=require(fs)conststreamifier=require(streamifier)varstreamBuffers=require(streambuffers);cloudinit()exportsmain=async(event,context)={*case0varreaderStream=newstreamPassThrough();readerStreamend(newBuffer(Testdata));**case1letreaderStream=streamifiercreateReadStream(newBuffer(Testdata))**case2varreaderStream=newstreamBuffersReadableStreamBuffer({ frequency:10,  inmilliseconds chunkSize:2048  inbytes}); readerStreamput(Testdata);readerStreamstop();*returnawaitclouduploadFile({cloudPath:demotxt,fileContent:readerStream})}即速小程序：云函数的空间只能读不能写就算能写也没意义，因为运行完就销毁文件读写请用云存储：或者说【小程序云开发】只能做文件的【搬运工】，不能做文件的生【产者吗】：官方说的数据类型是fsReadStream用fscreateReadStream来获取流数据letreadStream=fscreateReadStream(你的文件路径);
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