上传fileFrom ngCordova MediaFile

Question

我正在尝试从ngCordova的$cordovaCapture服务上传一个声音文件到UploadCare。uploadcare.fileFrom('object')由于“上传”错误而不断失败。我有公钥。我能够上传文件通过发送和标签访问document.getElementById('fileTag').files。

$cordovaCapture.captureAudio()
                    .then(function (audioData) {

                        return uploadcare.fileFrom('object', audioData[0])
                            .done(function (fileInfo) {
                                console.log(fileInfo);

                            }).fail(function (err) {
                                console.log(err);

                            })
                    })

audioData对象如下所示

MediaFile {
    end:0
    fullPath:"file:/storage/emulated/0/Sounds/Voice%20002.m4a"
    lastModified:null
    lastModifiedDate:1481324751000
    localURL:"cdvfile://localhost/sdcard/Sounds/Voice%20002.m4a"
    name:"Voice 002.m4a"
    size:49227
    start:0
    type:"audio/mpeg"
} __proto__:File

我想问题可能是对象是一个MediaFile而不是一个文件，但是我需要一些帮助将其中一个转换到另一个。

FileEntry
    filesystem:FileSystem
    fullPath:"/Sounds/Voice 002.m4a"
    isDirectory:false
    isFile:true
    name:"Voice 002.m4a"
    nativeURL:"file:///storage/emulated/0/Sounds/Voice%20002.m4a"
    __proto__:Entry


File
    end:49227
    lastModified:1481324751000
    lastModifiedDate:1481324751000
    localURL:"cdvfile://localhost/sdcard/Sounds/Voice%20002.m4a"
    name:"Voice 002.m4a"
    size:49227
    start:0
    type:"audio/mpeg"
    __proto__:Object

使用window.resolveLocalFileSystemUrl()，您将得到上面的FileEntry对象，该对象提供了上面的文件对象，但是上传仍然失败，出现了“上传”错误。

Answer 1

使用ngCordova $cordovaFileTransfer()，您可以将音频文件发送到上载。

        var fileName = filePath.split('/').pop();
        var uploadcareOptions = {
            fileKey: "file",
            fileName: fileName,
            chunkedMode: false,
            mimeType: 'audio/mp4',
            params: {
                "UPLOADCARE_PUB_KEY": "upload-care-public-key",
                "UPLOADCARE_STORE": 'auto',
                fileName: fileName
            }
        };
return $cordovaFileTransfer.upload('https://upload.uploadcare.com/base/', filePath, uploadcareOptions)

重要的部分是在发送文件时指定mime类型，否则将假设它是图像。

Answer 2

uploadcare.fileFrom从本机文件对象上传文件。试试这个：

window.resolveLocalFileSystemURL(audioData[0].localURL,function(fileEntry){
fileEntry.file(function(file) {
    uploadcare.fileFrom('object', file);
    ...
    });
});