info-Enterprise Mobile Application Studio(EMAS)-阿里云帮助中心

This topic describes how to use the info interface to query files.

Note

The SDK version must be 3.1.3 or later.

Method definition

mpserverless.file.info(fileId: String | String[]): Promise<Result[]>

Request parameters

Interface parameters:

Field name	Type	Required	Description
`fileId`	String or String[]	Yes	The file ID. You can pass an array to query multiple files. Note For compatibility with SDK versions earlier than 3.1.3, you can also pass a file URL to query file information. If you pass an array, file IDs that do not exist are automatically ignored. You can query a maximum of 50 files at a time.

Return parameters

The returned parameter is an array:

Field	Type	Description
`fileId`	String	The file ID.
`gmtCreate`	Int	The time the file was uploaded, in seconds.
`gmtModified`	Int	The time the file was last modified, in seconds.
`name`	String	The original name of the file.
`size`	Int	The file size, in bytes.
`type`	String	The file type.
`url`	String	The CDN-accelerated URL for accessing and downloading the file.

Examples

Sample query file:

const image = await mpserverless.file.info("5d916ee7-869f-4b90-8224-2ad15e25****");
console.log(image);

Sample output:

[
    {
        "fileId": "5d916ee7-869f-4b90-8224-2ad15e25****",
        "gmtCreate": 1665220833,
        "gmtModified": 1665220833,
        "name": "hello.png",
        "size": 29661,
        "type": "png",
        "url": "https://mp-c68e6766-2bda-4263-****-29696919923f.cdn.bspapp.com/cloudstorage/4abe575f-19c8-4b9b-b1cc-4fa385d7****.png"
    }
]