WeChat applet network API upload and download details

This article describes how to upload and download detailed information about mini-program network APIs, for more information about uploading and downloading small program network APIs, see this article.

Wx. uploadFile (OBJECT)

Upload local resources to the developer server. For example, after obtaining a temporary file path for a local resource through the wx. chooseImage interface, you can use this interface to upload the local resource to the specified server. The client initiates an https post request, where Content-Type is multipart/form-data.

OBJECT parameter description:

Parameters	Type	Required	Description
Url	String	Yes	Developer server url
FilePath	String	Yes	Path of the file resource to be uploaded
Name	String	Yes	The key corresponding to the file. the developer can use this key on the server to obtain the binary content of the file.
Header	Object	No	HTTP request Header
FormData	Object	No	Additional form data in the HTTP request
Success	Function	No	Callback function for successful API call
Fail	Function	No	Callback function for interface call failure
Complete	Function	No	The callback function after the interface call ends. (the callback function is executed if the call succeeds or fails)

Sample code:

wx.chooseImage({ success:function(res){ var tempFilePaths = res.tempFilePaths;  wx.uploadFile({  url: 'http://example.com/upload',  filePath: tempFilePaths[0],  name:"file",  formData:{  "user":"test"  } }) }})

Wx. downloadFile (OBJECT)

Download file resources to your local device. The client directly initiates an http get request to process the downloaded resource according to the type and return the local temporary path of the file.

OBJECT parameter description:

Parameters	Type	Required	Required
Url	String	Yes	Download resource url
Type	String	No	Download resource type, used for client identification and processing. valid value: image/audio/video
Header	Object	No	HTTP request Header
Success	Function	No	After the download is successful, it is sent to the page in the form of tempFilePath, res = {tempFilePath: "Temporary file path "}
Fail	Function	No	Callback function for interface call failure
Complete	Function	No	The callback function after the interface call ends. (the callback function is executed if the call succeeds or fails)

Sample code:

wx.downloadFile({ url: 'http://example.com/audio/123', type: 'audio', success:function(res){ wx.playVoice({  filePath: res.tempFilePath }) }})

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The above is the detailed description for uploading and downloading mini-program network APIs. For more information, see other related articles in the first PHP community!