harmony 鸿蒙Sample Server Development Overview
Sample Server Development Overview
The sample server provides a simple server instance for deploying update packages. It can be used as an auxiliary test environment for the UpdateService subsystem.
When to Use
In actual applications, developers need to query and download update packages from the server. The sample server provides the following functions:
Update package query: The server returns the version information of the update package.
Update package download: The server returns the download link of the update package.
The sample server supports update service testing and secondary development function verification, building an end-to-end environment to cater for diverse update service use cases.
Basic Concepts
Package search service: one of the service capabilities provided by the UpdateService. It depends on the server that supports the TCP and SSL protocols.
Package search server: a server that provisions the package search service through the TCP connection and the SSL protocol. The sample server mentioned in this document is such a package search server.
Download server: an HTTP server.
update.serverip.search: a system parameter that indicates the IP address of the package search server configured on the UpdateService. The default value is 127.0.0.1.
Constraints
- The following is an example of the json response returned by the server. Note that the verifyInfo field indicates the SHA-256 value of the update package, and the size field indicates the size of the update package, in bytes.
{
"searchStatus": 0,
"errMsg": "success",
"checkResults": [{
"versionName": "versionNameSample",
"versionCode": "versionCodeSample",
"verifyInfo": "verifyInfoSHA256Value1234567",
"size": 1234567,
"packageType": 1,
"url": "http://serverAddressSample/packageNameSample.fileTypeSample",
"descriptPackageId": "abcdefg1234567ABCDEFG"
}],
"descriptInfo": [{
"descriptionType": 0,
"content": "This package is used for update."
}]
}
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