Before You Start

Huawei Cloud Live helps you smoothly deliver livestreaming content to global audience with low latency.

This document describes how to use application programming interfaces (APIs) to perform operations on Live resources, such as transcoding, managing, and recording live video streams. For details about all supported operations, see API Overview.

If you plan to access Live through an API, ensure that you are familiar with Live concepts. For details, see Service Overview.

You can configure referer validation and access control lists (ACLs) on the Live console to determine who can and cannot access your content. Only users who meet the configured rules can play videos. For details, see Access Control.

Live supports Representational State Transfer (REST) APIs, allowing you to call APIs using HTTPS. For details about API calling, see Calling APIs.

Endpoints

An endpoint is the request address for calling an API. Endpoints vary depending on regions. For the endpoints of Live, see Table 1. You can also query the endpoints of services in Regions and Endpoints.

**Table 1** Live endpoints
Region Name	Region	Endpoint
CN North-Beijing4	cn-north-4	live.cn-north-4.myhuaweicloud.com
AP-Singapore	ap-southeast-3	live.ap-southeast-3.myhuaweicloud.com
AP-Bangkok	ap-southeast-2	live.ap-southeast-2.myhuaweicloud.com

Constraints

The Live service sets a limit on the number of API calls to prevent service interruption caused by repeated API calls in a short period of time.

**Table 2** API request throttling
API Category	API Name	Max. User Requests	Max. API Requests
Domain name management	Creating a domain name Querying domain names	300 times/minute	3000 times/minute
	Deleting a domain name Modifying a domain name Mapping domain names Deleting a domain name mapping Configuring the domain name IPv6 switch Modifying the HLS configuration of a domain name Querying HLS configurations of domain names	100 times/minute	1000 times/minute
	Querying IP address information	5 times/second	5 times/second
	Modifying the streaming domain name delay Modifying origin pull settings	30 times/minute	100 times/minute
	Querying the streaming domain name delay Querying origin pull settings	30 times/minute	300 times/minute
Transcoding template management	Creating a transcoding template Deleting a transcoding template Modifying a transcoding template Querying transcoding templates	100 times/minute	1000 times/minute
Stream management	Disabling a push stream Modifying the attribute of a disabled stream	4000 times/minute	12,000 times/minute
	Querying disabled streams Resuming a push stream	3000 times/minute	6000 times/minute
	Querying ongoing streams	1000 times/minute	2000 times/minute
Notification management	Adding and modifying stream notification configurations Querying stream notification configurations Deleting stream notification configurations	300 times/minute	3000 times/minute
Authentication	Configuring a referer validation ACL Deleting a referer validation ACL Querying referer validation ACLs Querying IP ACLs Modifying an IP ACL Generating a signed URL	300 times/minute	3000 times/minute
	Querying supported areas of a streaming domain name	30 times/minute	300 times/minute
	Modifying supported areas of a streaming domain name	30 times/minute	100 times/minute
	Querying the URL validation configuration of a specified domain name Modifying the URL validation configuration of a specified domain name Deleting the URL validation configuration of a specified domain name	150 times/minute	300 times/minute
Snapshot management	Creating a snapshot capturing template Modifying a snapshot capturing template Querying snapshot capturing templates Deleting a snapshot capturing template	150 times/minute	300 times/minute
Log management	Obtaining livestreaming logs	300 times/minute	3000 times/minute
Recording management	Creating a recording template Querying recording templates Modifying a recording template Deleting a recording template Querying recording template configurations Submitting a recording command	300 times/minute	3000 times/minute
Recording management	Creating a video recording index	1200 times/minute	3000 times/minute
Recording callback management	Creating a recording callback Querying recording callbacks Modifying a recording callback Querying recording callbacks Deleting a recording callback	300 times/minute	300 times/minute
HTTPS certificate management	Modifying the HTTPS certificate configuration of a specified domain name Querying the HTTPS certificate configuration of a specified domain name Deleting the HTTPS certificate configuration of a specified domain name	150 times/minute	300 times/minute
OBS bucket management	Granting or canceling authorization of accessing OBS buckets	150 times/minute	300 times/minute
Statistical analysis	Querying the duration of transcoded outputs Querying the number of recording channels Querying the number of snapshots Querying playback profiles	60 times/minute	5000 times/minute
	Querying the peak bandwidth Querying the total playback traffic Querying HTTP status codes Querying upstream bandwidth Querying the number of stream push channels Querying historical streams	20 times/minute	5000 times/minute
	Querying the distribution of livestreaming metrics by region	50 times/second	150 times/second
Statistical analysis	Querying stream data of a streaming domain name	20 times/second	50 times/second
Stream analytics	Querying the stream frame rate Querying the stream bitrate	20 times/minute	5000 times/minute
	Querying stream analytics	Once per second	5 times/second
	Querying CDN upstream streaming quality data	60 times/second	300 times/second

Concepts

Account
A domain is created upon successful registration. The domain has full access permissions for all of its cloud services and resources. It can be used to reset user passwords and grant user permissions. The account is a payment entity and should not be used to perform routine management. For security purposes, create IAM users and grant them permissions for routine management.
IAM user
An IAM user is created using an account to use cloud services. Each IAM user has its own identity credentials (password and access keys).

An IAM user can view the account ID and user ID on the My Credentials page of the console. The domain name, username, and password will be required for API authentication.
Region
A region is a physical location where cloud resources are deployed. Availability zones (AZs) in the same region can communicate with each other over an intranet but AZs in different regions cannot communicate with each other. For low network latency and quick resource access, select the nearest region. The choice of regions may also be subject to legal compliance requirements.
AZ
An AZ is one or more physical data centers within a region. It has independent cooling, fire extinguishing, moisture-proof, and electricity facilities. Within an AZ, compute, networking, storage, and other resources are logically divided into multiple clusters. AZs within a region are connected using high-speed optical fibers for high availability.
Project
Projects group and isolate resources (including compute, storage, and network resources) across physical regions. A default project is provided for each region, and subprojects can be created under each default project. Users can be granted permissions to access all resources in a specific project. For more refined access control, create subprojects under a project and purchase resources in the subprojects. Users can then be assigned permissions to access only specific resources in the subprojects.

Figure 1 Project isolating model