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Serverless Cloud Function

Release Notes and Announcements

Announcements

Layer Supporting Tag Management and Resource Authorization Upgrade Announcement

SCF Log Service Change Notification

Product Introduction

Related Concepts

Related Products

Purchase Guide

Billing Overview

Billable Items and Billing Modes

Subscription Packages

Pay-As-You-Go (Postpaid)

SCF Pricing

Provisioned Concurrency Price

Billing Example

Payment Overdue

Getting Started

Creating Event Function in Console

Creating Function with Serverless Cloud Framework

User Guide

Quota Management

Exceeded Quota Management

Managing Functions

Function Overview

Create a Function

Testing a Function

Debugging Function

Querying a Function

Query a Function Execution Log

Deleting a Function

Deploying Functions

Web Function Management

Function Overview

Creating and Testing Function

Bootstrap File Description

Trigger Management

HTTP-Triggered Function Billing

Deploying Web Function on Command Line

WebSocket Protocol Support

HTTP-Triggered Function Request Concurrency Management

Log Management

Log Search Guide

Log Delivery Configuration

Log Delivery Configuration (Legacy)

Concurrence Management

Concurrency Overview

Concurrency Management System

Provisioned Concurrency

Scheduled Provisioned Concurrency

Dynamic Provisioned Concurrency Metric

Concurrency Overrun

Trigger Management

Creating a Trigger

Deleting Triggers

Enabling/Disabling Triggers

A Custom Domain Name

Configuring a Custom Domain Name

Version Management

Viewing a Version

Releasing a Version

Using a Version

Alias Management

Traffic Routing Configuration

Using Alias to Implement SCF Grayscale Release

Permission Management

Permission Management Overview

Role and Authorization

Role and Authorization

SCF Policy Syntax

Sub-users and Authorization

Users and Permissions

Creating a Sub-user and Granting It All Permissions of SCF

Creating a Sub-user and Granting It Permissions to Operate Certain Functions

Managing Monitors and Alarms

Descriptions of monitoring metrics

Configuring Alarms

Viewing Execution Logs

Network Configuration

Network Configuration Management

Fixed Public Outbound IP

VPC Communication

Granting a Function in VPC Access to Public Network

Layer Management

Binding function to layer

Execution Configuration

Async Execution

Async Event Management

Extended Storage Management

Mounting CFS File System

DNS Caching Configuration

Resource Managed Mode Management

Triggers

Trigger Overview

Trigger Event Message Structure Summary

API Gateway Trigger

Websocket

COS Trigger

COS Trigger Description

CLS Trigger

CLS Trigger Description

Timer Trigger

Timer Trigger Description

CKafka Trigger

CKafka Trigger Description

Apache Kafka Trigger

Apache Kafka Trigger Description

Trigger Configuration Description

CLB Trigger Description

TencentCloud API Trigger

Development Guide

Testing a Function

Environment Variables

Dependency Installation

Using Container Image

Error Types and Retry Policies

Dead Letter Queue

Connecting SCF to Database

Automated Deployment

Cloud Function Status Code

Common Errors and Solutions

Developer Tools

Serverless Web IDE

Serverless Cloud Framework

Permission Management

Function Operations

Development Debugging

Project Application

List of Supported Commands

Account and Permission Configuration

Creating and Deploying Function

Calling SDK Across Functions

Third-Party Tools

Malagu Framework

Accessing Database

Getting Started

Code Development

Web Framework Development

Deploying Framework on Command Line

Quickly Deploying Egg Framework

Quickly Deploying Express Framework

Quickly Deploying Flask Framework

Quickly Deploying Koa Framework

Quickly Deploying Laravel Framework

Quickly Deploying Nest.js Framework

Quickly Deploying Next.js Framework

Quickly Deploying Nuxt.js Framework

Quickly Deploying Django Framework

Practical Tutorial

Solutions with Tencent Cloud Services

Business Development

Function Concurrency Management Practice

Concurrent High-Performance Architecture

Using Custom Font in SCF

Implementing Todo Application with Spring Boot and SCF

ServerlessFramework Practices

Framework Migration

API Gateway

Using API Gateway to Provide API Service

Step 1. Create blogArticle Function

Step 2. Create and Test API Service

Step 3. Publish API Service and Verify Online

Serverless Multi-File Upload Processing

Implementing Custom Invitation with SCF + API Gateway

TRTC Practices

Using SCF to Input Online Media Streams for SCF +TRTC

SCF + TRTC for Stream Single Recording

SCF + TRTC for Stream Mix Recording

COS Practices

Audio/Video Transcoding

Acquire Image on COS and Create a Thumbnail

Example illustration

Step 1. Prepare COS Bucket

Step 2. Create and Test Thumbnail Function

Forming Data Lake with SCF + COS

Implementing Custom Calculation of File Hash Value with SCF + COS

Implementing Custom Transcoding with SCF + COS

MapReduce Method that Uses WordCount as an Example

Step 1: Prepare a COS Bucket

Step 2. Create Mapper and Reducer Functions

Step 3. Test Function

CKafka Practice

Dumping CKafka Data to ES

SCF + CKafka for Message Dump to TencentDB for MySQL

SCF + CKafka for Message Dump to CKafka

CLS

CLS Function Processing Overview

SCF +CLS Dump to CKafka

SCF +CLS Dump to COS

Dumping Logs to ES with SCF + CLS

CLB Practice

Using SCF and CLB to Quickly Deploy Web Service

MPS

MPS Function Processing Overview

Video Task Callback Backup to COS

Video Task Callback Notification Tool

CDN

SCF + CDN for Scheduled Prefetch/Purge

CDWPG

SCF + CDWPG for CKafka Data Import

VOD

SCF + VOD for Event Notification Receipt

SMS

SCF + SMS for SMS Verification Code

ES

SCF + ES for Quick Search Service

Scheduled Task

Scheduled Task Overview

Performing Scheduled Task

Video Processing

Implementing Batch Automated Video Editing with SCF and FFmpeg

Success Stories

Tencent Online Education

Online Video Industry

Audio/Video Transcoding Best Practices

Tencent Online Education

Best Practice of Tencent IEG Going Global

API Documentation

Making API Requests

Request Structure

Trigger APIs

UpdateTriggerStatus

Function APIs

Namespace APIs

UpdateNamespace

DeleteNamespace

CreateNamespace

Layer Management APIs

PublishLayerVersion

ListLayerVersions

GetLayerVersion

DeleteLayerVersion

Async Event Management APIs

TerminateAsyncEvent

ListAsyncEvents

GetAsyncEventStatus

Other APIs

Function and Layer Status Description

SDK Documentation

FAQs

SCF utility class

Event Handling FAQs

API Gateway Trigger FAQs

Related Agreement

Service Level Agreement

DocumentationServerless Cloud FunctionFAQsEvent Handling FAQs

Event Handling FAQs

Last updated: 2024-12-02 16:29:12

Event Handling FAQs

Last updated: 2024-12-02 16:29:12

What is an event source?
An event source is an application created by a Tencent Cloud service or developer to generate events that trigger an SCF function.
What event sources are supported?
Currently, triggering by manual triggers (APIs), timer triggers, COS, CMQ topics, API Gateway, and CKafka is supported, and more trigger types will be available in the future.
How is the delay when a function responds to an event?
SCF can achieve request response in a matter of milliseconds for regular requests. However, the delay will become higher when the function is created, updated, or idle for a long time.

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