Web function is a new function capability in SCF. Compared with event function that has limits on the event format, web function focuses on optimization of web service scenarios and can directly send HTTP requests to URLs to trigger function execution. For more information, please see Function Overview.
The Serverless Framework SCF component now supports deploying web functions; therefore, you can use it to quickly create and deploy web functions.
Run the following command to initialize the serverless web function template.
sls init http-demo
Enter the demo project and view the directory structure as shown below:
. http-demo ├── serverless.yml # Configuration file ├── package.json # Dependency file ├── scf_bootstrap # Project bootstrap file └── index.js # Service function
scf_bootstrap is the project bootstrap file. For the specific writing rules, please see Bootstrap File Description.
serverless.yml to view the configuration information.
You only need to add the
type parameter in
yml to specify the function type and deploy the web function.
Below is a sampleNote
- For web functions, there is no need to specify the entry function.
- If the
typeparameter is not entered, the function will be an event function by default.
- If there is no
scf_bootstrapbootstrap file in the local code, you can specify the
ymlto specify the entry function, and the component will generate a default
scf_bootstrapfile for you to complete the deployment based on the runtime language. After the deployment is completed, you need to modify the content of the
scf_bootstrapfile in the SCF console according to the actual needs of your project.
# Specify web type as the function type
# For Node.js, you can enable automatic dependency installation
- path: /
In the root directory, run
sls deploy to complete the service deployment. Below is a sample:
sls deploy serverless ⚡components Action: "deploy" - Stage: "dev" - App: "http" - Name: "http" type: web functionName: web-function description: This is a function in http application namespace: default runtime: Nodejs12.16 handler: memorySize: 128 lastVersion: $LATEST traffic: 1 triggers: - NeedCreate: true created: true serviceId: service-xxxxxx serviceName: serverless subDomain: service-xxxxxx.cd.apigw.tencentcs.com protocols: http&https environment: release apiList: - path: / method: ANY apiName: index created: true authType: NONE businessType: NORMAL isBase64Encoded: false apiId: api-xxxxxx internalDomain: url: https://service-xxxx.cd.apigw.tencentcs.com/release/ 18s › http › executed successfully
Similar to event function, you can directly run the
sls log command to view the latest 10 logs of the deployed function. Below is a sample:
$ sls log serverless ⚡components Action: "log" - Stage: "dev" - App: "http" - Name: "http" - requestId: xxxxx retryNum: 0 startTime: 1624262955432 memoryUsage: 0.00 duration: 0 message: """ """ - requestId: xxxxx retryNum: 0 startTime: 1624262955432 memoryUsage: 0.00 duration: 0 message: """ """
Run the following command to remove your deployed cloud resources.
Serverless Framework CLI provides an HTTP component specifically for web framework deployment, which can quickly implement features such as web framework deployment, layer creation, static/dynamic resource separation, and CDN acceleration. For usage, please see Deploying Framework on Command Line.