Edge Developer Platform
  • Edge Functions
    • Overview
    • Getting Started
    • Operation Guide
      • Function Management
      • Function Trigger
    • Runtime APIs
      • addEventListener
      • Cache
      • Cookies
      • Encoding
      • Fetch
      • FetchEvent
      • Headers
      • Request
      • Response
      • Streams
        • ReadableStream
        • ReadableStreamBYOBReader
        • ReadableStreamDefaultReader
        • TransformStream
        • WritableStream
        • WritableStreamDefaultWriter
      • Web Crypto
      • Web standards
      • Images
        • ImageProperties
    • Sample Functions
      • Returning an HTML Page
      • Returning a JSON Object
      • Fetch Remote Resources
      • Authenticating a Request Header
      • Modifying a Response Header
      • Performing an A/B Test
      • Setting Cookies
      • Performing Redirect Based on the Request Location
      • Using the Cache API
      • Caching POST Requests
      • Responding in Streaming Mode
      • Merging Resources and Responding in Streaming Mode
      • Protecting Data from Tampering
      • Rewriting a m3u8 File and Configuring Authentication
      • Adaptive Image Resize
      • Image Adaptive WebP
      • Customize Referer restriction rules
      • Remote Authentication
      • HMAC Digital Signature
      • Naming a Downloaded File
      • Obtaining Client IP Address
    • Best Practices
      • Adaptive Image Format Conversion via Edge Functions
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Edge Developer Platform/
Edge Functions/
Operation Guide/
Function Management/

Function Management

Overview

This document describes how to create, edit, and delete an edge function, and how to configure the rules that trigger the function.

Creating and Deploying a Function

1. Log in to the EdgeOne console, click Site List in the left sidebar, and then click the site to be configured in the site list.
2. On the site details page, click Edge Functions > Function Management.
3. On the edge function management page, click Create function and select using a template to create a function. At this step, you can use a template to create a function based on actual business needs. Taking the current scenario as an example, you can select the "Create Hello World" template to create a function. After selecting the template, click Next.
4. On the create new Edge Function page, configure the relevant parameters as follows:
Function: required, it can only include letters, numbers, hyphens. It must start with a letter and end with a digit or letter, 2-30 characters; it cannot be modified after creation. Example: test-edgefunctions.
Description: optional, it supports up to 60 characters. For instance, custom HTML page and response headers.
Code: the code corresponding to the template.

5. Click Create and deploy. If a dialog box appears as shown, it signifies the successful deployment.

After the deployment is successful, you can click Default access domain name assigned by the platform to verify its effectiveness by triggering the function execution.

If the default function code is deployed, it will be displayed as follows:


Configuring a Triggering Rule

If you want to trigger function execution by setting HOST, URL Path or file suffix of the matching site, there are two steps you can follow:
1. After the function is deployed successfully, click Add triggering rule.
2. On the Add triggering rule page, specify the matching type, operator, and value as needed.

3. Click OK.


Editing the Function

1. On the function management page, select the function you want to modify and click the function name. On the basic information page of the function details, click Edit Code.

2. On the function information page, click Save and deploy or Ctrl + S after modifying the function code.

3. Modify the code and click Save and deploy. If you have configured a triggering rule for the function, a note will be displayed as follows:


Deleting the Function

1. If you need to delete a newly created function, you can go to the function management page, select the function you want to delete, and click the Delete button in the operation column.

2. In the pop-up dialog box, click OK.
Note
Once deleted, the function cannot be restored. The triggering rules of the function will also be deleted.