Updated on 2023-11-21 GMT+08:00

Product Features

Function Management

FunctionGraph provides console-based function management.

  • The Node.js, Java, Python, Go, and custom runtimes are supported. Table 1 provides the details.

    You are advised to use the latest runtime version.

    Table 1 Runtimes

    Runtime

    Supported Version

    Node.js

    6.10, 8.10, 10.16, 12.13, 14.18, 16.17, 18.15

    Python

    2.7, 3.6, 3.9, 3.10

    Java

    8.0 and 11

    Go

    1.x

    C#

    .NET Core 2.1 and .NET Core 3.1

    PHP

    7.3

    Custom

    -

  • Multiple code entry modes

    FunctionGraph allows you to edit code inline, upload a ZIP file from Object Storage Service (OBS), or directly upload a ZIP or JAR file. Table 2 lists the code entry modes supported for each runtime.

    Table 2 Code entry modes

    Runtime

    Editing Code Inline

    Uploading a ZIP File

    Uploading a JAR File

    Uploading a ZIP File from OBS

    Node.js

    Supported

    Supported

    Not supported

    Supported

    Python

    Supported

    Supported

    Not supported

    Supported

    Java

    Not supported

    Supported

    Supported

    Supported

    Go

    Not supported

    Supported

    Not supported

    Supported

    C#

    Not supported

    Supported

    Not supported

    Supported

    PHP

    Supported

    Supported

    Not supported

    Supported

    Custom

    Supported

    Supported

    Not supported

    Supported

Trigger

Table 3 lists the invocation modes for different trigger types.

Table 3 Function invocation modes

Trigger

Function Invocation Mode

SMN trigger

Asynchronous invocation

APIG trigger

Synchronous invocation

OBS trigger

Asynchronous invocation

Data Ingestion Service (DIS) trigger

Asynchronous invocation

Timer trigger

Asynchronous invocation

Log Tank Service (LTS) trigger

Asynchronous invocation

Kafka trigger

Asynchronous invocation

Logs and Metrics

FunctionGraph graphically displays function monitoring metrics and collects function running logs, enabling you to view function statuses, and locate problems by querying logs.

To query logs, see Managing Function Logs.

For details about monitoring metric, see Function Monitoring.

For details about tenant-level function monitoring metrics, see Introduction to Dashboard.

Function Initialization

The initializer interface is introduced to:

  • Isolate function initialization and request processing to enable clearer program logic and better structured and higher-performance code.
  • Ensure smooth function upgrade to prevent performance loss during the application layer's cold start initialization. Enable new function instances to automatically execute initialization logic before processing requests.
  • Identify the overhead of application layer initialization, and accurately determine the time for resource scaling and the quantity of required resources. This feature makes request latency more stable when the application load increases and more function instances are required.

Unified Plug-in for Development and Debugging

  • VSCode plug-in (off-cloud):

    Create a function using a template, view the function on the cloud, download the function to a local PC for debugging, use the VSCode plug-in to debug the function, and then push the function to the cloud.

HTTP Functions

You can set Function Type to HTTP Function on the function creation page. HTTP functions are designed to optimize web services. You can send HTTP requests to URLs to trigger function execution. HTTP functions support APIG and API Connect (APIC) triggers only.

This feature is supported only by FunctionGraph v2.

Tracing

You can enable tracing for functions. Then you can go to the Application Performance Management (APM) console to view JVM and tracing information. Currently, only Java functions can be traced.

Custom Images

You can directly package and upload container images. The images are loaded and started by the platform and can be called in a similar way as HTTP functions. Unlike the previous code upload mode, you can use a custom code package, which is flexible and reduces migration costs.

This feature is supported only by FunctionGraph v2.