Function Runtimes

Runtime

To create a function in FunctionGraph, you need to specify a runtime that passes events, context, and responses. Choose from a built-in runtime or customize your own.

Supported Runtimes

The Node.js, Java, Python, Go, C#, PHP, Cangjie, and custom runtimes are supported. Table 1 lists the supported runtimes.

**Table 1** Runtime description
Runtime	Supported Version	SDK	Development Overview
Node.js	6.10, 8.10, 10.16, 12.13, 14.18, 16.17, 18.15, 20.15	-	Function Development Overview
Python	2.7, 3.6, 3.9, 3.10, 3.12	-	Function Development Overview
Java	8, 11, 17, 21 (only available in ME-Riyadh and TR-Istanbul)	Java SDK (software package verification file: fss-java-sdk_sha256)	Function Development Overview
C#	.NET Core 2.1, .NET Core 3.1, .NET Core 6.0, .NET Core 8.0 (only in ME-Riyadh and TR-Istanbul)	C# SDK (software package verification file: fssCsharp_sha256)	C# Function Development Overview
Go	1.x	Go 1.x SDK (software package verification file: Go SDK_sha256)	Function Development Overview
PHP	7.3 and 8.3	-	PHP Function Development Overview
Cangjie	1.0	-	-
Custom	-	-	-

Runtime Deprecation

For security and sustainable development, FunctionGraph will no longer provide technical support and security updates for some runtimes.

Table 2 shows the deprecation policy, which is divided into three stages.

**Table 2** Deprecation stage description
Stage	Description
Stage 1: Notify customers 180 days in advance	You will be notified of the runtime deprecation through product notices, runtime deprecation marks, and emails by Huawei Cloud.
Stage 2: Deprecate runtimes	Security patches, feature updates, or technical support for these runtimes will no longer be provided by Huawei Cloud. Functions cannot be created using these runtimes. Existing functions can continue to update their code or configurations and run.
Stage 3: 30 days after runtime deprecation	Security patches, feature updates, or technical support for these runtimes will no longer be provided by Huawei Cloud. Functions cannot be created or updated using these runtimes. Existing functions can continue running. You are advised to migrate your functions to the latest supported runtimes for technical support and security updates.

Table 3 is our runtime deprecation plan. Runtimes not included in this table are not subject to this deprecation plan.

**Table 3** Runtime deprecation plan
Runtime	Stage 1	Stage 2	Stage 3
Node.js 6.10	December 15, 2025	June 15, 2026	July 15, 2026
Node.js 8.10	December 15, 2025	June 15, 2026	July 15, 2026
Python 2.7	December 15, 2025	June 15, 2026	July 15, 2026

Sample Project Packages

Table 4 provides the links for downloading the sample project packages mentioned in this document. You can download the project packages to a local path and upload them when creating functions.

For the operation process of each runtime, see the event function development sections.

**Table 4** Download links of the sample project packages
Function	Project Package	Software Package Verification File
Node.js function	fss_examples_nodejs.zip	fss_examples_nodejs.sha256
Python function	fss_examples_python3.zip	fss_examples_python3_sha256
Java function	fss_example_java17.jar demo-with-dependencies_java17.jar (maven project)	fss_example_java_sha256 demo-with-dependencies_java17.jar.sha256
PHP function	fss_examples_php7.3.zip	fss_examples_php7.3_sha256

Helpful Links

For details about the trigger events supported by each runtime, see Supported Trigger Events for FunctionGraph.
For details about the packaging specifications of each runtime project, see Function Project Packaging Rules.

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