Cloud Function Management

Use cloud function management commands to view, invoke, copy, and delete cloud functions, as well as manage function versions.

View Function List

tcb fn list

Command Parameters:

Parameter	Description	Default
-l, --limit <limit>	Number of records to return	20
-o, --offset <offset>	Data offset	0

Usage Examples:

# View all functions
tcb fn list

# View first 10 functions
tcb fn list -l 10

# View functions 21-40
tcb fn list -l 20 -o 20

View Function Details

tcb fn detail <functionName>

Usage Example:

# View detailed information for app function
tcb fn detail app

Download Function Code

tcb fn code download <functionName> [destPath]

Parameter Description:

Parameter	Description	Required
functionName	Function name	Yes
destPath	Download destination path	No

Usage Examples:

# Download to default directory
tcb fn code download app

# Download to specified directory
tcb fn code download app ./my-functions/app

Update Function Code

tcb fn code update <functionName>

Usage Example:

# Update code for app function
tcb fn code update app

Invoke Cloud Function

# Invoke specified function
tcb fn invoke <functionName>

# Invoke all functions in config file
tcb fn invoke

Passing Parameters:

# Linux / macOS
tcb fn invoke app --params '{"key1": "value1", "key2": "value2"}'

# Windows (requires escaping double quotes)
tcb fn invoke app --params "{\"key1\": \"value1\", \"key2\": \"value2\"}"

Usage Examples:

# Invoke app function (no parameters)
tcb fn invoke app

# Invoke function with parameters
tcb fn invoke app --params '{"userId": "123", "action": "query"}'

# Invoke all functions
tcb fn invoke

Copy Cloud Function

tcb fn copy <sourceName> <targetName>

Usage Examples:

# Copy app function as app2
tcb fn copy app app2

# Force overwrite existing target function
tcb fn copy app app2 --force

Delete Cloud Function

# Delete specified function
tcb fn delete <functionName>

# Delete all functions in config file
tcb fn delete

Usage Examples:

# Delete app function
tcb fn delete app

# Delete all functions
tcb fn delete

Version Management

Publish New Version

tcb fn publish-version <functionName> [description]

Parameter Description:

Parameter	Description	Required
functionName	Function name	Yes
description	Version description	No

Usage Examples:

# Publish new version (no description)
tcb fn publish-version app

# Publish new version with description
tcb fn publish-version app "Fixed login logic issue"

# Publish version with feature update
tcb fn publish-version app "v1.2.0: Added user profiling feature"

View Version List

tcb fn list-function-versions <functionName>

Usage Example:

# View all versions of app function
tcb fn list-function-versions app

Important Notes

Download Function Code:

• If destPath is not specified, code will be downloaded to directory configured in functionRoot
• After download, a folder named after the function will be automatically created

Difference between code update and deploy:

• tcb fn code update only updates function code and entry point, faster
• tcb fn deploy updates code, configuration, and triggers, more comprehensive

Copy Cloud Function:

• Will copy function code, configuration (timeout, memory, environment variables, VPC, etc.), entry point, and runtime
• Will NOT copy function triggers, need manual configuration
• If target function name exists, use --force parameter to force overwrite

Delete Cloud Function:

• Deletion operation is irreversible, please operate with caution
• Recommended to backup function code using tcb fn code download before deletion
• After deletion, related triggers, logs, etc. will also be cleaned up

Version Management:

• After function creation, it has a default $LATEST version (latest version)
• Only $LATEST version configuration and code can be modified
• When publishing new version, an immutable snapshot is created based on current $LATEST version
• Published version numbers increment (1, 2, 3...), content cannot be modified