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Interface: WASIOptions

Properties​

args?​

optional args?: string[]

Command line arguments.

env?​

optional env?: Record<string, string>

Environment variables as key-value pairs.

preopens?​

optional preopens?: Record<string, string>

Pre-opened directories mapping guest paths to host paths.

returnOnExit?​

optional returnOnExit?: boolean

By default, when the WASI application calls proc_exit(), WASI.start returns the exit code rather than terminating the process. Set to false to make the process exit with that code instead.

Default​

true

stderr?​

optional stderr?: number

The file descriptor used as standard error in the WASI application. On Windows this must be a regular file or standard-stream fd; sockets and pipes are not supported.

Default​

2

stdin?​

optional stdin?: number

The file descriptor used as standard input in the WASI application. On Windows this must be a regular file or standard-stream fd; sockets and pipes are not supported.

Default​

0

stdout?​

optional stdout?: number

The file descriptor used as standard output in the WASI application. On Windows this must be a regular file or standard-stream fd; sockets and pipes are not supported.

Default​

1

version​

version: WASIVersion

Required. The WASI version to use.