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Sorna API Client Library

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The API client library for Sorna

Usage

You should set the access key and secret key as environment variables to use the API. Grab your keypair from cloud.sorna.io or your cluster admin.

export SORNA_ACCESS_KEY=...
export SORNA_SECRET_KEY=...

# optional (for local clusters)
export SORNA_ENDPOINT="https://my-precious-cluster/"

Command-line Interface

Use sorna.cli module with run command.

To run the code specified in the command line directly, use -c option to pass the code string.

$ python -m sorna.cli run python3 -c "print('hello world')"
∙ Client session token: d3694dda6e5a9f1e5c718e07bba291a9
✔ Kernel (ID: zuF1OzMIhFknyjUl7Apbvg) is ready.
hello world
✔ Cleaned up the kernel.

For more large programs, you may upload multiple files and then build & execute them. The below is a simple example to run a C program.

$ python -m sorna.cli run c main.c mylib.c mylib.h
∙ Client session token: 1c352a572bc751a81d1f812186093c47
✔ Kernel (ID: kJ6CgWR7Tz3_v2WsDHOwLQ) is ready.
✔ Uploading done.
✔ Build finished.
myvalue is 42
✔ Cleaned up the kernel.

Please refer the --help manual provided by the run command.

Synchronous API

from sorna.kernel import Kernel

kern = Kernel.get_or_create('lua5', client_token='abc')
result = kern.execute('print("hello world")', mode='query')
print(result['console'])
kern.destroy()

You need to take care of client_token because it determines whether to reuse kernel sessions or not. Sorna cloud has a timeout so that it terminates long-idle kernel sessions, but within the timeout, any kernel creation requests with the same client_token let Sorna cloud to reuse the kernel.

Asynchronous API

import asyncio
from sorna.asyncio.kernel import AsyncKernel

async def main():
    kern = await AsyncKernel.get_or_create('lua5', client_token='abc')
    result = await kern.execute('print("hello world")', mode='query')
    print(result['console'])
    await kern.destroy()

loop = asyncio.get_event_loop()
try:
    loop.run_until_complete(main())
finally:
    loop.close()

All the methods of AsyncKernel objects are exactly same to the synchronous version, except that they are coroutines.

Additionally, AsyncKernel offers async-only method stream_pty(). It returns a StreamPty object which allows you to access a pseudo-tty of the kernel. StreamPty works like an async-generator and provides methods to send stdin inputs as well as resize the terminal.

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