fastn babel

[amitu]

fastn babel python foo.py will launch browser window, and display content of index.

foo.py:

import fastn

ftd = fastn.package(index="""
-- import: foo.com/bar/baz

-- ftd.text: hello
$on-click$: bar($value=$f)

-- ftd.text: yo
if: $f

-- integer $v: bar()

-- boolean $f:
$processor$: my-foo
value: $v

-- slider:
$value: $v
""",
    "foo"="-- ftd.text: foo",
    dependencies=[
        "foo.com as f",
    ]
)

@ftd.processor("my-foo")
def foo(_):
    return False


@ftd.processor(needs=["y", "z"])
def bar(value, y):
    value.get() + y

Whenever the processor, function or event handler is invoked from FTD, FTD will talk to babel server (python foo.py will launch a HTTP server, implementing fastn-babel api and is called babel server).

Transparent fastn

We should implement this in such a way that running python foo.py is equivalent to fastn babel python foo.py. Python fastn package will ship full fastn logic as well.

So that people from pure python world can use fastn by only installing the python fastn package.