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import asyncio
try:
import httpx
except ImportError:
raise ImportError("Please install httpx with 'pip install httpx' ")
from rich.json import JSON
from textual.app import App, ComposeResult
from textual.containers import VerticalScroll
from textual.widgets import Input, Static
class DictionaryApp(App):
"""Searches a dictionary API as-you-type."""
CSS_PATH = "dictionary.tcss"
def compose(self) -> ComposeResult:
yield Input(placeholder="Search for a word")
yield VerticalScroll(Static(id="results"), id="results-container")
async def on_input_changed(self, message: Input.Changed) -> None:
"""A coroutine to handle a text changed message."""
if message.value:
# Look up the word in the background
asyncio.create_task(self.lookup_word(message.value))
else:
# Clear the results
self.query_one("#results", Static).update()
async def lookup_word(self, word: str) -> None:
"""Looks up a word."""
url = f"https://api.dictionaryapi.dev/api/v2/entries/en/{word}"
async with httpx.AsyncClient() as client:
results = (await client.get(url)).text
if word == self.query_one(Input).value:
self.query_one("#results", Static).update(JSON(results))
if __name__ == "__main__":
app = DictionaryApp()
app.run()
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