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Panel with Tranquilizer REST API
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import ast | |
import requests | |
url = 'http://localhost:5006/rest/post_data' | |
def post(value): | |
data = {'data': value} | |
response = requests.post(url, data = data) | |
if response.status_code==200: | |
print(ast.literal_eval(response.text)) | |
else: | |
print(response.status_code) | |
post("Hello") | |
post("Panel") | |
post("World") | |
post("") |
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panel | |
requests | |
tranquilizer |
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"""Panel provides functionality for integration with REST API providers. Currently Param and | |
Tranquilizer. | |
When you `panel serve` the `script.py` you need to add `--rest-provider param` or | |
`--rest-provider tranquilizer` to serve the REST API. | |
For more check out the [REST APIs Introduction](https://blog.holoviz.org/panel_0.10.0.html#REST-APIs) | |
""" | |
import param | |
import panel as pn | |
import traceback as tb | |
from tranquilizer import tranquilize | |
pn.extension(sizing_mode="stretch_width") | |
class ExternalDataHandler(param.Parameterized): | |
data = param.String(default="") | |
if not "data_handler" in pn.state.cache: | |
# This section is run once the first time the page is loaded | |
data_handler = pn.state.cache["data_handler"] = ExternalDataHandler() | |
else: | |
data_handler = pn.state.cache["data_handler"] | |
@tranquilize(method="post") | |
def post_data(data): | |
try: | |
pn.state.cache["data_handler"].data = data | |
return f"transaction succeed" | |
except Exception as e: | |
return ''.join(tb.format_exception(None, e, e.__traceback__)) | |
@tranquilize(method="get") | |
def data(): | |
try: | |
return {"data": data_handler.data} | |
except Exception as e: | |
return ''.join(tb.format_exception(None, e, e.__traceback__)) | |
text = pn.widgets.StaticText(value=str(data_handler.data)) | |
@pn.depends(data=pn.state.cache["data_handler"].param.data, watch=True) | |
def on_data_received(data): | |
text.value = str({"data": data}) | |
pn.template.FastListTemplate( | |
site="Awesome Panel", title="Panel with REST API", main=[__doc__, text], | |
).servable() |
I have followed your approach to do the task.
"http://localhost:5006/rest/data"
and
"http://localhost:5006/rest/post_data"
It works perfectly.
However, I put my panel apps to nginx proxy .
I have to set --prefix="rest" in panel in order to run into nginx proxy successfully.
However, when I set --prefix="rest" in panel . Then I cannot get the data from GET and POST method.
"http://mydomainname/rest/rest/post_data"
and
"http://mydomainname/rest/rest/data"
Do you have any method to solve this problem?
Thank you
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Panel App with REST API
Panel provides functionality for integration with REST API providers. Currently Param and
Tranquilizer.
For more check out the REST APIs Introduction
Credits
Installation
Create a virtual environment and run run
pip install panel requests tranquilizer
.Run
To serve the app run
panel serve app.py --rest-provider tranquilizer --autoreload
.Then run the code from
messages.py
in a python terminal or jupyter notebook.Video
panel_with_rest_api.mp4
Speed up Video and GIF
panel_with_rest_api_speedup.mp4