Bad Gateway error

[sepiariver]

Hi! Deta looks like it could be really fast and amazing!

Deployed my first micro here: https://0ay137.deta.dev/

It uses FastAPI. Unfortunately it returns a Bad Gateway without anything showing up in Visor.

• How can I view logs if visor doesn't show anything?
• What else should I do to troubleshoot this?

Thanks so much Deta team :)

[jnsougata]

use deta logs --follow at the root of your micro dir to follow realtime logs

[sepiariver]

Thanks @jnsougata that was super helpful!

Unfortunately it seems to be an issue with FastAPI in the deta environment. I think this, because I'm not calling orjson in my userland code, and also it works locally but not in the deta micro.

That said I'm brand new to deta so likely I'm wrong LOL

Here's what the log output though:

[2022-09-20T23:23:09-07:00] [ERROR] AttributeError: module 'orjson' has no attribute 'JSONEncoder'
Traceback (most recent call last):
  File "/var/lang/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/var/task/_entry.py", line 1, in <module>
    from detalib.handler import handle
  File "/opt/python/detalib/handler.py", line 3, in <module>
    from . import handlers
  File "/opt/python/detalib/handlers.py", line 1, in <module>
    from .event import parse_event
  File "/opt/python/detalib/event.py", line 1, in <module>
    from .helpers import json
  File "/opt/python/detalib/helpers.py", line 16, in <module>
    class CustomJSONEncoder(json.JSONEncoder):
[2022-09-20T23:23:09-07:00] Unknown application error occurred

If something pops out at anyone, as being a lead to chase down, that'd be appreciated. Otherwise thanks for the help already :)

[jnsougata]

orjson doesn't work with micros. that's a known issue

[SoloW1ngPixy]

orjson doesn't work with micros. that's a known issue

For more information, I installed FastAPI using the command on the documentation
pip install "fastapi[all]" and I put the dependencies into my requirements.txt.

I delete all packages and re-installed fastapi using the command pip install fastapi and now it works.
It seem that the "all" installed some sub-library that used orjson which is not supported by DETA.

[SoloW1ngPixy]

Same problem here. My application is a simple FastAPI app and I can't use it.

Same error for each route (even simple route without any code)

[2022-12-05T00:07:41Z] [ERROR] AttributeError: module 'orjson' has no attribute 'JSONEncoder'
Traceback (most recent call last):
  File "/var/lang/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/var/task/_entry.py", line 1, in <module>
    from detalib.handler import handle
  File "/opt/python/detalib/handler.py", line 3, in <module>
    from . import handlers
  File "/opt/python/detalib/handlers.py", line 1, in <module>
    from .event import parse_event
  File "/opt/python/detalib/event.py", line 1, in <module>
    from .helpers import json
  File "/opt/python/detalib/helpers.py", line 16, in <module>
    class CustomJSONEncoder(json.JSONEncoder):
[2022-12-05T00:07:41Z] Unknown application error occurred
Runtime.Unknown

[2022-12-05T00:07:41Z] [ERROR] AttributeError: module 'orjson' has no attribute 'JSONEncoder'
Traceback (most recent call last):
  File "/var/lang/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/var/task/_entry.py", line 1, in <module>
    from detalib.handler import handle
  File "/opt/python/detalib/handler.py", line 3, in <module>
    from . import handlers
  File "/opt/python/detalib/handlers.py", line 1, in <module>
    from .event import parse_event
  File "/opt/python/detalib/event.py", line 1, in <module>
    from .helpers import json
  File "/opt/python/detalib/helpers.py", line 16, in <module>
    class CustomJSONEncoder(json.JSONEncoder):
[2022-12-05T00:16:48Z] [ERROR] AttributeError: module 'orjson' has no attribute 'JSONEncoder'
Traceback (most recent call last):
  File "/var/lang/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/var/task/_entry.py", line 1, in <module>
    from detalib.handler import handle
  File "/opt/python/detalib/handler.py", line 3, in <module>
    from . import handlers
  File "/opt/python/detalib/handlers.py", line 1, in <module>
    from .event import parse_event
  File "/opt/python/detalib/event.py", line 1, in <module>
    from .helpers import json
  File "/opt/python/detalib/helpers.py", line 16, in <module>
    class CustomJSONEncoder(json.JSONEncoder):
[2022-12-05T00:16:48Z] [ERROR] AttributeError: module 'orjson' has no attribute 'JSONEncoder'
Traceback (most recent call last):
  File "/var/lang/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/var/task/_entry.py", line 1, in <module>
    from detalib.handler import handle
  File "/opt/python/detalib/handler.py", line 3, in <module>
    from . import handlers
  File "/opt/python/detalib/handlers.py", line 1, in <module>
    from .event import parse_event
  File "/opt/python/detalib/event.py", line 1, in <module>
    from .helpers import json
  File "/opt/python/detalib/helpers.py", line 16, in <module>
    class CustomJSONEncoder(json.JSONEncoder):
[2022-12-05T00:16:48Z] Unknown application error occurred
Runtime.Unknown

Here's my requirements

anyio==3.6.2
attrs==22.1.0
certifi==2022.9.24
click==8.1.3
deta==1.1.0
dnspython==2.2.1
email-validator==1.3.0
exceptiongroup==1.0.4
fastapi==0.88.0
h11==0.14.0
httpcore==0.16.2
httptools==0.5.0
httpx==0.23.1
idna==3.4
iniconfig==1.1.1
itsdangerous==2.1.2
Jinja2==3.1.2
MarkupSafe==2.1.1
orjson==3.8.3
packaging==21.3
pluggy==1.0.0
pydantic==1.10.2
pyparsing==3.0.9
pytest==7.2.0
python-dotenv==0.21.0
python-multipart==0.0.5
PyYAML==6.0
rfc3986==1.5.0
six==1.16.0
sniffio==1.3.0
starlette==0.22.0
tomli==2.0.1
typing_extensions==4.4.0
ujson==5.6.0
uvicorn==0.20.0
uvloop==0.17.0
watchfiles==0.18.1
websockets==10.4

My code works on my local environnement on Python 3.9.

[jnsougata]

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