Integrate Dash in Flask

[bchen39]

Please also check the links to my test applications, using app context and middleware

Closes ploomber.io#198

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📚 Documentation preview 📚: https://ploomber-doc--263.org.readthedocs.build/en/263/

[bryannho]

@bchen39 one comment, also please let us know when the blog is ready too

[bryannho]

LG overall one small change

[neelasha23]

I think it would be better to organize the code files into 2 subfolders: app_context and middleware, each containing its complete set of files. @bchen39

[bchen39]

@neelasha23 @bryannho Based on Neelasha's suggestion, I will organize my code into 2 folders: app_context and middleware. Each of the folder will contain the following:

• app.py
• dash_apps/simple_app.py
• dash_apps/population.py
• requirements.txt

I will also put the images in a separate folder but leave the README in the main folder

To upload, the user can zip the content in the folder or directly deploy the app in the command line. The user won't need to cp and ignore with this setup.

I will update the content in my blog as well. Let me know if this works!

[bchen39]

I realized earlier that I had misunderstood the fundamental difference between the two approaches:

• The middleware option can also use application context to share Flask data.
• The real difference is whether we are hosting the Dash apps on the server or mounting these apps separately using a Middleware.

I have made the changes to the project structure and rewrote my README. Please check the web apps: middleware approach and the hosting approach. I will also reflect on these changes in my blog. Let me know if you have other questions or comments.

[bryannho]

LG overall, I think the change makes a lot of sense. Small comments

[bryannho]

@bchen39 is this ready for review?