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tvl-depot/monzo_ynab/README.md
William Carroll fafabc6e4a Support OAuth 2.0 login flow for Monzo API 
After some toil and lots of learning, monzo_ynab is receiving access and refresh
tokens from Monzo. I can now use these tokens to fetch my transactions from the
past 24 hours and then forward them along to YNAB.

If YNAB's API requires OAuth 2.0 login flow for authorization, I should be able
to set that up in about an hour, which would be much faster than it took me to
setup the login flow for Monzo. Learning can be a powerful thing.

See the TODOs scattered around for a general idea of some (but not all) of the
work that remains.

TL;DR
- Package monzo_ynab with buildGo
- Move some utility functions to sibling packages
- Add a README with a project overview, installation instructions, and a brief
  note about my ideas for deployment

Note: I have some outstanding questions about how to manage state in Go. Should
I use channels? Should I use a library? Are top-level variables enough? Answers
to some or all of these questions and more coming soon...
2020-02-05 23:33:23 +00:00

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monzo_ynab

Exporting Monzo transactions to my YouNeedABudget.com (i.e. YNAB) account. YNAB unfortunately doesn't currently offer an Monzo integration. As a workaround and a practical excuse to learn Go, I decided to write one myself.

This job is going to run N times per 24 hours. Monzo offers webhooks for reacting to certain types of events. I don't expect I'll need realtime data for my YNAB integration. That may change, however, so it's worth noting.

Installation

Like many other packages in this repository, monzo_ynab is packaged using Nix. To install and use, you have two options:

You can install using nix-build and then run the resulting ./result/bin/monzo_ynab.

> nix-build . && ./result/bin/monzo_ynab

Or you can install using nix-env if you'd like to create the monzo_ynab symlink.

> nix-env -f ~/briefcase/monzo_ynab -i

Deployment

While this project is currently not deployed, my plan is to host it on Google Cloud and run it as a Cloud Run application. What I don't yet know is whether or not this is feasible or a good idea. One complication that I foresee is that the OAuth 2.0 login flow requires a web browser until the access token and refresh tokens are acquired. I'm unsure how to workaround this at the moment.

For more information about the general packaging and deployment strategies I'm currently using, refer to the deployments writeup.