15 fmp provider

[jaapterwoerds]

Here a first version of an implementation of an data provider for https://financialmodelingprep.com/. I factored out most code so that implementing a data provider is basically implementing one function that interacts with the data provider's API.

Feedback is appreciated!

Closes #15

[jaapterwoerds]

GIve me a moment to update this PR with changes from master. In addition I want to make changes so that the training data and validation data can make use of as much data as available from the provider (see also #21 )

[hellno]

hey :) @jrdi @jaapterwoerds
what's the status on this PR?

I thought about adding AlphaVantage support to opensignals.
Having this PR merged or agreeing on a structure for common code <> data-provider-specific code would help.

Thanks!

[jrdi]

hey, imo it would be better if we first do a PR refactoring of the code and move the required code to a common place, then we can start working on other changes adding more providers.

[jaapterwoerds]

@jrdi @hellno Sounds like a solid plan. I have some data issues to figure out anyway before this can be usable anyway. I can rework this into a separate PR if you'd like?

[jaapterwoerds]

@jrdo @hellno This PR seems the simplest first step that could work: #28. Let me know what you think.