Add key argument to serialize and unserialize invocations

[MatiasArriola]

Hello,

First of all, thanks for writing this library!

I came here looking for a redux-persist replacement after hitting some critical unresolved issues in my react-native apps. I'm relieved the move to redux-remember was relatively easy.

The only thing I was missing is some way to omit certain keys per reducer. I figured out I could do that by passing a custom serialize. But there was no way I could tell which slice I'm serializing from inside the serializer, hence this patch.

Here some code that illustrates this use-case:

const serializationOmissions = {
  auth: ['forgotPasswordCode'],
  home: ['loading'],
};

const serialize = (data: object, key = '') => {
  const result = omit(data, serializationOmissions[key]);
  return JSON.stringify(result);
};

const enhancer = rememberEnhancer(
      someStorage,
      ['auth', 'home', 'anyOtherSlice'],
      { serialize }
),

Just wanted to contribute back the changes I needed for my projects, hope you find it valuable.

Cheers!

[zewish]

Hey @MatiasArriola. Thanks for the PR and sorry for answering so late, but I've been quite busy lately. At first glance seems a reasonable proposal. I'll have a look and get this merged and released today :)

[coveralls]

Pull Request Test Coverage Report for Build 1270378095

• 3 of 3 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 1087060535:	0.0%
Covered Lines:	64
Relevant Lines:	64

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💛 - Coveralls

[zewish]

@MatiasArriola, I made the extra key parameter in the serialize and unserialize functions required, this way we can guarantee that your serialize/unserialize function always has a proper key to check against.

The latest version 3.0.1 is now released on npm, this version includes the extra key parameter you needed.