Validate config at runtime

[wtrocki]

Feature Request

Idea is to use runtime interface checker for js code

https://github.com/gristlabs/ts-interface-checker

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[Eunovo]

Please assign this to me

[Eunovo]

@wtrocki To be clear about what you want I'm using an example. You want this config here to be validated before it is used because if this library is used in js project, an invalid config can be passed

[wtrocki]

I'm more into some basic validation for ApolloConfig that is initalized here:

offix/packages/offix-client/src/ApolloOfflineClient.ts

Line 50 in bc958d4

const config = new ApolloOfflineClientConfig(options);