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Discussion on: The magic of the Node interface

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zth profile image
Gabriel Nordeborn Author

Hi Sebastian, and thank you!

  1. In pseudo code, something like:
const makeGloballyUniqueId = (
  typename: string, 
  identifier: string
)  => base64.encode(`${typename}:${identifier}`);

It's really not more complicated than that for generating the actual ID. You could then abstract that further and do a small function that can generate a resolver for you, that you can re-use throughout your schema.

  1. I'd say, in the simplest possible form, it'd look like this (warning for more pseudo-code):
const [typename, id] = decodeGloballyUniqueId(id);

switch(typename) {
  case "User": 
    return User.get(id);
  case "BlogPost":
    return BlogPost.get(id);
....

So, it's just a matter of decoding the id and extracting the information you're after, and then use that to resolve the relevant object you need.

Does that make sense?

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sfratini profile image
Sebastian Fratini

Thank you! Yes, this is something similar to what I was implementing. Since I am using sequelize, I was trying to avoid code duplication and maybe thought if it was possible to have a hook or something in the graphql schema so I dont have to manually translate each ID on each resolver.

The code has perfect sense and I'll check the best way to implement it.

Thanks again!