KPC
Kevin Powell - Community•3y ago
dys 🐙

TypeScript `|` Combinator

I have the following code: 
ceramic.did = new DID({
  provider: threeID.getDidProvider(),
  resolver: {
    ...get3IDResolver(ceramic), // returns a ResolverRegistry
    ...getKeyResolver(),        // returns a ResolverRegistry
  } as ResolverRegistry,
});
ceramic.did = new DID({
  provider: threeID.getDidProvider(),
  resolver: {
    ...get3IDResolver(ceramic), // returns a ResolverRegistry
    ...getKeyResolver(),        // returns a ResolverRegistry
  } as ResolverRegistry,
});
And, TypeScript is giving me the following error: 
Type 'ResolverRegistry' is not assignable to type 'Resolver | ResolverRegistry | undefined'.
  Type 'ResolverRegistry' is missing the following properties from type 'Resolver': registry, cache, resolvets(2322)
(property) resolver?: Resolver | ResolverRegistry | undefined
Type 'ResolverRegistry' is not assignable to type 'Resolver | ResolverRegistry | undefined'.
  Type 'ResolverRegistry' is missing the following properties from type 'Resolver': registry, cache, resolvets(2322)
(property) resolver?: Resolver | ResolverRegistry | undefined
I thought that let pet: Cat | Dog means I can assign either a Cat or Dog to it. Is that not right?
1 Reply
dys 🐙
dys 🐙OP•3y ago
Nevermind. I think it might be complaining about the Resolver type within ResolverRegistry. There were two different versions of the library included. I set a "resolutions" for the more recent version in my package.json & TS is now happy.

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