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apolloapollo-clientreact-apollo

Apollo-client without graphql endpoint

When I see sample apps which uses Apollo-client I see following constructor.When I read HttpLink document, it seems that graphql endpoint must be set as uribut in following code, I couldn't find them.

export const getApolloClient = (): ApolloClient<NormalizedCacheObject> =>
  new ApolloClient({
    cache: new InMemoryCache(),
    link: new HttpLink({ credentials: 'same-origin', fetch: customFetch }),
  });

My question is why this code work well ? I am totally novice of that, if someone knows this will you please let me know. Thanks

Solution

  • The HttpLink constructor option uri has a default value of /graphql. So as long as that is the correct path it will work without passing a uri option into the constructor.

    So your example code:

    HttpLink({ credentials: 'same-origin', fetch: customFetch })

    is equivalent to

    HttpLink({ credentials: 'same-origin', fetch: customFetch, uri: '/graphql' })