Network error after first GraphQL request

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• Summary When I try to use the apollo-link-scalars as advised in the README I get following error after I try to do first GraphQL query:

Uncaught (in promise) Error: Network error: operation.getContext is not a function
    at new ApolloError (bundle.esm.js:76)
    at bundle.esm.js:1469

My apollo client setup is following:

const cache = new InMemoryCache()

const schemaDocument = loader('../common/schema.graphql')

const link = ApolloLink.from([
  withScalars({
    schema: buildASTSchema(schemaDocument),
    typesMap: { DateTime: GraphQLDateTime }
  }),
  new HttpLink()
])

const client = new ApolloClient({
  cache,
  link
})

The error disappears when the apollo-scalars-link is removed.

I’m have an application created by Create React App.

Let me know if there’s any other information I can provide, however this is all I know right now.

[JakubPetriska]

This works now. Thank you very much!!!

[eturino]

for more info, it was a silly mistake in the serialization process, which replaced the original operation with a new object with the serialized variables… but it lost the prototype in the process. That meant that the getContext function was not there anymore. 🤦‍♂