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Exercises.md

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Exercises

cd node
npm install
npm start

Surf to http://localhost:4000 for the Apollo Dev Client.
Code is in node/4.confac.

Schema

  • Implement a global search function that returns users, clients and consultants (__typename)
  • Implement project lookup for consultantId
    • Add @include(if: $withConsultant) directive in the schema
  • Implement the projectMonth schema and resolvers.

Scalars

  • Implement the Date ScalarType for the Audit type
  • Save a Consultant.telephone as a number but display as "(0476) 40 42 46"
  • Implement validation for client.btw
// Example code for btw/iban
#> npm install --save iban

import Iban from 'iban';
Iban.isValid(client.btw)
Iban.printFormat(client.btw)

// Throw an error when it is not valid?
import { GraphQLError } from 'graphql';

throw new GraphQLError(message, {
  extensions: { code: 'INVALID_IBAN' },
});

Directives

  • Add a transformer for adding the user.alias and client.slug automagically (see upperDirectiveTransformer.js)

Frontend

  • Integrate the Apollo-Client in the React frontend instead of the current fetch

Advanced

  • Setup Subscriptions to listen to changes on a collection
  • Setup the Apollo Router and Federation