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&

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Chris Ball cball_

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Disclaimers

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vs

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vs

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vs

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These are all tools to build apps.

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You are not your tools.

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What is GraphQL?

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A specification that enforces a schema.

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The schema validates
 client requests.

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An application layer.

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Gives power to
 the client.

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What?!

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Here’s a schema.

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2 Special Schema Types.

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Query

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Mutation

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Variables!

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GraphQL Advantages

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Advantages ★ No more “hey can you make this endpoint
 return this now?” discussions ★ Reduce number of requests ★ Smaller payloads (return only what you need) ★ camelCase conventions ★ Client determines shape of response ★ Subscriptions / websockets built in

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Advantages ★ “Wrap” an existing REST API ★ Schema Stitching to combine multiple GQL APIs as one ★ No more thinking about requests/responses ★ Tooling: GraphiQL is amazing ★ Introspection: Client can send query to get the schema ★ Fragments

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GraphiQL & Introspection

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Ok, how can I use this in Ember?

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I was going to show examples using

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Configure Apollo

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Do some queries

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How do I fetch a different org?

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Cool story. How do you query 
 for multiple items?

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Do a mutation

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Subscriptions
 are also a thing.

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Ember Data?

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What about Tests / Mocking / Mirage?

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https://github.com/bgentry/ember-apollo-client/blob/master/tests/helpers/start-pretender.js https://www.apollographql.com/docs/link/links/schema.html#Mocking

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Different Folder Structure?

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https://github.com/bgentry/ember-apollo-client/blob/master/tests/helpers/start-pretender.js https://www.apollographql.com/docs/link/links/schema.html#Mocking

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Resources

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https://github.com/bgentry/ember-apollo-client http://graphql.org/learn/ https://www.apollographql.com/docs http://graphql.org/blog/rest-api-graphql-wrapper/ https://www.howtographql.com/ember-apollo