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© 2018 – Creditas Soluções Financeiras Ltda. 1 Modeling GraphQL Renato Benkendorf

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© 2018 – Creditas Soluções Financeiras Ltda. 2 @renatobenks

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© 2018 – Creditas Soluções Financeiras Ltda. 3

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© 2018 – Creditas Soluções Financeiras Ltda. 4

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© 2018 – Creditas Soluções Financeiras Ltda. 5 © 2018 – Creditas Consultoria Financeira Ltda. Software Engineer @renatobenks

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© 2018 – Creditas Soluções Financeiras Ltda. 6 © 2018 – Creditas Consultoria Financeira Ltda. Software Engineer @renatobenks creditas.com.br @CreditasBR Fintech Plataforma online Empréstimo com garantia

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© 2018 – Creditas Soluções Financeiras Ltda. 7

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© 2018 – Creditas Soluções Financeiras Ltda. 8 Modeling GraphQL Renato Benkendorf

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© 2018 – Creditas Soluções Financeiras Ltda. 9 Where it came from?

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© 2018 – Creditas Soluções Financeiras Ltda. 10

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© 2018 – Creditas Soluções Financeiras Ltda. 11 Scaling GraphQL

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© 2018 – Creditas Soluções Financeiras Ltda. 12 Scaling GraphQL 1. multiple clients

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© 2018 – Creditas Soluções Financeiras Ltda. 13 Scaling GraphQL 1. multiple clients 2. multiple teams

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© 2018 – Creditas Soluções Financeiras Ltda. 14 Scaling GraphQL Aggregation layer (ESB, BFF, API Gateway, Orchestrator)

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© 2018 – Creditas Soluções Financeiras Ltda. 15 Scaling GraphQL integrate business domain to the clients

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© 2018 – Creditas Soluções Financeiras Ltda. 16 Scaling GraphQL

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© 2018 – Creditas Soluções Financeiras Ltda. 17 Demystifying GraphQL

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© 2018 – Creditas Soluções Financeiras Ltda. 18 Demystifying GraphQL QL (Query-Language) Graph

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© 2018 – Creditas Soluções Financeiras Ltda. 19 Demystifying GraphQL Graph ● The objects are vertices or nodes. ● The links are edges.

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© 2018 – Creditas Soluções Financeiras Ltda. 20 Demystifying GraphQL Query language (QL) refers to any computer programming language that requests and retrieves data by sending queries

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© 2018 – Creditas Soluções Financeiras Ltda. 21 Demystifying GraphQL GraphQL ● The nodes are the object types. ● The edges are the fields.

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© 2018 – Creditas Soluções Financeiras Ltda. 22 and what about modelling?

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© 2018 – Creditas Soluções Financeiras Ltda. 23

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© 2018 – Creditas Soluções Financeiras Ltda. 24 Modeling a GraphQL API

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© 2018 – Creditas Soluções Financeiras Ltda. 25 Modeling a GraphQL API 1. data modelling

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© 2018 – Creditas Soluções Financeiras Ltda. 26 Modeling a GraphQL API 1. data modelling 2. context modelling

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© 2018 – Creditas Soluções Financeiras Ltda. 27 Modeling a GraphQL API data modelling 1. Using “endpoint style” rather than thinking in graphs 2. Mapping their GraphQL schema directly to their database tables (foreign keys and all) 3. Mapping their GraphQL schema directly to their back-end data model (eg. your model classes from your ORM or the like)

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© 2018 – Creditas Soluções Financeiras Ltda. 28 Modeling a GraphQL API data modelling Using “endpoint style” rather than thinking in graphs

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© 2018 – Creditas Soluções Financeiras Ltda. 29 Modeling a GraphQL API data modelling Using “endpoint style” rather than thinking in graphs

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© 2018 – Creditas Soluções Financeiras Ltda. 30 Modeling a GraphQL API data modelling Mapping their GraphQL schema directly to their database tables

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© 2018 – Creditas Soluções Financeiras Ltda. 31 Modeling a GraphQL API data modelling Mapping their GraphQL schema directly to their database tables

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© 2018 – Creditas Soluções Financeiras Ltda. 32 Modeling a GraphQL API data modelling thinking in graphs

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© 2018 – Creditas Soluções Financeiras Ltda. 33 Modeling a GraphQL API data modelling thinking in graphs

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© 2018 – Creditas Soluções Financeiras Ltda. 34 data modelling Mapping their GraphQL schema directly to their back-end data model Modeling a GraphQL API

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© 2018 – Creditas Soluções Financeiras Ltda. 35 data modelling Mapping their GraphQL schema directly to their back-end data model Modeling a GraphQL API

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© 2018 – Creditas Soluções Financeiras Ltda. 36 Modeling a GraphQL API data modelling thinking in graphs

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© 2018 – Creditas Soluções Financeiras Ltda. 37 Modeling a GraphQL API data modelling thinking in graphs

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© 2018 – Creditas Soluções Financeiras Ltda. 38 Modeling a GraphQL API context modelling

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© 2018 – Creditas Soluções Financeiras Ltda. 39 Modeling a GraphQL API context modelling Sales context

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© 2018 – Creditas Soluções Financeiras Ltda. 40 Modeling a GraphQL API context modelling Ticket context

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© 2018 – Creditas Soluções Financeiras Ltda. 41 Modeling a GraphQL API context modelling Sales + Ticket

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© 2018 – Creditas Soluções Financeiras Ltda. 42 "With GraphQL, you model your business domain as a graph" Modeling a GraphQL API

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© 2018 – Creditas Soluções Financeiras Ltda. 43 Use case

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© 2018 – Creditas Soluções Financeiras Ltda. 44

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© 2018 – Creditas Soluções Financeiras Ltda. 45 Use case current scenario ● domain business currently is servicing ● domain data in redux ● mapping the boundaries

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© 2018 – Creditas Soluções Financeiras Ltda. 46 Use case next challenges ● app cross-squad ● app composition ● manage a lot of data from different domains

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© 2018 – Creditas Soluções Financeiras Ltda. 47 © 2018 – Creditas Consultoria Financeira Ltda. We're hiring vagas.creditas.com.br

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© 2018 – Creditas Soluções Financeiras Ltda. 48 Thanks!