Infrastructure diagram

flowchart TB
    A[Big directory \n of JSON files] -->|aggregate files| B{{data loading \n process}}
    B -->|write to database| C[MongoDB \n database]
    C -->|returns \n data| D[GraphQL server]
    D -->|resolves \n request| C
    D --> |returns \n data| E[Web server \n with d3.js]
    E --> |queries| D

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