covid19-graphql

COVID-19 GraphQL API

API Endpoint: covid19-graphql.herokuapp.com

This GraphQL API provides real-time, updated information on the COVID-19 cases across the world caused by the Coronavirus SARS-CoV-2.

Data is sourced from the Github repository and the OPS dashboard from Johns Hopkins university.

Features

• Provides current, up-to-date statistics per country, subregion and region.

• Provides timelines per country, subregion and region

• Lightning fast due to smart caching and aggregation

• Easy to run locally:

  npx covid19-graphql
  

Example GraphQL queries

Following are some example GraphQL queries:

Latest statistics

{
  latest {
    confirmed
    deceased
    recovered
    lastUpdated
  }
}

Execute this query »

Global timeline since March 2020, excluding China

{
  timeline(excludeCountries: "CN", from: "2020-03-01") {
    date
    confirmed
  }
}

Execute this query »

Latest statistics for each country in Southern Europe:

{
  subRegion(name: "Southern Europe") {
    countries(count: 20) {
      count
      totalCount
      hasNext
      results {
        name
        latest {
          lastUpdated
          deceased
        }
      }
    }
  }
}

Execute this query »

List all countries with confirmed cases, by region and subregion

{
  regions {
    name
    subRegions {
      name
      countries(count: 100, filter: { hasCases: true }) {
        results {
          name
        }
      }
    }
  }
}

Execute this query »

Running it yourself

In order to be in control of your own API endpoint instead of relying on someone else's, you can spin up a COVID19 GraphQL server locally with npx:

npx covid19-graphql

Or install it globally:

npm install -g covid19-graphql

Then you can start the GraphQL server by entering:

covid19-graphql

Environment variables

The following environment variables affect the configuration of the server:

• NODE_ENV: When set to production, will disable tracing, playground and various other debugging settings. It will enable various performance optimizations.
• PORT: Determines the HTTP port on which the server will run (defaults to port 12000)
• ENABLE_TRACING: Overrides the default GraphQL tracing setting (on for development, off for production). Use 1 to turn on 0 to turn off.
• ENABLE_PLAYGROUND: Overrides the default GraphQL playground flag (on for development, off for production). Use 1 to turn on 0 to turn off.

Example:

PORT=8080 covid19-graphql

Development

After cloning this repo, enter npm install to install the dependencies (btw Node >= 10 is required).

The following commands are most useful:

• npm run dev: Starts a development server
• npm run build: Creates a build
• npm start: Starts the server