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README.md

Sangria akka-http Example

An example GraphQL server written with akka-http, circe and sangria.

Deploy

After starting the server with

sbt run

# or, if you want to watch the source code changes
 
sbt ~reStart

you can run queries interactively using graphql-playground by opening http://localhost:8080 in a browser or query the /graphql endpoint directly. The HTTP endpoint follows GraphQL best practices for handling the HTTP requests.

Here are some examples of the queries you can make:

$ curl -X POST localhost:8080/graphql \
  -H "Content-Type:application/json" \
  -d '{"query": "{hero {name, friends {name}}}"}'

this gives back the hero of StarWars Saga together with the list of his friends, which is of course R2-D2:

{
  "data": {
    "hero": {
      "name": "R2-D2",
      "friends": [
        {
          "name": "Luke Skywalker"
        },
        {
          "name": "Han Solo"
        },
        {
          "name": "Leia Organa"
        }
      ]
    }
  }
}

Here is another example, which uses variables:

$ curl -X POST localhost:8080/graphql \
  -H "Content-Type:application/json" \
  -d '{"query": "query Test($humanId: String!){human(id: $humanId) {name, homePlanet, friends {name}}}", "variables": {"humanId": "1000"}}'

The result should be something like this:

{
  "data": {
    "human": {
      "name": "Luke Skywalker",
      "homePlanet": "Tatooine",
      "friends": [
        {
          "name": "Han Solo"
        },
        {
          "name": "Leia Organa"
        },
        {
          "name": "C-3PO"
        },
        {
          "name": "R2-D2"
        }
      ]
    }
  }
}

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An example GraphQL server written with akka-http, circe and sangria

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