Hypertrace GraphQL

Hypertrace GraphQL service serves the GraphQL API which will be used by Hypertrace UI.

Description

Hypertrace Query Architecture

Hypertrace-UI talks to hypertrace-GraphQL service which serves the GraphQL API which queries data from downstream services. GraphQL services talks to different grpc services to form the response including attribute-service, entity-service, gateway-service and config-service.

Queries

Here are some of the important GraphQL queries:

1. Verify trace exists

curl -s localhost:2020/graphql -H 'Content-Type: application/graphql' -d \
'{
  traces(
    type: API_TRACE
    between: {
      startTime: "2015-01-01T00:00:00.000Z"
      endTime: "2025-01-01T00:00:00.000Z"
    }
    filterBy: [
      {
        operator: EQUALS
        value: "348bae39282251a5"
        type: ID
        idType: API_TRACE
      }
    ]
  ) {
    total
  }
}'

2. Get all service names

curl -s localhost:2020/graphql  -H 'Content-Type: application/graphql' -d \
'{
  entities(
    type: SERVICE 
    between: {
      startTime: "2015-01-01T00:00:00Z"
      endTime: "2025-01-01T00:00:00Z"
    }
  ) {
    results {
      name: attribute(key: "name")
    }
    total
  }
}'

3. Get all backend names

curl -s localhost:2020/graphql -H 'Content-Type: application/graphql' -d \
'{
  entities(
    type: BACKEND
    between: {
      startTime: "2015-01-01T00:00:00Z"
      endTime: "2025-01-01T00:00:00Z"
    }
  ) {
    results {
      name: attribute(key: "name")
    }
    total
  }
}'

4. Get all API names

curl -s localhost:2020/graphql -H 'Content-Type: application/graphql' -d \
'{
  entities(
    type: API
    between: {
      startTime: "2015-01-01T00:00:00Z"
      endTime: "2025-01-01T00:00:00Z"
    }
  ) {
    results {
      name: attribute(key: "name")
    }
    total
  }
}'

5. Get service and backend dependency graph

curl -s localhost:2020/graphql -H 'Content-Type: application/graphql' -d \
'{
  entities(
    type: SERVICE
    between: {
      startTime: "2015-01-01T00:00:00.000Z"
      endTime: "2025-01-01T00:00:00.000Z"
    }
  ) {
    results {
      id
      name: attribute(key: "name")
      outgoingEdges_SERVICE: outgoingEdges(neighborType: SERVICE) {
        results {
          neighbor {
            name: attribute(key: "name")
          }
        }
      }
      outgoingEdges_BACKEND: outgoingEdges(neighborType: BACKEND) {
        results {
          neighbor {
            name: attribute(key: "name")
          }
        }
      }
      incomingEdges_SERVICE: incomingEdges(neighborType: SERVICE) {
        results {
          neighbor {
            name: attribute(key: "name")
          }
        }
      }
    }
  }
}'

Building locally

The Hypertrace GraphQl service uses gradle to compile/install/distribute. Gradle wrapper is already part of the source code. To build Hypertrace GraphQL image, run:

./gradlew dockerBuildImages

Testing

Running unit tests

Run ./gradlew test to execute unit tests.

Testing image

With docker-compose

To test your image using the docker-compose setup follow the steps:

• Commit you changes to a branch say graphql-service-test.
• Go to hypertrace-service and checkout the above branch in the submodule.

cd hypertrace-graphql && git checkout graphql-service-test && cd ..

• Change tag for hypertrace-service from :main to :test in docker-compose file like this.

  hypertrace-service:
    image: hypertrace/hypertrace-service:test
    container_name: hypertrace-service
    ...

• and then run docker-compose up to test the setup.

With Helm setup

Add image repository and tag in values.yaml file here like below and then run ./hypertrace.sh install again and you can test your image!

hypertrace-graphql-service:
  image:
    repository: "hypertrace/hypertrace-graphql-service"
    tagOverride: "test"

Docker Image Source:

• DockerHub > Hypertrace GraphQL