Adnan Rahic

GraphQL

Building extremely fast, low-latency GraphQL APIs with Apollo and Cube.

GraphQL federation example with Apollo Federation and Apollo GraphOS

Use Hasura Remote Schemas to build a low-latency data application.

GraphQL federation with Hasura GraphQL Engine

You're bound to have heard the term GraphQL. Unless you live under a rock. I doubt that though. GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data.

This tutorial will show you a step-by-step guide on how to use a GraphQL API to build Postgres metrics dashboards.

Here's what the end product will look like. You can also check out the [live preview](https://graphql-postgres-metrics-dashboard.netlify.app/).

![frame_chrome_mac_light - 2021-12-16T143822.307.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/8a8507fb-4c19-4069-a178-9bd1036f7e06.png)

GraphQL provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need and nothing more. GraphQL makes it easier to evolve APIs over time and enables powerful developer tools.

The incredible growth in GraphQL's popularity has been noticed by the amazing Cube community. Our community longed for a GraphQL integration, and we listened.

### How the GraphQL API was added to Cube

I'd like to give a huge shout-out to [Luc Vauvillier](https://twitter.com/lvauvillier) who contributed initial support for the GraphQL API and laid out the principal design. Luc is the co-founder at [Gadsme](https://www.gadsme.com/). Check [this out to read more](https://cube.dev/blog/gadsme-runs-on-cube/) about how Gadsme builds awesome stuff with Cube[.](https://cube.dev/blog/gadsme-runs-on-cube/)

We at Cube were thrilled to jump on the problem at hand and build out a GraphQL API. As of the `0.29` release of Cube, you can use the GraphQL API!

### Set up Cube with GraphQL and Postgres

To configure Cube, I first needed to connect a database. I used a demo Postgres database with e-commerce data. The process of connecting a database is identical whether you're using a self-hosted instance of Cube, or Cube Cloud.

I selected PostgreSQL from the list of database options. Cube [supports dozens of databases](https://cube.dev/docs/config/databases), you can select from any mainstream database or data warehouse on the market.

![frame_chrome_mac_light_(37).png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/9ca37d9b-cdc4-4ebd-a41b-31b1ded693e5.png)

Next, I had to add values to connect to my sample PostgreSQL e-commerce database. If you're using a self-hosted Cube instance, you need to [configure a few environment variables](https://cube.dev/docs/config/databases/postgres).

In Cube Cloud, it looks like this.

![frame_chrome_mac_light_(50).png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/f44924c6-b117-4d50-9d78-11625238b4b9.png)

Once the connection is established, I have to generate a data schema. Selecting the `public` table and clicking generate will build a Cube data schema for me to work with.

![frame_chrome_mac_light_(51).png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/ec5c7697-c698-4d8c-938e-8fdeb2193b7f.png)

Now I have access to my Cube cluster. In Cube Cloud you should always enable cluster mode for improved performance if you want to run reliably in production.

This will make sure your resources will autoscale based on the load. There's no additional cost for autoscaling, and the [pricing model for Cube Cloud](https://cube.dev/pricing) is based on throughput.

![frame_chrome_mac_light_(22).png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/00d52f17-d1c7-4768-b692-6fbb78954d33.png)

Next up, I ran a set of queries in the Cube Playground to determine what data I need to make the metrics dashboard.

First of all, I want to run a sample query to list orders by status grouped by day.

![frame_chrome_mac_light - 2021-12-16T143829.494.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/e23359d8-70a7-4a60-b842-4632c8a0680c.png)

Let's open up the Cube GraphiQL interface and run this same query with GraphQL. You can [read more about the GraphQL API in our docs](https://cube.dev/docs/backend/graphql/).

Here's what the GraphQL query looks like for the example above.

![frame_chrome_mac_light - 2021-12-16T143831.756.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/efd2ca84-0c97-4118-8743-96b6066a3830.png)

```graphql
query CubeQuery {
  cube(limit: 10) {
    orders(orderBy: { count: desc }) {
      count
      status
      createdAt {
        day
      }
    }
  }
}
```

Running this query in GraphiQL will return the values just like in the playground. Now we're done with the setup, let's move on to some more complex queries.

### Running Analytical GraphQL Queries

Lets add a `where` clause with a time dimension to the GraphQL query.

```graphql
query CubeQuery {
  cube(
    limit: 10
    where: { orders: { createdAt: { inDateRange: "This year" } } }
  ) {
    orders(orderBy: { count: desc }) {
      count
      status
      createdAt {
        day
      }
    }
  }
}
```

Running this query in GraphiQL will return this result set.

![frame_chrome_mac_light - 2021-12-16T143833.925.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/66776d34-964a-4956-8148-77ba785fec95.png)

I also want to run another query with only completed order statuses.

```graphql
query CubeQuery {
  cube(
    limit: 10
    where: {
      orders: {
        status: { equals: "completed" }
        createdAt: { inDateRange: "This year" }
      }
    }
  ) {
    orders(orderBy: { count: desc }) {
      count
      status
      createdAt {
        day
      }
    }
  }
}
```

![frame_chrome_mac_light - 2021-12-16T143836.210.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/2965b57a-2d0a-4d28-95a9-c8d03e5e9afc.png)

These queries will be perfect for building my metrics dashboard. Next, we need to build an app to display the metrics.

### Visualize Postgres Data with GraphQL

I'll start by building a React app and using Chart.js to display the metrics.

```bash
npx create-react-app dashboard-app
cd dashboard-app
yarn add @apollo/client graphql chart.js react-chartjs-2 apollo-link-http
npm start
```

This will give me a blank React app. I then add the Apollo client and all the required dependencies for building the charts.

Next up, create the file **`src/ApolloClient/client.js`** and insert the following code.

```jsx
import { ApolloClient, ApolloLink, InMemoryCache } from "@apollo/client";
import { HttpLink } from "apollo-link-http";

const uri = 'https://tan-rooster.aws-eu-central-1.cubecloudapp.dev/cubejs-api/graphql'
const httpLink = new HttpLink({ uri });

let appJWTToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJyb2xlIjoiYWRtaW4ifQ.UHnffynBjuE3dcwEUyqldVbN-5QzMT-oiyXqkRbWJOI'
const authMiddleware = new ApolloLink((operation, forward)=> {
  if (appJWTToken) {
    operation.setContext({
      headers: {
        Authorization: `${appJWTToken}`
      }
    });
  } 
  return forward(operation);
});

export const clientWithCubeCloud = new ApolloClient({
  cache: new InMemoryCache(),
  link: authMiddleware.concat(httpLink),
});
```

Make sure to edit your `uri` and `appJWTToken` to use your values from Cube Cloud. You can get those values from the Overview tab by clicking the `How to connect` button.

![frame_chrome_mac_light - 2021-12-16T143824.985.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/b499ee43-e261-4086-a8d4-0e7dfb4ed812.png)

Now you have to make the Apollo client available to the rest of your app. Update your **`src/index.js`** to look as follows.

```jsx
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import reportWebVitals from './reportWebVitals';
import { client } from './ApolloClient/client';
import { ApolloProvider } from '@apollo/client';

ReactDOM.render(
  <ApolloProvider client={clientWithCubeCloud}>
    <App />
  </ApolloProvider>,
  document.getElementById('root')
);

// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();
```

Nice! Now you can move on to create the chart component, and then call the GraphQL query from the chart itself.

Create a folder called `src/Charts` and create a file called `src/Charts/BarChart.js`. Paste this code into it.

```jsx
import React from "react";
import { gql, useQuery } from '@apollo/client';
import { getRandomColor, formatDate } from './Helpers'
import { Bar } from 'react-chartjs-2';
import { Chart as ChartJS, BarElement, Title, CategoryScale, LinearScale, Tooltip, Legend } from 'chart.js';
ChartJS.register(BarElement, Title, CategoryScale, LinearScale, Tooltip, Legend);

const COMPLETEDORDERS = gql`
  query CubeQuery {
    cube(
      limit: 10
      where: {
        orders: {
          status: { equals: "completed" }
          createdAt: { inDateRange: "This year" }
        }
      }
    ) {
      orders(orderBy: { count: desc }) {
        count
        status
        createdAt {
          day
        }
      }
    }
  }
`;

const GenerateChart = () => {
  const { data, loading, error } = useQuery(COMPLETEDORDERS);

  if (loading) {
    return <div>loading</div>;
  }

  if (error) {
    return <div>{error}</div>;
  }

  if (!data) {
    return null;
  }

  const chartData = {
    labels: ['Daily Completed Orders in 2021'],
    datasets: data.cube
      .map(o => o.orders)
      .map(o => {
        return {
          data: [o.count],
          label: formatDate(new Date(o.createdAt.day)),
          backgroundColor: [getRandomColor()],
        };
      })
  }

  return (
    <Bar
      data={chartData}
    />
  );
}

const BarChart = () => {
  return (
    <div style={{ margin: "10px", paddingTop: "65px" }}>
      <h2 style={{ margin: "10px", textAlign: "center" }}>
        Bar Chart
      </h2>
      <div style={{ margin: "10px 100px", padding: "10px 100px" }}>
        <GenerateChart />
      </div>
    </div>
  );
};

export { BarChart };
```

You'll also need to create a file called `src/Charts/Helpers.js`. Paste this code.

```jsx
function getRandomColor() {
  function hexToRgbA(hex){
    let c;
    if(/^#([A-Fa-f0-9]{3}){1,2}$/.test(hex)){
        c= hex.substring(1).split('');
        if(c.length === 3){
            c= [c[0], c[0], c[1], c[1], c[2], c[2]];
        }
        c= '0x'+c.join('');
        return 'rgba('+[(c>>16)&255, (c>>8)&255, c&255].join(',')+',0.5)';
    }
    throw new Error('Bad Hex');
  }

  const letters = '0123456789ABCDEF';
  let color = '#';
  for (let i = 0; i < 6; i++) {
    color += letters[Math.floor(Math.random() * 16)];
  }

  return hexToRgbA(color);
}

function formatDate(date) {
  let d = new Date(date),
      month = '' + (d.getMonth() + 1),
      day = '' + d.getDate(),
      year = d.getFullYear();

  if (month.length < 2) 
      month = '0' + month;
  if (day.length < 2) 
      day = '0' + day;

  return [day, month, year].join('-');
}

export {
  getRandomColor,
  formatDate
};
```

Once you're done with that, you need to create a file called `src/Charts/index.js` to export the chart.

```jsx
export { BarChart } from './BarChart';
```

Lastly, edit the `App.js` and import the chart.

```jsx
import './App.css';
import {
  BarChart,
} from './Charts';

function App() {
  return (
    <div className="App">
      <BarChart />
    </div>
  );
}

export default App;
```

Go back to the browser where the React app is running. You should see this fancy chart pop up!

![frame_chrome_mac_light - 2021-12-16T143822.307.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/8a8507fb-4c19-4069-a178-9bd1036f7e06.png)

As of today, this means you can use Cube's GraphQL API for building any type of metrics dashboard. Alongside the REST API and SQL API, you have an entire toolset at your disposal to choose from.

But I'm not done here yet. Let's add some role-based access control, also called RBAC.

### Add Role-Based Access Control with JWT Tokens

You get [multi-tenancy and RBAC in Cube](https://cube.dev/docs/security/context#top) out of the box. Let's add a security context in the Apollo client to enable RBAC.

Just like with the REST API you can add security and RBAC with JWT tokens. First open up the Env vars tab in your Cube Cloud deployment settings.

![frame_chrome_mac_light - 2021-12-16T143827.204.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/c96be748-74ef-453d-ba38-f0019cd23345.png)

Find the `CUBEJS_API_SECRET` environment variable and copy it. This is the API secret that secures your API. Take the value and create a JWT token with [jwt.io](http://jwt.io) , make sure to add `{ "role": "admin" }` to the payload.

![frame_chrome_mac_light - 2021-12-16T143840.773.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/2b4bf733-fb93-4576-af03-8a28e400337e.png)

You can now copy the JWT token and open up the `src/ApolloClient/client.js` file. Add the token value to the `appJWTToken` variable. Here's what it should look like.

```jsx
import { ApolloClient, ApolloLink, InMemoryCache } from "@apollo/client";
import { HttpLink } from "apollo-link-http";
const uri = 'http://localhost:4000/cubejs-api/graphql'

const httpLink = new HttpLink({ uri });

let appJWTToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJyb2xlIjoiYWRtaW4ifQ.FUewE3jySlmMD3DnOeDaMPBqTqirLQeuRG_--O5oPNw';
const authMiddleware = new ApolloLink((operation, forward)=> {
  if (appJWTToken) {
    operation.setContext({
      headers: {
        Authorization: `${appJWTToken}`
      }
    });
  } 
  return forward(operation);
});

export const clientWithJwt = new ApolloClient({
  cache: new InMemoryCache(),
  link: authMiddleware.concat(httpLink),
});
```

Next, add the security context and RBAC to the `cube.js` file.

```js
// Cube.js configuration options: https://cube.dev/docs/config
module.exports = {
  queryRewrite: (query, { securityContext }) => {
    if (!securityContext.role) {
      throw new Error('No role found in Security Context!');
    }

    if (!securityContext.role === 'admin') {
      throw new Error('You\'re not the Admin!');
    }

    return query;
  },
};
```

Here's what it looks like in Cube Cloud.

![frame_chrome_mac_light - 2021-12-16T143838.484.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/2d108149-e4bf-436f-bf61-ca0396daaa44.png)

You can add any particular logic you might want like RBAC, multi-tenancy, row-level access, and more.

Now, jump back to the dashboard-app. Restart it, and voila, you've added RBAC. The end outcome is this lovely chart showing orders per day for the whole of 2021 that you can only access with the `admin` role. If you remove the `appJWTToken`, your dashboard-app won't be able to fetch data anymore.

If you want to check out the source code in one place, here's the [GitHub repo](https://github.com/cube-js/cube.js/tree/master/examples/graphql-api-metrics-dashboard). And, you can also have a look at the [live preview here](https://graphql-postgres-metrics-dashboard.netlify.app/).

![frame_chrome_mac_light - 2021-12-16T143822.307.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/8a8507fb-4c19-4069-a178-9bd1036f7e06.png)

### Conclusion

In this tutorial, I wanted to show a step-by-step guide on how to use Cube's GraphQL API to build a metrics dashboard with data from a Postgres database.

With Cube Cloud you get a metrics layer that integrates with every major data visualization library including GraphQL compatible tools like [Chart.js](https://www.chartjs.org/) and [react-chartjs-2](https://react-chartjs-2.netlify.app/). On top of all that, it also comes with multi-tenancy support out-of-the-box. Among the different multi-tenancy options, you can enable tenant-based row-level security, role-based access, using multiple database instances, multiple schemas, and more.

If you want to learn more about GraphQL with [Cube](https://cube.dev/) check out [our announcement](https://cube.dev/blog/introducing-cube-graphql) that explains how we added the GraphQL API to Cube.

You can [register for Cube Cloud](https://cube.dev/cloud) right away if you want to have a look!

I'd love to hear your feedback about using GraphQL with Cube Cloud in the Cube Community Slack. [Click here to join](https://slack.cube.dev/)!

Until next time, stay curious, and have fun coding. Also, feel free to [leave Cube a ⭐ on GitHub](https://github.com/cube-js/cube.js) if you liked this article. ✌️

PostgreSQL

GraphQL Postgres Metrics Dashboard with Cube

At Cube, we’ve been excited to watch GraphQL’s growth in popularity and the rise of a rich and mature ecosystem of GraphQL front-end integrations and back-end tools. GraphQL has quickly become the most popular query language for APIs because it provides a complete description of the data in your API—giving clients the power to ask for exactly the data they need and nothing more.

However, I believe that while the GraphQL ecosystem is rich in tools focused on creating transactional (a.k.a. CRUD) GraphQL servers, analytical workloads are still underserved. This is particularly true for workloads designed on top of data warehouses.

For more than a year, a Cube GraphQL API has been the top requested feature from the Cube community. There’s clearly tremendous value for GraphQL users in having a uniform way to access both transactional and analytical APIs, in order to keep the data layer unified and organized. 

**Today, we are excited to announce GraphQL API support in Cube.** With this release, you can use Cube as part of your GraphQL layer to deliver metrics to your application.

We owe tremendous thanks to [Luc Vauvillier](https://twitter.com/lvauvillier), the COO and a co-founder at [Gadsme](https://cube.dev/blog/gadsme-runs-on-cube/), who contributed initial support for this GraphQL API and layed out the principal design:

> “With GraphQL support in Cube we can have a unified typed API for our frontend clients and be able to run code generators”. We built a GraphQL proxy on top of the Cube REST API internally first. Then we started to share our API design with the community, and when we realized that the additional work to make it generic would not be too substantial, we decided to contribute to have it officially supported. At [Gadsme](https://www.gadsme.com/), contributing to open source projects is part of our values and we really enjoyed working on this.”

With this API and [our recently-released SQL API](https://cube.dev/blog/introducing-cube-sql/), Cube can provide analytics data to a wide variety of tools and clients building towards our vision of a universal, headless analytics layer to provide metrics to any application. 

![image2.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/c957b4c8-5ea0-4d61-a610-21749d799953.png)

### Getting Started with the GraphQL API

Cube uses a JSON-based metrics framework to describe data calculations that can be exposed via GraphQL. Once defined, Cube will use these definitions to translate an incoming GraphQL query into a native SQL query to the underlying data storage layer.

Let’s consider the following example of Cube’s metrics framework that can be used to model orders in a hypothetical ecommerce data store:

```js
cube(`Orders`, {
  sql: `SELECT * FROM public.orders`,

  measures: {
    count: {
      type: `count`,
    },
  },

  dimensions: {
    status: {
      sql: `status`,
      type: `string`,
    },

    createdAt: {
      sql: `created_at`,
      type: `time`,
    },
  },
});
```

The main object in Cube’s merics framework is **cube**. Cubes always have the **sql** property. Usually, this points to the SQL table to which this configuration applies, but in more sophisticated use cases, a custom SQL query can be used as a property.

**Measures** are quantitative data—such as the number of units sold, unique visits, profit, and so forth. **Dimensions** are categorical data, such as state, gender, product name, or units of time. (You can learn more about Cube’s data schema [in our docs](https://cube.dev/docs/schema/fundamentals/concepts).)

Once the above definitions are created, we can start querying Cube via the GraphQL API. To get **“Number of orders grouped by status,”** we can use the following query:

```graphql
{
  cube {
    orders {
      count
      status
    }
  }
}
```

Cube will translate the above GraphQL query into a native SQL for your database and execute it. For example, if your database is Postgres, it would be the following SQL query: 


```sql
SELECT
  "orders".status "orders__status",
  count("orders".id) "orders__count"
FROM
  public.orders AS "orders"
GROUP BY
  1
ORDER BY
  2 DESC
LIMIT
  10000
```

Cube users probably are aware that Cube comes with [Developer Playground](https://cube.dev/docs/dev-tools/dev-playground), a useful tool to build and test metrics layer. Now, the Playground includes a built-in GraphiQL to test GraphQL API calls.

![image3.png](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/ab96e549-46c4-42d5-889b-f4edfc530256.png)

To get started with the GraphQL API from scratch, you can follow this [step-by-step guide](https://cube.dev/blog/graphql-postgres-metrics-dashboard-with-cube/). 

We’re excited about finally bringing GraphQL support to Cube, and we hope you are, too!  We’d love to hear your feature requests and use cases; please provide your feedback in our [Slack](http://slack.cube.dev/).

Want to learn more? [Give Cube a free try](https://cubecloud.dev/auth/signup).

Artyom Keydunov

News

Introducing the Cube GraphQL API: Building GraphQL Endpoints for Metrics

[Gadsme](https://www.gadsme.com/) (literally Ads in Game) was founded in 2019 to provide an advertising platform designed for the gaming and e-sports industries. We are engaged in the serving of non-intrusive advertising embedded within scenes of video games.

Gadsme work with major video game studios and serve millions of ads every day. We keep innovating to bring new brand experiences to this area.

![Gadsme stock photo](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/66b39395-d91d-469c-a29d-7af29f21f708.jpeg)

## How Gadsme started using Cube

The Gadsme team first heard of Cube in 2019 after reading a post on Hacker News. At the time, we were focusing more on developing our cross-platform advertising SDK. When it came to building our analytics solution, Cube was the perfect tool to ease iterations around how data insights can be exposed efficiently to our clients. Now, all our dashboards (e.g., for ad requests, impression, fill rate, [eCPM](https://en.wikipedia.org/wiki/Cost_per_mille#Effective_cost_per_mille), etc.) and reporting API use Cube under the hood.

As an AdTech company, Gadsme collects millions of events every day. All those events are stored in BigQuery. With Cube and its built-in pre-aggregations feature, we were able to expose meaningful data with speed and maintain complete control of analytics costs.

## How Cube was implemented at Gadsme and our contributions to the Cube community

Our team used pre-aggregations since day one. We were first using Postgres as an external [pre-aggregations database](https://cube.dev/docs/caching/using-pre-aggregations#pre-aggregations-storage) and now we have been using Cube Store in production since July 2021. This last move to Cube Store brought a noticeable speed-up in the loading times of data and graphs for our client dashboards.

We run Cube on Kubernetes, and we spent some time improving the deployment automation of Cube using Helm Charts. As other members of the community were asking for it, we decided to [make a contribution](https://github.com/cube-js/cube.js/pull/3277), and our Helm Charts are available for everyone in the [example folder of Cube](https://github.com/cube-js/cube.js/tree/master/examples/helm-charts). This was the first major contribution from Gadsme to the Cube project, and contributing back if possible to open source community is a key part of our values.

We also use GraphQL to build all our APIs. We decided not to expose Cube directly and preferred building a GraphQL proxy on top of Cube's [REST API](https://cube.dev/docs/rest-api) (see our architecture diagram below).

![Architecture Diagram](https://cubedev-blog-images.s3.us-east-2.amazonaws.com/63a6a07f-4d68-4925-a0d9-1c1df168e888.png)

In November, we started a new [contribution](https://github.com/cube-js/cube.js/pull/3555) to the Cube project to bring the first official support of a GraphQL API. This new API is available since Cube [v0.28.58](https://github.com/cube-js/cube.js/releases/tag/v0.28.58) and supports the following features:

* API autogeneration based on Cube definitions
* Directives support
* Compatibility with the authorization layer (e.g., [JSON Web Tokens](https://cube.dev/docs/security/context), [queryRewrite](https://cube.dev/docs/config#query-rewrite), [multitenancy](https://cube.dev/docs/product/configuration/advanced/multitenancy), etc.)

We also had the opportunity to discuss our GraphQL contribution during the [November community call](https://www.youtube.com/watch?v=EQ5Wl4yn71c&list=PLtdXl_QTQjpb1dHZCM09qKTsgvgqjSvc9), and we’d welcome your feedback on our contributions not only for GraphQL, but also for Helm Charts. 

## Interested in joining Gadsme's success with Cube?

Explore Cube [examples & tutorials](https://cube.dev/docs/examples) and [get started](https://cube.dev/docs/getting-started) today. To jumpstart your efforts, please join us on [Discourse](https://forum.cube.dev/) & [Slack](https://slack.cube.dev/), follow us on [Twitter](https://twitter.com/thecubejs), and get engaged with the growing Cube community.

APIs

GraphQL

GraphQL federation example with Apollo Federation and Apollo GraphOS

GraphQL federation with Hasura GraphQL Engine

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GraphQL Postgres Metrics Dashboard with Cube

Introducing the Cube GraphQL API: Building GraphQL Endpoints for Metrics

How Gadsme is using Cube for analytics on their in-game advertising platform

D3 Dashboard Tutorial

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React Dashboard: an Ultimate Guide