Parameters

This method does not accept any parameters

Returns

data

object

The data object which contains the following fields:

health

boolean

A boolean value indicating the health status of the node

extensions

object

GraphQL response metadata returned by the Fuel node.

current_consensus_parameters_version

integer

The current consensus parameters version

current_fuel_block_height

integer

The current Fuel block height

current_stf_version

integer

The current STF version

Request

1
curl --location 'https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql' \
2
--header 'Accept: application/json' \
3
--header 'Content-Type: application/json' \
4
--data '{
5
  "query": "{ health }"
6
}'

1
curl --location 'https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql' \
2
--header 'Accept: application/json' \
3
--header 'Content-Type: application/json' \
4
--data '{
5
  "query": "{ health }"
6
}'

1
const HEALTH_QUERY = `
2
  query {
3
    health
4
  }
5
`;
6

7
const fetchNodeHealth = async (): Promise<void> => {
8
  try {
9
    const response = await fetch('https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql', {
10
      method: 'POST',
11
      headers: {
12
        'Accept': 'application/json',
13
        'Content-Type': 'application/json',
14
      },
15
      body: JSON.stringify({
16
        query: HEALTH_QUERY,
17
      }),
18
    });
19

20
    if (!response.ok) {
21
      throw new Error(`HTTP error! status: ${response.status}`);
22
    }
23

24
    const result = await response.json();
25
    console.log('Node Health:', result.data.health);
26
  } catch (error) {
27
    console.error('Error fetching node health:', error);
28
  }
29
};
30

31
fetchNodeHealth();
32

1
const HEALTH_QUERY = `
2
  query {
3
    health
4
  }
5
`;
6

7
const fetchNodeHealth = async (): Promise<void> => {
8
  try {
9
    const response = await fetch('https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql', {
10
      method: 'POST',
11
      headers: {
12
        'Accept': 'application/json',
13
        'Content-Type': 'application/json',
14
      },
15
      body: JSON.stringify({
16
        query: HEALTH_QUERY,
17
      }),
18
    });
19

20
    if (!response.ok) {
21
      throw new Error(`HTTP error! status: ${response.status}`);
22
    }
23

24
    const result = await response.json();
25
    console.log('Node Health:', result.data.health);
26
  } catch (error) {
27
    console.error('Error fetching node health:', error);
28
  }
29
};
30

31
fetchNodeHealth();
32

1
const myHeaders = new Headers();
2
myHeaders.append("Accept", "application/json");
3
myHeaders.append("Content-Type", "application/json");
4

5
const raw = JSON.stringify({
6
  "query": "{ health }"
7
});
8

9
const requestOptions = {
10
  method: "POST",
11
  headers: myHeaders,
12
  body: raw,
13
  redirect: "follow"
14
};
15

16
fetch("https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql", requestOptions)
17
  .then((response) => response.text())
18
  .then((result) => console.log(result))
19
  .catch((error) => console.error(error));

1
const myHeaders = new Headers();
2
myHeaders.append("Accept", "application/json");
3
myHeaders.append("Content-Type", "application/json");
4

5
const raw = JSON.stringify({
6
  "query": "{ health }"
7
});
8

9
const requestOptions = {
10
  method: "POST",
11
  headers: myHeaders,
12
  body: raw,
13
  redirect: "follow"
14
};
15

16
fetch("https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql", requestOptions)
17
  .then((response) => response.text())
18
  .then((result) => console.log(result))
19
  .catch((error) => console.error(error));

1
const { ApolloClient, InMemoryCache, gql } = require('@apollo/client/core');
2
const fetch = require('cross-fetch');
3

4
const client = new ApolloClient({
5
  uri: 'https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql',
6
  cache: new InMemoryCache(),
7
  fetch: fetch,
8
  headers: {
9
    'Accept': 'application/json',
10
    'Content-Type': 'application/json'
11
  }
12
});
13

14
const HEALTH_QUERY = gql`
15
  {
16
    health
17
  }
18
`;
19

20
client.query({
21
  query: HEALTH_QUERY
22
})
23
.then(result => {
24
  console.log('Node Health Status:', result.data.health);
25
})
26
.catch(error => console.error('Error:', error));

1
const { ApolloClient, InMemoryCache, gql } = require('@apollo/client/core');
2
const fetch = require('cross-fetch');
3

4
const client = new ApolloClient({
5
  uri: 'https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql',
6
  cache: new InMemoryCache(),
7
  fetch: fetch,
8
  headers: {
9
    'Accept': 'application/json',
10
    'Content-Type': 'application/json'
11
  }
12
});
13

14
const HEALTH_QUERY = gql`
15
  {
16
    health
17
  }
18
`;
19

20
client.query({
21
  query: HEALTH_QUERY
22
})
23
.then(result => {
24
  console.log('Node Health Status:', result.data.health);
25
})
26
.catch(error => console.error('Error:', error));

1
import requests
2
import json
3

4
url = "https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql"
5

6
payload = json.dumps({
7
  "query": "{ health }"
8
})
9
headers = {
10
  'Accept': 'application/json',
11
  'Content-Type': 'application/json'
12
}
13

14
response = requests.request("POST", url, headers=headers, data=payload)
15

16
print(response.text)
17

1
import requests
2
import json
3

4
url = "https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql"
5

6
payload = json.dumps({
7
  "query": "{ health }"
8
})
9
headers = {
10
  'Accept': 'application/json',
11
  'Content-Type': 'application/json'
12
}
13

14
response = requests.request("POST", url, headers=headers, data=payload)
15

16
print(response.text)
17

1
require "uri"
2
require "json"
3
require "net/http"
4

5
url = URI("https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql")
6

7
https = Net::HTTP.new(url.host, url.port)
8
https.use_ssl = true
9

10
request = Net::HTTP::Post.new(url)
11
request["Accept"] = "application/json"
12
request["Content-Type"] = "application/json"
13
request.body = JSON.dump({
14
  "query": "{ health }"
15
})
16

17
response = https.request(request)
18
puts response.read_body
19

1
require "uri"
2
require "json"
3
require "net/http"
4

5
url = URI("https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql")
6

7
https = Net::HTTP.new(url.host, url.port)
8
https.use_ssl = true
9

10
request = Net::HTTP::Post.new(url)
11
request["Accept"] = "application/json"
12
request["Content-Type"] = "application/json"
13
request.body = JSON.dump({
14
  "query": "{ health }"
15
})
16

17
response = https.request(request)
18
puts response.read_body
19

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