Parameters

height

string

REQUIRED

The height of the block

Returns

data

object

The data object which contains the following fields:

block

object

The object that holds information about the queried block

id

string

The unique identifier (hash) of the block.

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": "query Block($height: U64) { block(height: $height) { id } }",
6
  "variables": {
7
    "height": "3412"
8
  }
9
}'

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": "query Block($height: U64) { block(height: $height) { id } }",
6
  "variables": {
7
    "height": "3412"
8
  }
9
}'

1
const BLOCK_QUERY = `
2
  query Block($height: U64) {
3
    block(height: $height) {
4
      id
5
    }
6
  }
7
`;
8

9
const QUERY_VARIABLES = {
10
  height: '3412',
11
};
12

13
const fetchBlockByHeight = async () => {
14
  try {
15
    const response = await fetch('https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql', {
16
      method: 'POST',
17
      headers: {
18
        'Accept': 'application/json',
19
        'Content-Type': 'application/json',
20
      },
21
      body: JSON.stringify({
22
        query: BLOCK_QUERY,
23
        variables: QUERY_VARIABLES,
24
      }),
25
    });
26

27
    if (!response.ok) {
28
      throw new Error(`HTTP error! status: ${response.status}`);
29
    }
30

31
    const result = await response.json();
32
    console.log('Block ID:', result.data.block.id);
33
  } catch (error) {
34
    console.error('Error fetching block:', error);
35
  }
36
};
37

38
fetchBlockByHeight();
39

1
const BLOCK_QUERY = `
2
  query Block($height: U64) {
3
    block(height: $height) {
4
      id
5
    }
6
  }
7
`;
8

9
const QUERY_VARIABLES = {
10
  height: '3412',
11
};
12

13
const fetchBlockByHeight = async () => {
14
  try {
15
    const response = await fetch('https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql', {
16
      method: 'POST',
17
      headers: {
18
        'Accept': 'application/json',
19
        'Content-Type': 'application/json',
20
      },
21
      body: JSON.stringify({
22
        query: BLOCK_QUERY,
23
        variables: QUERY_VARIABLES,
24
      }),
25
    });
26

27
    if (!response.ok) {
28
      throw new Error(`HTTP error! status: ${response.status}`);
29
    }
30

31
    const result = await response.json();
32
    console.log('Block ID:', result.data.block.id);
33
  } catch (error) {
34
    console.error('Error fetching block:', error);
35
  }
36
};
37

38
fetchBlockByHeight();
39

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": "query Block($height: U64) { block(height: $height) { id } }",
7
  "variables": {
8
    "height": "3412"
9
  }
10
});
11

12
const requestOptions = {
13
  method: "POST",
14
  headers: myHeaders,
15
  body: raw,
16
  redirect: "follow"
17
};
18

19
fetch("https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql", requestOptions)
20
  .then((response) => response.text())
21
  .then((result) => console.log(result))
22
  .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": "query Block($height: U64) { block(height: $height) { id } }",
7
  "variables": {
8
    "height": "3412"
9
  }
10
});
11

12
const requestOptions = {
13
  method: "POST",
14
  headers: myHeaders,
15
  body: raw,
16
  redirect: "follow"
17
};
18

19
fetch("https://docs-demo.fuel-mainnet.quiknode.pro/v1/graphql", requestOptions)
20
  .then((response) => response.text())
21
  .then((result) => console.log(result))
22
  .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 BLOCK_BY_HEIGHT_QUERY = gql`
15
  query Block($height: U64) {
16
    block(height: $height) {
17
      id
18
    }
19
  }
20
`;
21

22
const variables = {
23
  height: "3412"
24
};
25

26
client.query({
27
  query: BLOCK_BY_HEIGHT_QUERY,
28
  variables: variables
29
})
30
.then(result => {
31
  console.log(JSON.stringify(result.data, null, 2));
32
})
33
.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 BLOCK_BY_HEIGHT_QUERY = gql`
15
  query Block($height: U64) {
16
    block(height: $height) {
17
      id
18
    }
19
  }
20
`;
21

22
const variables = {
23
  height: "3412"
24
};
25

26
client.query({
27
  query: BLOCK_BY_HEIGHT_QUERY,
28
  variables: variables
29
})
30
.then(result => {
31
  console.log(JSON.stringify(result.data, null, 2));
32
})
33
.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": "query Block($height: U64) { block(height: $height) { id } }",
8
  "variables": {
9
    "height": "3412"
10
  }
11
})
12
headers = {
13
  'Accept': 'application/json',
14
  'Content-Type': 'application/json'
15
}
16

17
response = requests.request("POST", url, headers=headers, data=payload)
18

19
print(response.text)
20

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": "query Block($height: U64) { block(height: $height) { id } }",
8
  "variables": {
9
    "height": "3412"
10
  }
11
})
12
headers = {
13
  'Accept': 'application/json',
14
  'Content-Type': 'application/json'
15
}
16

17
response = requests.request("POST", url, headers=headers, data=payload)
18

19
print(response.text)
20

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": "query Block(\$height: U64) { block(height: \$height) { id } }",
15
  "variables": {
16
    "height": "3412"
17
  }
18
})
19

20
response = https.request(request)
21
puts response.read_body
22

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": "query Block(\$height: U64) { block(height: \$height) { id } }",
15
  "variables": {
16
    "height": "3412"
17
  }
18
})
19

20
response = https.request(request)
21
puts response.read_body
22

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