eth_estimateGas RPC Method

Parameters

transaction

object

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from

string

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to

string

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gas

integer

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gasPrice

integer

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value

integer

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data

string

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blockNumber

string

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Returns

quantity

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Request

1
curl -X POST "https://docs-demo.xdai.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "eth_estimateGas",
6
  "params": [
7
    {
8
      "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
9
      "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
10
      "value": "0x186a0"
11
    }
12
  ],
13
  "id": 1
14
}'

1
curl -X POST "https://docs-demo.xdai.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "eth_estimateGas",
6
  "params": [
7
    {
8
      "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
9
      "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
10
      "value": "0x186a0"
11
    }
12
  ],
13
  "id": 1
14
}'

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.xdai.quiknode.pro/");
5
    const response = await provider.send("eth_estimateGas", [
6
    {
7
        "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
8
        "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
9
        "value": "0x186a0"
10
    }
11
]);
12
    console.log(response);
13
}
14

15
main();

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.xdai.quiknode.pro/");
5
    const response = await provider.send("eth_estimateGas", [
6
    {
7
        "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
8
        "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
9
        "value": "0x186a0"
10
    }
11
]);
12
    console.log(response);
13
}
14

15
main();

1
require 'eth'
2

3
client = Eth::Client.create 'https://docs-demo.xdai.quiknode.pro/'
4
payload = {
5
    "jsonrpc": "2.0",
6
    "method": "eth_estimateGas",
7
    "params": [
8
        {
9
            "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
10
            "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
11
            "value": "0x186a0"
12
        }
13
    ],
14
    "id": "1"
15
}
16

17
response = client.send(payload.to_json)
18
puts response

1
require 'eth'
2

3
client = Eth::Client.create 'https://docs-demo.xdai.quiknode.pro/'
4
payload = {
5
    "jsonrpc": "2.0",
6
    "method": "eth_estimateGas",
7
    "params": [
8
        {
9
            "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
10
            "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
11
            "value": "0x186a0"
12
        }
13
    ],
14
    "id": "1"
15
}
16

17
response = client.send(payload.to_json)
18
puts response

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.xdai.quiknode.pro/'))
3
response = w3.provider.make_request("eth_estimateGas", [{"from":"0x81bff64C191b5568e3b77EC777fadF3d79af1881","to":"0xC0Bc1f1820Be785AFca0e620675197e5093680d8","value":"0x186a0"}])
4
print(response)

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.xdai.quiknode.pro/'))
3
response = w3.provider.make_request("eth_estimateGas", [{"from":"0x81bff64C191b5568e3b77EC777fadF3d79af1881","to":"0xC0Bc1f1820Be785AFca0e620675197e5093680d8","value":"0x186a0"}])
4
print(response)

1
import { createPublicClient, http } from 'viem'
2

3
async function main() {
4
    const client = createPublicClient({
5
        transport: http('https://docs-demo.xdai.quiknode.pro/')
6
    })
7

8
    const result = await client.request({
9
        method: 'eth_estimateGas',
10
        params: [
11
          {
12
            "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
13
            "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
14
            "value": "0x186a0"
15
          }
16
        ]
17
    })
18

19
    console.log(result)
20
}
21

22
main()

1
import { createPublicClient, http } from 'viem'
2

3
async function main() {
4
    const client = createPublicClient({
5
        transport: http('https://docs-demo.xdai.quiknode.pro/')
6
    })
7

8
    const result = await client.request({
9
        method: 'eth_estimateGas',
10
        params: [
11
          {
12
            "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
13
            "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
14
            "value": "0x186a0"
15
          }
16
        ]
17
    })
18

19
    console.log(result)
20
}
21

22
main()

1
import { Core } from '@quicknode/sdk'
2

3
const core = new Core({
4
  endpointUrl: "https://docs-demo.xdai.quiknode.pro/",
5
})
6

7
core.client
8
  .request({
9
    method: 'eth_estimateGas',
10
    params: [{"from":"0x81bff64C191b5568e3b77EC777fadF3d79af1881","to":"0xC0Bc1f1820Be785AFca0e620675197e5093680d8","value":"0x186a0"}]
11
  })
12
  .then(res => console.log(res))

1
import { Core } from '@quicknode/sdk'
2

3
const core = new Core({
4
  endpointUrl: "https://docs-demo.xdai.quiknode.pro/",
5
})
6

7
core.client
8
  .request({
9
    method: 'eth_estimateGas',
10
    params: [{"from":"0x81bff64C191b5568e3b77EC777fadF3d79af1881","to":"0xC0Bc1f1820Be785AFca0e620675197e5093680d8","value":"0x186a0"}]
11
  })
12
  .then(res => console.log(res))

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'eth_estimateGas',
4
    params: [{"from":"0x81bff64C191b5568e3b77EC777fadF3d79af1881","to":"0xC0Bc1f1820Be785AFca0e620675197e5093680d8","value":"0x186a0"}],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.xdai.quiknode.pro/', {
10
        method: 'POST',
11
        headers: {'Content-Type': 'application/json'},
12
        body: JSON.stringify(body)
13
    })
14
    const data = await response.json()
15
    console.log(data)
16
}
17

18
main()

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'eth_estimateGas',
4
    params: [{"from":"0x81bff64C191b5568e3b77EC777fadF3d79af1881","to":"0xC0Bc1f1820Be785AFca0e620675197e5093680d8","value":"0x186a0"}],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.xdai.quiknode.pro/', {
10
        method: 'POST',
11
        headers: {'Content-Type': 'application/json'},
12
        body: JSON.stringify(body)
13
    })
14
    const data = await response.json()
15
    console.log(data)
16
}
17

18
main()

1
import requests
2
import json
3

4
url = "https://docs-demo.xdai.quiknode.pro/"
5

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "eth_estimateGas",
9
  "params": [
10
    {
11
      "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
12
      "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
13
      "value": "0x186a0"
14
    }
15
  ],
16
  "id": 1
17
})
18
headers = {
19
  'Content-Type': 'application/json'
20
}
21

22
response = requests.request("POST", url, headers=headers, data=payload)
23

24
print(response.text)

1
import requests
2
import json
3

4
url = "https://docs-demo.xdai.quiknode.pro/"
5

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "eth_estimateGas",
9
  "params": [
10
    {
11
      "from": "0x81bff64C191b5568e3b77EC777fadF3d79af1881",
12
      "to": "0xC0Bc1f1820Be785AFca0e620675197e5093680d8",
13
      "value": "0x186a0"
14
    }
15
  ],
16
  "id": 1
17
})
18
headers = {
19
  'Content-Type': 'application/json'
20
}
21

22
response = requests.request("POST", url, headers=headers, data=payload)
23

24
print(response.text)

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

5
uri = URI("https://docs-demo.xdai.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "eth_estimateGas",
11
  params: [{"from":"0x81bff64C191b5568e3b77EC777fadF3d79af1881","to":"0xC0Bc1f1820Be785AFca0e620675197e5093680d8","value":"0x186a0"}]
12
}
13

14
request = Net::HTTP::Post.new(uri)
15
request["Content-Type"] = "application/json"
16
request.body = JSON.generate(payload)
17

18
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
19
  http.request(request)
20
end
21

22
puts response.body

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

5
uri = URI("https://docs-demo.xdai.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "eth_estimateGas",
11
  params: [{"from":"0x81bff64C191b5568e3b77EC777fadF3d79af1881","to":"0xC0Bc1f1820Be785AFca0e620675197e5093680d8","value":"0x186a0"}]
12
}
13

14
request = Net::HTTP::Post.new(uri)
15
request["Content-Type"] = "application/json"
16
request.body = JSON.generate(payload)
17

18
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
19
  http.request(request)
20
end
21

22
puts response.body

Response

1
{
2
  "jsonrpc": "2.0",
3
  "result": "0x52e0",
4
  "id": 1
5
}

1
{
2
  "jsonrpc": "2.0",
3
  "result": "0x52e0",
4
  "id": 1
5
}

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