Exchanger Functions
Exchange from Credits
Exchanges Based Credits tokens to the supported stablecoin tokens at 1:1 ratio and sends to specified recipient
POST
/
contracts
/
exchanger
/
exchangeFromCredits
Exchange Based Credits to the supported stablecoin
curl --request POST \
--url https://mainnet.base.org/contracts/exchanger/exchangeFromCredits \
--header 'Content-Type: application/json' \
--data '
{
"amount": "1000000000000000000",
"recipient": "0x0000000000000000000000000000000000000000"
}
'import requests
url = "https://mainnet.base.org/contracts/exchanger/exchangeFromCredits"
payload = {
"amount": "1000000000000000000",
"recipient": "0x0000000000000000000000000000000000000000"
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
amount: '1000000000000000000',
recipient: '0x0000000000000000000000000000000000000000'
})
};
fetch('https://mainnet.base.org/contracts/exchanger/exchangeFromCredits', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://mainnet.base.org/contracts/exchanger/exchangeFromCredits",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'amount' => '1000000000000000000',
'recipient' => '0x0000000000000000000000000000000000000000'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://mainnet.base.org/contracts/exchanger/exchangeFromCredits"
payload := strings.NewReader("{\n \"amount\": \"1000000000000000000\",\n \"recipient\": \"0x0000000000000000000000000000000000000000\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://mainnet.base.org/contracts/exchanger/exchangeFromCredits")
.header("Content-Type", "application/json")
.body("{\n \"amount\": \"1000000000000000000\",\n \"recipient\": \"0x0000000000000000000000000000000000000000\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://mainnet.base.org/contracts/exchanger/exchangeFromCredits")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"amount\": \"1000000000000000000\",\n \"recipient\": \"0x0000000000000000000000000000000000000000\"\n}"
response = http.request(request)
puts response.read_body{
"transactionHash": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
"blockNumber": 12345678,
"gasUsed": "21000",
"events": [
{
"name": "<string>",
"args": {}
}
]
}This is a smart contract write function. The curl example shown is for illustration. To call this function, use web3 libraries (ethers.js, viem, web3.py) or JSON-RPC directly.
Body
application/json
Response
Exchange successful
Transaction hash
Pattern:
^0x[a-fA-F0-9]{64}$Example:
"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef"
Block number where transaction was mined
Example:
12345678
Gas used for the transaction
Example:
"21000"
Show child attributes
Show child attributes
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⌘I
Exchange Based Credits to the supported stablecoin
curl --request POST \
--url https://mainnet.base.org/contracts/exchanger/exchangeFromCredits \
--header 'Content-Type: application/json' \
--data '
{
"amount": "1000000000000000000",
"recipient": "0x0000000000000000000000000000000000000000"
}
'import requests
url = "https://mainnet.base.org/contracts/exchanger/exchangeFromCredits"
payload = {
"amount": "1000000000000000000",
"recipient": "0x0000000000000000000000000000000000000000"
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
amount: '1000000000000000000',
recipient: '0x0000000000000000000000000000000000000000'
})
};
fetch('https://mainnet.base.org/contracts/exchanger/exchangeFromCredits', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://mainnet.base.org/contracts/exchanger/exchangeFromCredits",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'amount' => '1000000000000000000',
'recipient' => '0x0000000000000000000000000000000000000000'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://mainnet.base.org/contracts/exchanger/exchangeFromCredits"
payload := strings.NewReader("{\n \"amount\": \"1000000000000000000\",\n \"recipient\": \"0x0000000000000000000000000000000000000000\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://mainnet.base.org/contracts/exchanger/exchangeFromCredits")
.header("Content-Type", "application/json")
.body("{\n \"amount\": \"1000000000000000000\",\n \"recipient\": \"0x0000000000000000000000000000000000000000\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://mainnet.base.org/contracts/exchanger/exchangeFromCredits")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"amount\": \"1000000000000000000\",\n \"recipient\": \"0x0000000000000000000000000000000000000000\"\n}"
response = http.request(request)
puts response.read_body{
"transactionHash": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
"blockNumber": 12345678,
"gasUsed": "21000",
"events": [
{
"name": "<string>",
"args": {}
}
]
}