curl --request POST \
  --url https://tx-builder-testnet.avantisfi.com/v2/intents/increase \
  --header 'Content-Type: application/json' \
  --data '
{
  "trader": "<string>",
  "tradeIndex": 1,
  "additionalCollateralUsdc": "<string>",
  "leverage": "<string>",
  "pairIndex": 1,
  "pair": "<string>",
  "nonce": "<string>",
  "deadlineMs": "<string>",
  "openPrice": "<string>",
  "slippagePercent": "1"
}
'

import requests

url = "https://tx-builder-testnet.avantisfi.com/v2/intents/increase"

payload = {
    "trader": "<string>",
    "tradeIndex": 1,
    "additionalCollateralUsdc": "<string>",
    "leverage": "<string>",
    "pairIndex": 1,
    "pair": "<string>",
    "nonce": "<string>",
    "deadlineMs": "<string>",
    "openPrice": "<string>",
    "slippagePercent": "1"
}
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({
    trader: '<string>',
    tradeIndex: 1,
    additionalCollateralUsdc: '<string>',
    leverage: '<string>',
    pairIndex: 1,
    pair: '<string>',
    nonce: '<string>',
    deadlineMs: '<string>',
    openPrice: '<string>',
    slippagePercent: '1'
  })
};

fetch('https://tx-builder-testnet.avantisfi.com/v2/intents/increase', 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://tx-builder-testnet.avantisfi.com/v2/intents/increase",
  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([
    'trader' => '<string>',
    'tradeIndex' => 1,
    'additionalCollateralUsdc' => '<string>',
    'leverage' => '<string>',
    'pairIndex' => 1,
    'pair' => '<string>',
    'nonce' => '<string>',
    'deadlineMs' => '<string>',
    'openPrice' => '<string>',
    'slippagePercent' => '1'
  ]),
  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://tx-builder-testnet.avantisfi.com/v2/intents/increase"

	payload := strings.NewReader("{\n  \"trader\": \"<string>\",\n  \"tradeIndex\": 1,\n  \"additionalCollateralUsdc\": \"<string>\",\n  \"leverage\": \"<string>\",\n  \"pairIndex\": 1,\n  \"pair\": \"<string>\",\n  \"nonce\": \"<string>\",\n  \"deadlineMs\": \"<string>\",\n  \"openPrice\": \"<string>\",\n  \"slippagePercent\": \"1\"\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://tx-builder-testnet.avantisfi.com/v2/intents/increase")
  .header("Content-Type", "application/json")
  .body("{\n  \"trader\": \"<string>\",\n  \"tradeIndex\": 1,\n  \"additionalCollateralUsdc\": \"<string>\",\n  \"leverage\": \"<string>\",\n  \"pairIndex\": 1,\n  \"pair\": \"<string>\",\n  \"nonce\": \"<string>\",\n  \"deadlineMs\": \"<string>\",\n  \"openPrice\": \"<string>\",\n  \"slippagePercent\": \"1\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://tx-builder-testnet.avantisfi.com/v2/intents/increase")

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  \"trader\": \"<string>\",\n  \"tradeIndex\": 1,\n  \"additionalCollateralUsdc\": \"<string>\",\n  \"leverage\": \"<string>\",\n  \"pairIndex\": 1,\n  \"pair\": \"<string>\",\n  \"nonce\": \"<string>\",\n  \"deadlineMs\": \"<string>\",\n  \"openPrice\": \"<string>\",\n  \"slippagePercent\": \"1\"\n}"

response = http.request(request)
puts response.read_body

{
  "ok": true,
  "data": {
    "intent": "IncreasePositionSizeReq",
    "domain": {
      "name": "AvantisTrading",
      "version": "1",
      "chainId": 123,
      "verifyingContract": "0x0000000000000000000000000000000000000000"
    },
    "primaryType": "IncreasePositionSizeReq",
    "types": {},
    "message": {
      "_updateInfo": {
        "trader": "0x0000000000000000000000000000000000000000",
        "pairIndex": "<string>",
        "index": "<string>",
        "openPrice": "<string>",
        "initialPosToken": "<string>",
        "leverage": "<string>"
      },
      "_slippageP": "<string>",
      "_deadline": "<string>",
      "_nonce": "<string>"
    },
    "digest": "<string>",
    "encodedIntent": "<string>",
    "meta": {
      "pair": "<string>",
      "pairIndex": 123,
      "openPrice": 123
    }
  }
}

{
  "ok": false,
  "error": {
    "code": "BAD_REQUEST",
    "message": "<string>",
    "details": "<unknown>"
  }
}