curl --request POST \
  --url https://iam.basaltic.sh/v1/assume-role-with-web-identity \
  --header 'Content-Type: application/json' \
  --data '
{
  "web_identity_token": "eyJhbGciOiJSUzI1NiIsImtpZCI6...",
  "role": "crn:iam::production:role/reports",
  "account": "crn:workspace:::account/9f8b1c2d-3e4f-4a5b-8c9d-0e1f2a3b4c5d",
  "session_name": "reports-exporter",
  "duration_seconds": 3600
}
'

import requests

url = "https://iam.basaltic.sh/v1/assume-role-with-web-identity"

payload = {
    "web_identity_token": "eyJhbGciOiJSUzI1NiIsImtpZCI6...",
    "role": "crn:iam::production:role/reports",
    "account": "crn:workspace:::account/9f8b1c2d-3e4f-4a5b-8c9d-0e1f2a3b4c5d",
    "session_name": "reports-exporter",
    "duration_seconds": 3600
}
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({
    web_identity_token: 'eyJhbGciOiJSUzI1NiIsImtpZCI6...',
    role: 'crn:iam::production:role/reports',
    account: 'crn:workspace:::account/9f8b1c2d-3e4f-4a5b-8c9d-0e1f2a3b4c5d',
    session_name: 'reports-exporter',
    duration_seconds: 3600
  })
};

fetch('https://iam.basaltic.sh/v1/assume-role-with-web-identity', 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://iam.basaltic.sh/v1/assume-role-with-web-identity",
  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([
    'web_identity_token' => 'eyJhbGciOiJSUzI1NiIsImtpZCI6...',
    'role' => 'crn:iam::production:role/reports',
    'account' => 'crn:workspace:::account/9f8b1c2d-3e4f-4a5b-8c9d-0e1f2a3b4c5d',
    'session_name' => 'reports-exporter',
    'duration_seconds' => 3600
  ]),
  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://iam.basaltic.sh/v1/assume-role-with-web-identity"

	payload := strings.NewReader("{\n  \"web_identity_token\": \"eyJhbGciOiJSUzI1NiIsImtpZCI6...\",\n  \"role\": \"crn:iam::production:role/reports\",\n  \"account\": \"crn:workspace:::account/9f8b1c2d-3e4f-4a5b-8c9d-0e1f2a3b4c5d\",\n  \"session_name\": \"reports-exporter\",\n  \"duration_seconds\": 3600\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://iam.basaltic.sh/v1/assume-role-with-web-identity")
  .header("Content-Type", "application/json")
  .body("{\n  \"web_identity_token\": \"eyJhbGciOiJSUzI1NiIsImtpZCI6...\",\n  \"role\": \"crn:iam::production:role/reports\",\n  \"account\": \"crn:workspace:::account/9f8b1c2d-3e4f-4a5b-8c9d-0e1f2a3b4c5d\",\n  \"session_name\": \"reports-exporter\",\n  \"duration_seconds\": 3600\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://iam.basaltic.sh/v1/assume-role-with-web-identity")

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  \"web_identity_token\": \"eyJhbGciOiJSUzI1NiIsImtpZCI6...\",\n  \"role\": \"crn:iam::production:role/reports\",\n  \"account\": \"crn:workspace:::account/9f8b1c2d-3e4f-4a5b-8c9d-0e1f2a3b4c5d\",\n  \"session_name\": \"reports-exporter\",\n  \"duration_seconds\": 3600\n}"

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

{
  "access_token": "eyJhbGciOiJFUzI1NiIsInR5cCI6ImF0K2p3dCIsImtpZCI6Ii4uLiJ9...",
  "token_type": "Bearer",
  "expires_in": 3600,
  "access_key_id": "AKIA...",
  "secret_access_key": "wJalrXUtnFEMI...",
  "session_token": "FwoGZXIvYXdzE...",
  "expiration": "2026-01-15T09:30:00Z",
  "account_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "account_handle": "<string>",
  "role_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}

{
  "error": {
    "code": "INVALID_INPUT",
    "message": "Invalid request parameters",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "invalid web identity token",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "IAM_CANNOT_ASSUME_ROLE",
    "message": "You are not authorized to assume this role",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "Resource not found",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Too many requests, please try again later",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "An internal error occurred",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "NOT_IMPLEMENTED",
    "message": "web identity federation is not configured",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "The service is temporarily unavailable. Please try again later.",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}