Multi-Language Code Example Generator
Compose an API request — method, URL, query params, headers and a JSON body — and generate production-ready integration snippets in 14 languages: JavaScript, TypeScript, Python, Java, C#, PHP, Ruby, Go, Rust, Swift, Kotlin, Dart, cURL and PowerShell. Authentication, payloads and response handling adapt to each language automatically — and nothing is ever sent: it all runs in your browser.
Add Authorization: Bearer … or an API-key header here — it propagates to every language.
// Create User
// Create a new user account
async function makeRequest() {
try {
// Build URL with query parameters
const params = new URLSearchParams({
'expand': 'profile',
});
const url = 'https://api.example.com/v1/users?' + params.toString();
const options = {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Accept': 'application/json',
'Authorization': 'Bearer sk_live_4eC39HqLyjWDarjtT1zdp7dc',
},
body: JSON.stringify({
"name": "John Doe",
"email": "john@example.com",
"username": "johndoe"
}),
};
const response = await fetch(url, options);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
console.log('Success:', data);
return data;
} catch (error) {
console.error('Error:', error);
throw error;
}
}
// Call the function
makeRequest();JavaScript · 3 headers · body included · nothing is sent — copy and run it yourself.
The same request in three more languages
# Create User
# Create a new user account
import requests
import json
def make_request():
"""Make API request and return response data"""
url = "https://api.example.com/v1/users"
# Query parameters
params = {
"expand": "profile",
}
# Headers
headers = {
"Content-Type": "application/json",
"Accept": "application/json",
"Authorization": "Bearer sk_live_4eC39HqLyjWDarjtT1zdp7dc",
}
# Request body
data = {
"name": "John Doe",
"email": "john@example.com",
"username": "johndoe"
}
try:
# Make the request
response = requests.post(
url,
params=params,
headers=headers,
json=data,
)
# Raise an exception for bad status codes
response.raise_for_status()
# Parse JSON response
result = response.json()
print("Success:", result)
return result
except requests.exceptions.RequestException as e:
print(f"Error: {e}")
raise
# Execute the request
if __name__ == "__main__":
make_request()# Create User
# Create a new user account
curl -X POST \
'https://api.example.com/v1/users?expand=profile' \
-H 'Content-Type: application/json' \
-H 'Accept: application/json' \
-H 'Authorization: Bearer sk_live_4eC39HqLyjWDarjtT1zdp7dc' \
-d '{"name":"John Doe","email":"john@example.com","username":"johndoe"}'
# Pretty print JSON response (requires jq)
curl -X POST \
'https://api.example.com/v1/users?expand=profile' \
-H 'Content-Type: application/json' \
-H 'Accept: application/json' \
-H 'Authorization: Bearer sk_live_4eC39HqLyjWDarjtT1zdp7dc' \
-d '{"name":"John Doe","email":"john@example.com","username":"johndoe"}' \
| jq '.'
# Save response to file
curl -X POST \
'https://api.example.com/v1/users?expand=profile' \
-H 'Content-Type: application/json' \
-H 'Accept: application/json' \
-H 'Authorization: Bearer sk_live_4eC39HqLyjWDarjtT1zdp7dc' \
-d '{"name":"John Doe","email":"john@example.com","username":"johndoe"}' \
-o response.json
# Show response headers
curl -X POST \
'https://api.example.com/v1/users?expand=profile' \
-H 'Content-Type: application/json' \
-H 'Accept: application/json' \
-H 'Authorization: Bearer sk_live_4eC39HqLyjWDarjtT1zdp7dc' \
-d '{"name":"John Doe","email":"john@example.com","username":"johndoe"}' \
-i// Create User
// Create a new user account
package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"time"
)
func main() {
if err := makeRequest(); err != nil {
fmt.Printf("Error: %v\n", err)
}
}
func makeRequest() error {
// Build URL with query parameters
baseURL := "https://api.example.com/v1/users"
params := url.Values{}
params.Add("expand", "profile")
fullURL := baseURL + "?" + params.Encode()
// Prepare request body
requestBody := map[string]interface{}{
"name": "John Doe",
"email": "john@example.com",
"username": "johndoe",
}
jsonBody, err := json.Marshal(requestBody)
if err != nil {
return fmt.Errorf("failed to marshal request body: %w", err)
}
// Create HTTP request
req, err := http.NewRequest("POST", fullURL, bytes.NewBuffer(jsonBody))
if err != nil {
return fmt.Errorf("failed to create request: %w", err)
}
// Set headers
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Accept", "application/json")
req.Header.Set("Authorization", "Bearer sk_live_4eC39HqLyjWDarjtT1zdp7dc")
// Create HTTP client with timeout
client := &http.Client{
Timeout: 30 * time.Second,
}
// Send request
resp, err := client.Do(req)
if err != nil {
return fmt.Errorf("request failed: %w", err)
}
defer resp.Body.Close()
// Read response body
body, err := io.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("failed to read response: %w", err)
}
// Check status code
if resp.StatusCode >= 200 && resp.StatusCode < 300 {
fmt.Printf("Success: %d\n", resp.StatusCode)
// Parse JSON response
var result map[string]interface{}
if err := json.Unmarshal(body, &result); err != nil {
fmt.Printf("Response: %s\n", string(body))
} else {
prettyJSON, _ := json.MarshalIndent(result, "", " ")
fmt.Printf("Response: %s\n", string(prettyJSON))
}
} else {
return fmt.Errorf("HTTP error %d: %s", resp.StatusCode, string(body))
}
return nil
}One request, fourteen idiomatic clients
Every API integration starts the same way: you have an endpoint, a method, some headers — usually including an Authorization token — a handful of query parameters and, for writes, a JSON body. Translating that single mental model into working code is mechanical but error-prone, and it gets multiplied by every language your team touches. A header capitalised differently in the cURL command than in the Python script, a query parameter forgotten in the Go version, a body that JSON-stringifies cleanly in JavaScript but is hand-built field-by-field (and subtly wrong) in Kotlin — these are the small, repetitive mistakes that turn a five-minute integration into an afternoon of debugging.
This generator removes the transcription entirely. You describe the request once and it emits fourteen idiomatic clients, each adapting the same canonical request to that language's conventions: Python reaches for requests with its params= and json= arguments, Go marshals a map[string]interface, Rust chains .query() and .json() on a reqwest builder, Swift assembles URLComponents and a URLSession task, and the auth header lands in the right place in all of them. Because authentication is just a header, adding it once to the headers list propagates it everywhere — there is no per-language auth step to get wrong.
The output is deliberately production-shaped rather than a toy one-liner: every snippet checks the response status, parses JSON, and handles failures with the language's native mechanism — try/except, Result and ?, error returns, rescue. Languages that need third-party packages include the dependency lines as comments, so you know exactly what to add to Cargo.toml, build.gradle or pubspec.yaml. And nothing is ever sent — the tool generates code locally and never makes the call itself, so your real keys and internal endpoints stay on your machine while you draft.
Pair this with the rest of the API suite: compose and tweak the underlying request in the API request builder, turn an existing terminal command into structured docs with the cURL-to-docs converter, and generate a browsable reference for a whole API with the OpenAPI / Swagger documentation generator.
Trusted by Developers
“I maintain docs for an API used from web, mobile and CLI, and this generates all fourteen language samples from one request definition — identical auth header, identical query string everywhere. I paste them straight into our reference pages. The Swift and Kotlin output being genuinely idiomatic, not transliterated JavaScript, is what sold me.”
“Composing the request once and flipping between Python requests, Go net/http and a curl command is exactly my debugging loop — I confirm the curl works in the terminal, then grab the Go snippet for the service. The body adapting to a map[string]interface{} for Go and a serde_json json!() for Rust saves me real transcription time.”
“The URLSession Swift output and the OkHttp Kotlin output both compile with minimal edits, and including the build.gradle and pubspec dependency lines as comments is a thoughtful touch. I'd like an async/await Kotlin coroutine variant alongside the callback one, but the generated callback version is correct and complete.”
“Because it sends nothing and runs in the browser, I can paste a client's real production key and internal endpoint, generate the C# and PHP snippets they need, and hand them over without a single byte leaving my laptop. The error handling and response parsing being baked into every language means the samples are usable as-is.”
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14 languages · adapted auth & payloads · response handling · in-browser · nothing sent · Last reviewed: 2026-06