## Documentation Index

Fetch the complete documentation index at: [/llms.txt](https://docs.neynar.com/llms.txt)

Use this file to discover all available pages before exploring further.

Send event

### cURL

```
curl --request POST \
  --url https://api.neynar.com/v2/farcaster/app_host/user/event/ \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: NEYNAR_API_DOCS' \
  --data '
{
  "app_domain": "demo.neynar.com",
  "signed_message": "<string>"
}
'```

### Python

```
import requests

url = "https://api.neynar.com/v2/farcaster/app_host/user/event/"

payload = {
    "app_domain": "demo.neynar.com",
    "signed_message": "<string>"
}
headers = {
    "x-api-key": "NEYNAR_API_DOCS",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
```

### JavaScript

```
const options = {
  method: 'POST',
  headers: {'x-api-key': 'NEYNAR_API_DOCS', 'Content-Type': 'application/json'},
  body: JSON.stringify({app_domain: 'demo.neynar.com', signed_message: '<string>'})
};

fetch('https://api.neynar.com/v2/farcaster/app_host/user/event/', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
```

### PHP

```
<?php

$curl = curl_init();

curl_setopt_array($curl, [\
  CURLOPT_URL => "https://api.neynar.com/v2/farcaster/app_host/user/event/",\
  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([\
    'app_domain' => 'demo.neynar.com',\
    'signed_message' => '<string>'\
  ]),\
  CURLOPT_HTTPHEADER => [\
    "Content-Type: application/json",\
    "x-api-key: NEYNAR_API_DOCS"\
  ],\
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
?>
```

### Go

```
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

url := "https://api.neynar.com/v2/farcaster/app_host/user/event/"

payload := strings.NewReader("{\n  \"app_domain\": \"demo.neynar.com\",\n  \"signed_message\": \"<string>\"}\n")

req, _ := http.NewRequest("POST", url, payload)

req.Header.Add("x-api-key", "NEYNAR_API_DOCS")
	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))
}
```

### Unirest (Java)

```
HttpResponse<String> response = Unirest.post("https://api.neynar.com/v2/farcaster/app_host/user/event/")
  .header("x-api-key", "NEYNAR_API_DOCS")
  .header("Content-Type", "application/json")
  .body("{\n  \"app_domain\": \"demo.neynar.com\",\n  \"signed_message\": \"<string>\"}\n")
  .asString();
```

### Ruby

```
require 'uri'
require 'net/http'

url = URI("https://api.neynar.com/v2/farcaster/app_host/user/event/")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = 'NEYNAR_API_DOCS'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"app_domain\": \"demo.neynar.com\",\n  \"signed_message\": \"<string>\"}\n"

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

### Response Status Codes

- 200
- 400
- 404
- 500
- 502

### Example Responses

```
{
  "success": true,
  "message": "Successfully processed event"
}
```

```
{
  "message": "<string>",
  "code": "<string>",
  "property": "<string>",
  "status": 123
}
```

### Node.js SDK

🔗 **SDK Method:** [appHostPostEvent](https://docs.neynar.com/nodejs-sdk/app-host-apis/appHostPostEvent)

Use this API endpoint with the Neynar Node.js SDK for typed responses and better developer experience.

#### Authorizations

- **x-api-key**: string, header (default: NEYNAR_API_DOCS, required)

API key to authorize requests

#### Body

application/json

- **app_domain**: string, required

Domain of the mini app

Example:
```
"demo.neynar.com"
```

- **signed_message**: string, required

JFS-signed message containing the event payload. The message must be properly signed and contain valid event information. Can be provided as a single string or json object.

#### Response

**200**: application/json Success

- **success**: boolean, required

Example:
```
true
```