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# Send human-authored message

POST https://api.runtype.com/v1/messaging/conversations/{id}/send
Content-Type: application/json

Send a human-authored outbound message through the conversation's messaging channel.

Reference: https://docs.runtype.com/api-reference/runtype-api/messaging-conversations/send-human-authored-message

## Authentication

- `Authorization` header (bearer token, required) — API key or Clerk session token

## Servers

- `https://api.runtype.com` (Production, default)
- `https://api.runtype-staging.com` (Staging)

## Request

### Path parameters

- `id` (string, required)

### Body (application/json)

This endpoint expects an object.

- `content` (string, required)
- `metadata` (V1MessagingConversationsIdSendPostRequestBodyContentApplicationJsonSchemaMetadata, optional)
- `requireHumanMode` (boolean, optional, default: true)

## Response

### 201

Message sent to channel

- `deliveryResult` (V1MessagingConversationsIdSendPostResponsesContentApplicationJsonSchemaDeliveryResult, required)
- `message` (V1MessagingConversationsIdSendPostResponsesContentApplicationJsonSchemaMessage, required)

## Errors

### 400 Bad Request Error

Invalid request

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 401 Unauthorized Error

Unauthorized

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 403 Forbidden Error

Insufficient permissions

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 404 Not Found Error

Conversation not found

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 409 Conflict Error

Conversation mode changed concurrently: another operator resumed the conversation to automatic agent handling after this request's requireHumanMode precondition was checked but before the send committed (STATE_CHANGED). Nothing is persisted.

- `code` (enum, required) — Machine-readable conflict reason. STATE_CHANGED is retryable.
  - Allowed values: `ALREADY_HUMAN_MODE`, `ALREADY_AUTO_MODE`, `STATE_CHANGED`
- `error` (string, required)
- `details` (list of MessagingConversationConflictErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.
- `takeoverActorId` (string, optional, nullable) — Actor holding the conversation, when one does.
- `takeoverAt` (string, optional, nullable)

### 422 Unprocessable Entity Error

Conversation or surface cannot be addressed before anything is sent: no external thread/participant to reply to, or the surface type has no registered outbound channel adapter (UNSUPPORTED_SURFACE_TYPE). Nothing is persisted in either case.

- `error` (string, required)
- `code` (string, optional) — Stable error code, when applicable (e.g. UNSUPPORTED_SURFACE_TYPE).
- `details` (list of MessagingSendUndeliverableErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 500 Internal Server Error

Internal server error

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

### 502 Bad Gateway Error

Channel delivery failed

- `error` (string, required)
- `code` (string, optional) — Stable error code. `insufficient_scope` marks an API key that lacks a scope this request needs.
- `details` (list of ErrorDetailsItems, optional)
- `requiredScopes` (list of string, optional) — On `insufficient_scope`: every API key scope this request needs.

## Types

### V1MessagingConversationsIdSendPostRequestBodyContentApplicationJsonSchemaMetadata

- `attachments` (list of V1MessagingConversationsIdSendPostRequestBodyContentApplicationJsonSchemaMetadataAttachmentsItems, optional)
- `externalTimestamp` (string, optional)
- `headers` (map from string to string, optional)

### V1MessagingConversationsIdSendPostResponsesContentApplicationJsonSchemaDeliveryResult

- `deliveryStatus` (string, required)
- `externalMessageId` (string, required, nullable)

### V1MessagingConversationsIdSendPostResponsesContentApplicationJsonSchemaMessage

- `content` (string, required)
- `conversationId` (string, required)
- `createdAt` (string, required)
- `direction` (string, required, nullable)
- `externalMessageId` (string, required, nullable)
- `metadata` (map from string to any, required)
- `role` (string, required)
- `id` (string, optional)

### ErrorDetailsItems

- `message` (string, required)
- `code` (string, optional) — Stable Runtype validation code (e.g. MISSING_REQUIRED_FIELD, INVALID_ENUM).
- `path` (string, optional) — Dotted JSON path to the offending field.
- `suggestion` (string, optional) — Actionable hint (allowed values, accepted range, …).

### MessagingConversationConflictErrorDetailsItems

- `message` (string, required)
- `code` (string, optional) — Stable Runtype validation code (e.g. MISSING_REQUIRED_FIELD, INVALID_ENUM).
- `path` (string, optional) — Dotted JSON path to the offending field.
- `suggestion` (string, optional) — Actionable hint (allowed values, accepted range, …).

### MessagingSendUndeliverableErrorDetailsItems

- `message` (string, required)
- `code` (string, optional) — Stable Runtype validation code (e.g. MISSING_REQUIRED_FIELD, INVALID_ENUM).
- `path` (string, optional) — Dotted JSON path to the offending field.
- `suggestion` (string, optional) — Actionable hint (allowed values, accepted range, …).

### V1MessagingConversationsIdSendPostRequestBodyContentApplicationJsonSchemaMetadataAttachmentsItems

- `contentType` (string, required)
- `name` (string, required)
- `size` (double, required)
- `url` (string, optional)

## Examples

**Request**

```json
{
  "content": "string"
}
```

**Response**

```json
{
  "deliveryResult": {
    "deliveryStatus": "string",
    "externalMessageId": "string"
  },
  "message": {
    "content": "string",
    "conversationId": "string",
    "createdAt": "string",
    "direction": "string",
    "externalMessageId": "string",
    "metadata": {},
    "role": "string",
    "id": "string"
  }
}
```

**SDK Code**

```python
import requests

url = "https://api.runtype.com/v1/messaging/conversations/id/send"

payload = { "content": "string" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://api.runtype.com/v1/messaging/conversations/id/send';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"content":"string"}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

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

func main() {

	url := "https://api.runtype.com/v1/messaging/conversations/id/send"

	payload := strings.NewReader("{\n  \"content\": \"string\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

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

url = URI("https://api.runtype.com/v1/messaging/conversations/id/send")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"content\": \"string\"\n}"

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

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.runtype.com/v1/messaging/conversations/id/send")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"content\": \"string\"\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.runtype.com/v1/messaging/conversations/id/send', [
  'body' => '{
  "content": "string"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.runtype.com/v1/messaging/conversations/id/send");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"content\": \"string\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["content": "string"] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.runtype.com/v1/messaging/conversations/id/send")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```