zulip/templates/zerver/api/stream-message.md

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# Stream message
Send a message to a stream.
`POST {{ api_url }}/v1/messages`
## Usage examples
<div class="code-section" markdown="1">
<ul class="nav">
<li data-language="python">Python</li>
<li data-language="javascript">JavaScript</li>
<li data-language="curl">curl</li>
<li data-language="zulip-send">zulip-send</li>
</ul>
<div class="blocks">
<div data-language="curl" markdown="1">
```
curl {{ api_url }}/v1/messages \
-u BOT_EMAIL_ADDRESS:BOT_API_KEY \
-d "type=stream" \
-d "to=Denmark" \
-d "subject=Castle" \
-d "content=Something is rotten in the state of Denmark."
```
</div>
<div data-language="python" markdown="1">
```python
#!/usr/bin/env python
import zulip
# Download ~/zuliprc-dev from your dev server
client = zulip.Client(config_file="~/zuliprc-dev")
# Send a stream message
client.send_message({
"type": "stream",
"to": "Denmark",
"subject": "Castle",
"content": "Something is rotten in the state of Denmark."
})
```
</div>
<div data-language="zulip-send" markdown="1"> You can use `zulip-send`
(available after you `pip install zulip`) to easily send Zulips from
the command-line, providing the message content via STDIN.
```bash
zulip-send --stream Denmark --subject Castle \
--user othello-bot@example.com --api-key a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5
```
#### Passing in the message on the command-line
If you'd like, you can also provide the message on the command-line with the `-m` flag, as follows:
```bash
zulip-send --stream Denmark --subject Castle \
-m "Something is rotten in the state of Denmark." \
--user othello-bot@example.com --api-key a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5
```
You can omit the `user` and `api-key` arguments if you have a `~/.zuliprc` file.
See also the [full API endpoint documentation](/api).
</div>
<div data-language="javascript" markdown="1">
More examples and documentation can be found [here](https://github.com/zulip/zulip-js).
```js
const zulip = require('zulip-js');
// Download zuliprc-dev from your dev server
const config = {
zuliprc: 'zuliprc-dev',
};
zulip(config).then((client) => {
// Send a message
const params = {
to: 'Denmark',
type: 'stream',
subject: 'Castle',
content: 'Something is rotten in the state of Denmark.'
}
client.messages.send(params).then(console.log);
});
```
</div>
</div>
</div>
## Arguments
{generate_api_arguments_table|arguments.json|stream-message.md}
## Response
#### Return values
* `id`: The ID of the newly created message
#### Example response
{!successful-api-send-message-json-response.md!}
A typical failed JSON response for when the target stream does not exist:
```
{
'code':'BAD_REQUEST',
'msg':"Stream 'Denmarkk' does not exist",
'result':'error'
}
```
{!invalid-api-key-json-response.md!}