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

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# Send a message
{generate_api_description(/messages:post)}
## Usage examples
{start_tabs}
{tab|python}
{generate_code_example(python)|/messages:post|example}
{tab|js}
More examples and documentation can be found [here](https://github.com/zulip/zulip-js).
```js
const zulip = require('zulip-js');
// Pass the path to your zuliprc file here.
const config = {
zuliprc: 'zuliprc',
};
// Send a stream message
zulip(config).then((client) => {
// Send a message
const params = {
to: 'Denmark',
type: 'stream',
subject: 'Castle',
content: 'I come not, friends, to steal away your hearts.'
}
client.messages.send(params).then(console.log);
});
// Send a private message
zulip(config).then((client) => {
// Send a private message
const user_id = 9;
const params = {
to: [user_id],
type: 'private',
content: 'With mirth and laughter let old wrinkles come.',
}
client.messages.send(params).then(console.log);
});
```
{tab|curl}
``` curl
# For stream messages
curl -X POST {{ api_url }}/v1/messages \
-u BOT_EMAIL_ADDRESS:BOT_API_KEY \
-d "type=stream" \
-d "to=Denmark" \
-d "subject=Castle" \
-d $"content=I come not, friends, to steal away your hearts."
# For private messages
curl -X POST {{ api_url }}/v1/messages \
-u BOT_EMAIL_ADDRESS:BOT_API_KEY \
-d "type=private" \
-d "to=[9]" \
-d $"content=With mirth and laughter let old wrinkles come."
```
{tab|zulip-send}
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
# For stream messages
zulip-send --stream Denmark --subject Castle \
--user othello-bot@example.com --api-key a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5
# For private messages
zulip-send hamlet@example.com \
--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` or `--message` flag, as follows:
```bash
zulip-send --stream Denmark --subject Castle \
--message "I come not, friends, to steal away your hearts." \
--user othello-bot@example.com --api-key a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5
```
You can omit the `user` and `api-key` arguments if you have a `~/.zuliprc`
file.
{end_tabs}
## Arguments
{generate_api_arguments_table|zulip.yaml|/messages:post}
## Response
#### Return values
* `id`: The ID of the newly created message
#### Example response
A typical successful JSON response may look like:
{generate_code_example|/messages:post|fixture(200)}
A typical failed JSON response for when a stream message is sent to a stream
that does not exist:
{generate_code_example|/messages:post|fixture(400_0)}
A typical failed JSON response for when a private message is sent to a user
that does not exist:
{generate_code_example|/messages:post|fixture(400_1)}