API Reference - media.previous
Required Privacy:
Data &
Location
This API allows to work with the previous song or radio station function.
Calling the media.previous with "type": "SET" will make the sound system switch to the previous song or radio station.
| Input Parameter | |||||
|---|---|---|---|---|---|
| No input params |
| Output Data | ||||
|---|---|---|---|---|
| No outputted data |
Code Example
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webportal.set(
/* api name */
"media.previous",
/* parameters */
null
)
/* callback for `REPLY` messages */
.then((message) => {
if (message.status === 200) {
/* handle `REPLY` success */
}
else { /* handle `REPLY` error */ }
})
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{
"id": "7372c16f-5f2f-42c9-84a7-5490e35f1be0",
"type": "SET",
"api": "media.previous",
"params": null
}
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// --- format of the `REPLY` message ---
{
"id": "7372c16f-5f2f-42c9-84a7-5490e35f1be0",
"type": "REPLY",
"api": "media.previous",
"status": 200,
"statusText": "OK"
}
false
This API allows to work with the previous song or radio station function.
Calling the media.previous with "type": "SUBSCRIBE" will send a notification when the previous function of the sound system is used to go to the previous song or radio station.
| Input Parameter | |||||
|---|---|---|---|---|---|
| No input params |
| Output Data | ||||
|---|---|---|---|---|
| No outputted data |
Code Example
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webportal.subscribe(
/* api name */
"media.previous",
/* parameters */
null,
/* callback for `NOTIFY` messages */
async (notifyMessage) => {
if (notifyMessage.status === 200) {
/* handle `NOTIFY` response */
}
else { /* handle `NOTIFY` error */ }
}
)
/* callback for `REPLY` messages */
.then((message) => {
if (message.status === 200) {
/* handle `REPLY` success */
}
else { /* handle `REPLY` error */ }
})
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{
"id": "7372c16f-5f2f-42c9-84a7-5490e35f1be0",
"type": "SUBSCRIBE",
"api": "media.previous",
"params": null
}
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// --- format of the `REPLY` message ---
// type: acknowledge the status of the subscription
// reception: only once after the subscription request
// contains outputed data: no
{
"id": "7372c16f-5f2f-42c9-84a7-5490e35f1be0",
"type": "REPLY",
"status": 200,
"statusText": "OK"
}
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// --- format of the `NOTIFY` message ---
// type: event message about the subscription
// reception: each time the conditions of the subscription are met
// contains outputed data: yes
{
"id": "7372c16f-5f2f-42c9-84a7-5490e35f1be0",
"type": "NOTIFY",
"api": "media.previous",
"status": 200,
"statusText": "OK"
}