URLs
The website supports several URL formats for displaying archived images or images from individual callsigns:
https://ssdv.habhub.org [Latest live images]
https://ssdv.habhub.org/CALLSIGN [Latest live images for CALLSIGN only]
https://ssdv.habhub.org/CALL1,CALL2 [Latest live images for multiple callsigns]
https://ssdv.habhub.org/YYYY-MM-DD [Archived images received on specified date]
https://ssdv.habhub.org/CALLSIGN/YYYY-MM-DD
https://ssdv.habhub.org/CALL1,CALL2/YYYY-MM-DD
Query string parameters:
| Parameter | Description | Default |
|---|---|---|
| tz | Display and filter dates in this timezone. (Eg.: tz=Europe/London) | UTC |
Notes
Dates
The API only uses UTC time, and returns dates in an ISO-8601 format. When sending a date any of the following formats are valid:
2015-10-22 [Same as 2015-10-22T00:00:00Z]
2015-10-22T15:27:40+00:00
2015-10-22T15:27:40Z
/api/v0/packets
POST
Submit one or many SSDV packets to the live page. The server will return with the ID of the image the packets where assigned to, or an error on failure.
POST Body (Single Packet)
{
"type": "packet",
"packet": "packet data", [The SSDV packet, encoded as per below]
"encoding": "base64", [Use "base64" or "hex"]
"received": "2015-10-21T15:41:36Z", [Time the packet was received]
"receiver": "MI0VIM", [Receivers callsign]
"fixes": 2 [Optional, number of bytes corrected by the FEC]
}
Response
Returns the ID of the image the packet was assigned to.
POST Body (Multiple Packets)
{
"type": "packets",
"packets":
[
{
"type": "packet",
"packet": "packet data", [The SSDV packet, up to 256 bytes encoded as per below]
"encoding": "base64", [Use "base64" or "hex"]
"received": "2015-10-21T15:41:36Z", [Time the packet was received]
"receiver": "MI0VIM", [Receivers callsign]
"fixes": 2 [Optional, number of bytes corrected by the FEC]
},
...
]
}
Response
Returns the ID of each image the submitted packets where assigned to.
/api/v0/images
GET
Fetch information for images.
| Parameter | Description | Default |
|---|---|---|
| callsign | Return images with this callsign | |
| id | Returns images with this image ID | |
| from | Return images created on or after this time (Eg.: 2015-10-23T00:00:00Z) | |
| until | Return images created up to but not including this time | |
| last_id | Return images updated since this packet ID | |
| include_packets | Include details on each packet received | false |
| missing_packets | Include a list of known missing packets | false |
| sort | Set the order of the results (asc / desc) | asc |
| limit | Limit the number of images returned |
Response
Returns an array of images matched by the parameters. See below for an example of the JSON returned.
/api/v0/images/:id
| Option | Description |
|---|---|
| :id | The ID of the image being queried |
GET
Fetch information for an individual image.
| Parameter | Description | Default |
|---|---|---|
| include_packets | Include details on each packet received | false |
| missing_packets | Include a list of known missing packets | false |
Response
{
"type": "image",
"id": 5164, [The unique identifier for this image]
"callsign": "EAGLE", [The callsign of the image sender]
"image_id": 2, [The image ID set by the sender]
"width": 512, [Width of the image in pixels]
"height": 288, [Height of the image in pixels]
"subsampling": "2x2", [JPEG subsampling mode used]
"packet_type": "normal", [SSDV packet type, "normal", or "nofec"]
"packet_length": 256, [SSDV packet length in bytes, normally 256]
"packets_received": 2, [Number of packets received]
"packets_missing": 2, [Number of packets known to be missing]
"last_packet": 3, [The highest packet ID received]
"received_eoi": true, [True if a packet has the EOI flag set]
"created": "2015-10-21T15:41:36Z", [Time the first packet was submitted]
"updated": "2015-10-21T15:43:53Z", [Time the last packet was submitted]
"received_by": [ "MI0VIM", "Bob", "Lunar_Lander" ], [List of receivers who uploaded data for this image]
"image_href": "http://ssdv.sanslogic.co.uk/images/20151021-154136-EAGLE-2.jpeg?u=2", [A link to the decoded JPEG image]
"data_href": "http://ssdv.sanslogic.co.uk/images/20151021-154136-EAGLE-2.bin?u=2", [A link to the received SSDV data]
"packets": [ [An optional array containing details on each packet received]
{
"packet_id": 0, [Packet number]
"eoi": false, [True if the EOI flag was set in this packet]
"received_by": [ "MI0VIM", "Bob", "Lunar_Lander" ] [List of receivers who uploaded this packet]
},
{
"packet_id": 3,
"eoi": true,
"received_by": [ "MI0VIM", "Bob" ]
}
],
"missing_packets": [ 1, 2 ] [An optional array listing the ID of each packet known to be missing]
}
/latest.php
GET
| Parameter | Description | Default |
|---|---|---|
| callsign | Return images with this callsign |
Response
Returns a 302 redirect to the latest image for the specified callsign, or a 404 error if no matching image was found.