Is it possible to use the OAUTH token with the OGC services as a parameter to create secure services?
OGC services with OAUTH
No, this is unfortunatelly not supported due to low level of support in GIS applications.
You can however use our process API with OAuth:
Authentication
The Sentinel Hub API uses OAuth2 Authentication and requires that you have an access token to identify you.
I’m currently using the Esri JS API for other rich features. How would I be able to integrate the Sentinel JS lib with mapping APIs other than Leaflet? It would also be helpful if you can direct me to a full implementation example code for your JS library.
We have developed a JavaScript library, which we use in combination with Leaflet:
GitHub
GitHub - sentinel-hub/sentinelhub-js: Download and process satellite imagery...
Download and process satellite imagery in JavaScript or TypeScript using Sentinel Hub services. - GitHub - sentinel-hub/sentinelhub-js: Download and process satellite imagery in JavaScript or TypeS...
Best example is probably EO Browser:
GitHub
GitHub - sentinel-hub/EOBrowser: The Earth Observation Browser is a search...
The Earth Observation Browser is a search tool for Sentinel-1, -2, -3, Landsat 5, 7, 8, Modis and Envisat satellite imagery - GitHub - sentinel-hub/EOBrowser: The Earth Observation Browser is a sea...
Find below a simple code snippet with Leaflet and process API
<html>
<head>
<meta charset="utf-8" />
<title>Sentinel Hub Process API services with Leaflet</title>
<style>
html,
body,
#map {
margin: 0;
padding: 0;
height: 100%;
width: 100%;
}
</style>
<link
rel="stylesheet"
href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css"
integrity="sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A=="
crossorigin=""
/>
<script
src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"
integrity="sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA=="
crossorigin=""
></script>
</head>
<body>
<div id="map"></div>
<script>
/*************************
# Sentinel Hub OAuth2 + Process API Leaflet example
How to use:
1) enter SentinelHub client ID and secret
(go to SH Dashboard -> User settings -> OAuth clients -> "+")
2) open this file in browser
*************************/
const CLIENT_ID = "enter client id here";
const CLIENT_SECRET = "enter secret here";
const fromDate = "2020-03-01T00:00:00.000Z";
const toDate = "2020-04-01T00:00:00.000Z";
const dataset = "S2L2A";
const evalscript = `//VERSION=3
function setup() {
return {
input: ["B02", "B03", "B04"],
output: { bands: 3 }
};
}
function evaluatePixel(sample) {
return [2.5 * sample.B04, 2.5 * sample.B03, 2.5 * sample.B02];
}
`;
// Promise which will fetch Sentinel Hub authentication token:
const authTokenPromise = fetch(
"https://services.sentinel-hub.com/oauth/token",
{
method: "post",
headers: { "Content-Type": "application/x-www-form-urlencoded" },
body: `grant_type=client_credentials&client_id=${encodeURIComponent(
CLIENT_ID
)}&client_secret=${encodeURIComponent(CLIENT_SECRET)}`,
}
)
.then((response) => response.json())
.then((auth) => auth["access_token"]);
// We need to extend Leaflet's GridLayer to add support for loading images through
// Sentinel Hub Process API:
L.GridLayer.SHProcessLayer = L.GridLayer.extend({
createTile: function (coords, done) {
const tile = L.DomUtil.create("img", "leaflet-tile");
const tileSize = this.options.tileSize;
tile.width = tileSize;
tile.height = tileSize;
const nwPoint = coords.multiplyBy(tileSize);
const sePoint = nwPoint.add([tileSize, tileSize]);
const nw = L.CRS.EPSG3857.project(
this._map.unproject(nwPoint, coords.z)
);
const se = L.CRS.EPSG3857.project(
this._map.unproject(sePoint, coords.z)
);
authTokenPromise.then((authToken) => {
// Construct Process API request payload:
// https://docs.sentinel-hub.com/api/latest/reference/#tag/process
const payload = {
input: {
bounds: {
bbox: [nw.x, se.y, se.x, nw.y],
properties: {
crs: "http://www.opengis.net/def/crs/EPSG/0/3857",
},
},
data: [
{
dataFilter: {
timeRange: {
from: fromDate,
to: toDate,
},
mosaickingOrder: "mostRecent",
},
processing: {},
type: dataset,
},
],
},
output: {
width: tileSize,
height: tileSize,
responses: [
{
identifier: "default",
format: {
type: "image/png",
},
},
],
},
evalscript: evalscript,
};
// Fetch the image:
fetch("https://services.sentinel-hub.com/api/v1/process", {
method: "post",
headers: {
Authorization: "Bearer " + authToken,
"Content-Type": "application/json",
Accept: "*/*",
},
body: JSON.stringify(payload),
})
.then((response) => response.blob())
.then((blob) => {
const objectURL = URL.createObjectURL(blob);
tile.onload = () => {
URL.revokeObjectURL(objectURL);
done(null, tile);
};
tile.src = objectURL;
})
.catch((err) => done(err, null));
});
return tile;
},
});
L.gridLayer.shProcessLayer = function (opts) {
return new L.GridLayer.SHProcessLayer(opts);
};
const sentinelHub = L.gridLayer.shProcessLayer();
// OpenStreetMap layer:
let osm = L.tileLayer("http://{s}.tile.osm.org/{z}/{x}/{y}.png", {
attribution:
'© <a href="http://osm.org/copyright">OpenStreetMap</a> contributors',
});
// configure Leaflet:
let baseMaps = {
OpenStreetMap: osm,
};
let overlayMaps = {
"Sentinel Hub Process API": sentinelHub,
};
let map = L.map("map", {
center: [46, 15], // lat/lng in EPSG:4326
zoom: 12,
layers: [osm, sentinelHub],
});
L.control.layers(baseMaps, overlayMaps).addTo(map);
</script>
</body>
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