How To Create A Rest Service For Arcgis

If we are searching a geospatial information using whatsoever platform similar Voyager Open Information Network (ODN), it will requite many results. Frequently the result comes in ArcGIS Balance API. What is ArcGIS REST API? ArcGIS REST API is a web service that published by ArcGIS Server to access a information. It simply like other Open Geospatial Consortium (OGC) standard similar Spider web Map Service (WMS), merely the service is produced by ESRI ArcGIS Server instead of other GIS Server similar Geoserver.

As it is a product of ESRI, of course it will work seamlessly with ArcGIS family software like ArcGIS Desktop. But what if we practice non have access to ArcGIS software? How we can admission a data in ArcGIS REST API? Fortunately Open Source GIS software QGIS has a tool to access a data in ArcGIS REST API which called Add together ArcGIS Map Server Layer. Allow'due south have a look how to practise it.

1. To add together a ArcGIS Map Server Layer, nosotros are using a tool chosen Add ArcGIS Map Server Layer...... To get the tool only find carte du jour Layer >> Add Layer >> Add ArcGIS Map Server Layer... as in figure i.

Figure 1. Add ArcGIS Map Server Layer tool in QGIS

ii. And so it will open an Add together ArcGIS Map Server window as in effigy 3. Select New to create a new connection and fill the connexion name and URL. For this case, I used an ArcGIS Remainder service from ESRI ArcGIS Online. If you visit the website, can be seen at that place are links under Folders and Services (see figure two). In folder contains some dataset. So if we want to add Elevation data, we notice it in Acme folder. Meanwhile for services nosotros can apply it right away. But look! Information technology tin't piece of work in QGIS if we but put in the url the path: http://server.arcgisonline.com/ArcGIS/rest/services. Nosotros have to copy the url path straight to a service link with the end of url's proper name contains "MapServer". For that click a service link you desire access. For example, I want to admission World Imagery data, so I clicked a service link with the name World_Imagery and got the url path http://server.arcgisonline.com/arcgis/residuum/services/World_Imagery/MapServer.

Figure 2. ESRI ArcGIS Online Rest Service Page

3. As in effigy iii gave the connection name World Imagery and fill the URL path above http://server.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServer. After end click OK.

Effigy three. Create a new ArcGIS Map Server Connection

four. Select the Connect button. If the server is responding, then it volition populate all layers available in the service as in effigy 4.

Figure 4. ArcGIS REST API Layer

5. Select Word Imagery Layer, and then click Add. The globe imagery will be displayed in QGIS map window as in Figure 5.

Figure v. Globe Imagery from ArcGIS REST Service

six. Explore the imagery. Zoom in to go a better image resolution. To get the attribute information use the Place Features tool. Every bit in figure 6, we tin can see some attribute data from the imagery such as resolution, date, source, etc.

High resolution imagery from ArcGIS REST service

Figure 6. Loftier resolution imagery from ArcGIS REST service

That's the style how to use ArcGIS Residuum API service in QGIS. There are a lot of geodata out at that place beyond the globe that bachelor online with ArcGIS REST API service. Fifty-fifty though we do non have ArcGIS family software to admission or view the data, just QGIS provides the way to do it.

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