How to use U.S. Census API

[LeiZhou1]

I am learning how to access US Census data through Census API and make the data display on web application as a map.  Here is their website: Developers

Is there any instruction / sample codes that I can study? I guess my question is: how to get information without using map service url? Since ESRI JavaScript API always goes to create a map using map service first, and how to access online data without a map service? Is JavaScript API the right tool to do this in web map application? Thanks!

[JeffJacobson]

It looks like they might actually have a map service: Census TIGERweb GeoServices REST API

[LeiZhou1]

These map services do not contain all the content such population, income.  I guess what we need is to query all the topics. Does ESRI currently have any tool to use Census API? Thanks!

[JeffJacobson]

You'll need to write code that converts the output from the Census API into a GraphicsLayer.

[DurmusCesur2]

Try

Census Mapping Mashup | Hunt | Cartographic Perspectives 

[JohnGrayson]

Check out the Census ACS datasets curated by the Esri Living Atlas team as ready to use maps and layers:

https://www.arcgis.com/home/group.html?id=16b3a5ac36834ed6b3f16261d9a988ea 

You can learn more about these items here:

Mapping American Community Survey (ACS) Data Just Got Easier 

Make a Map About Your Community in 4 Easy Steps