有没有办法在R中查询webmap服务器？

Question

人口普查OnTheMap下载链接在格式1中似乎是常规的。如何在R中自动调用它？ （我有一个约30个县的名单，我希望这样做）。 SLC，犹他州和科罗拉多州丹佛的示例链接：

https://onthemap.ces.census.gov/cgi-bin/report.py?report_id=otm_d2c5f4708fff45dd8a153aeea29b66ae&settings=%7B%22analysis_type%22%3A%22area_profile_report%22%2C%22view%22%3A%22summary%22%2C%22characteristic%22%3A%22c000%22%2C%22year%22%3A2015%2C%22job_type%22%3A%22jt00%22%2C%22ap_segment%22%3A%22s000%22%2C%22origin%22%3A%22work%22%2C%22color%22%3A%5B%22%230000AA%22%5D%7D&mode=export_geography&format=shp

https://onthemap.ces.census.gov/cgi-bin/report.py?report_id=otm_b874bc58baa84cbea0d57c2f654450ef&settings=%7B%22analysis_type%22%3A%22area_profile_report%22%2C%22view%22%3A%22summary%22%2C%22characteristic%22%3A%22c000%22%2C%22year%22%3A2015%2C%22job_type%22%3A%22jt00%22%2C%22ap_segment%22%3A%22s000%22%2C%22origin%22%3A%22work%22%2C%22color%22%3A%5B%22%230000AA%22%5D%7D&mode=export_geography&format=shp

下载链接的字符串由3部分组成，第一部分和第三部分相同，即：

• 1）https://onthemap.ces.census.gov/cgi-bin/report.py?report_id=otm_
• 2a）d2c5f4708fff45dd8a153aeea29b66ae
• 2b）b874bc58baa84cbea0d57c2f654450ef
• 3）＆amp; settings =％7B％22analysis_type％22％3A％22area_profile_report％22％2C％22view％22％3A％22summary％22％2C％22 characteristic％22％3A％22c000％22％2C％22year％ 22％3A2015％2C％22job_type％22％3A％22jt00％22％2C％22ap_segment％22％3A％22s000％22％2C％22origin％22％3A％22work％22％2C％22color％22％3A％5B％ 22％230000AA％22％5D％7D＆安培;模式= export_geography＆安培;格式= SHP

换句话说，有没有办法使用R在webmap服务器上自动执行查询？