Build a Socrata Query Object

Constructs a structured representation of a Socrata Query Language (SOQL) query that can be used with Socrata API endpoints. This function does not execute the query; it creates an object that can be passed to request functions or printed for inspection.

Usage

soc_query(
  select = NULL,
  where = NULL,
  group_by = NULL,
  having = NULL,
  order_by = NULL,
  limit = NULL
)

Arguments

select

string; Columns to retrieve.

where

string; Filter conditions.

group_by

string; Fields to group by.

having

string; Conditions to apply to grouped records.

order_by

string; Sort order.

limit

whole number; The maximum number of records to return.

Value

An object of class soc_query, which prints in a readable format and can be used to build query URLs.

See also

Use this with a function that executes Socrata requests, e.g., soc_read(url, query = soc_query(...))

Examples

query <- soc_query(
  select = "region, avg(magnitude) as avg_magnitude, count(*) as count",
  group_by = "region",
  having = "count >= 5",
  order_by = "avg_magnitude DESC"
)
print(query)
#> SELECT region, avg(magnitude) as avg_magnitude, count(*) as count
#> GROUP BY region
#> HAVING count >= 5
#> ORDER BY avg_magnitude DESC

# \donttest{
earthquakes_by_region <- soc_read(
  "https://soda.demo.socrata.com/dataset/USGS-Earthquakes-2012-11-08/3wfw-mdbc/",
  query = query
)
# }