get_data: Get the data you need from qianxi.baidu.
In sppmao/ioiscraper: Get Data from the Website qianxi.baidu

Description Usage Arguments Value Examples

This function invokes query calls based on the parameters you provide.

get_data(
  admin_codes,
  category = c("inflow", "outflow", "internal_flow"),
  url = "https://huiyan.baidu.com/migration",
  nap_control = function() runif(1L, 0.5, 1),
  verbose = FALSE,
  storage = tibble()
)

`admin_codes`	a vector of administrative codes for each city that you want to query. See `baidu_names` for a full list of administrative codes.
`category`	one or more of the following values: "inflow", "outflow", and "internal_flow". Each of these values corresponds to one type of data on Baidu's website.
`url`	the master url of the website to be scraped. Default to Baidu Huiyan.
`nap_control`	controls the time interval between two query calls. You need this parameter to avoid being caught by any anti-bot mechanism.
`verbose`	whether or not to show additional information for a query call. Default to `FALSE`.
`storage`	to append the data received to an existing dataframe provided. if you provide this argument, then it becomes the default value that the function returns. Thus, even if a query call fails, your existing data will not be overwritten by a `NULL` value.

A nested tibble with two columns data and meta. Each row stores the data received from one query call.

# Query the inflow and outflow data for both Beijing ("110000") and Tianjin ("120000").
# The returned dataframe (of a tibble type) has a total of four rows.
df1 <- get_data(c("110000", "120000"), c("inflow", "outflow"))

## Not run: 
# Use an existing object/tibble to store your returned data.
storage_space <- df1
storage_space <- get_data("110000", "internal_flow", storage = storage_space)

## End(Not run)