Rob Wiederstein
b6f67eefc8
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Deploy stAndrews / deploy (push) Successful in 7s
- update_listings.R: pulls 1-mile radius, clips to plat boundary - Listings tab: table with listed date, address, sqft, price, $/sqft - Weekly cron: Sunday 11:30pm (30 min after owners refresh) - httr2 added to renv.lock
69 lines
2.5 KiB
R
69 lines
2.5 KiB
R
# update_listings.R
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# Weekly update: pull active listings from RentCast within 1 mile of
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# St. Andrews center, clip to plat boundary, save data/listings.rds.
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# Input: .Renviron (RENTCAST_API_KEY)
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# data/plats/plats.shp
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# Output: data/listings.rds
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library(httr2)
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library(jsonlite)
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library(sf)
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library(dplyr)
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# ── API key ───────────────────────────────────────────────────────────────────
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api_key <- Sys.getenv("RENTCAST_API_KEY")
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if (identical(api_key, "")) stop("Missing RENTCAST_API_KEY in .Renviron")
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# ── Pull listings ─────────────────────────────────────────────────────────────
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resp <- request("https://api.rentcast.io/v1/listings/sale") |>
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req_headers(
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"Accept" = "application/json",
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"X-Api-Key" = api_key
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) |>
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req_url_query(
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latitude = 27.076199,
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longitude = -82.362253,
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radius = 1,
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status = "Active",
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limit = 500
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) |>
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req_retry(max_tries = 3) |>
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req_perform()
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if (resp_status(resp) >= 400)
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stop("RentCast API error: HTTP ", resp_status(resp), "\n", resp_body_string(resp))
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listings_raw <- jsonlite::fromJSON(resp_body_string(resp), flatten = TRUE)
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cat("Fetched:", nrow(listings_raw), "listings\n")
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# ── Clip to St. Andrews plat boundary ────────────────────────────────────────
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plats <- sf::st_read("./data/plats/plats.shp", quiet = TRUE) |>
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sf::st_union()
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listings_sf <- sf::st_as_sf(
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listings_raw,
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coords = c("longitude", "latitude"),
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crs = 4326,
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remove = FALSE
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)
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in_plat <- lengths(sf::st_within(listings_sf, plats)) > 0
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listings <- listings_raw[in_plat, ]
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cat("After plat clip:", nrow(listings), "listings\n")
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# ── Select and clean columns ──────────────────────────────────────────────────
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listings <- listings |>
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transmute(
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listed_date = as.Date(listedDate),
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address = formattedAddress,
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sqft = as.numeric(squareFootage),
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price = as.numeric(price),
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price_per_sqft = round(price / sqft, 0),
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latitude,
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longitude
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) |>
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arrange(desc(listed_date))
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cat("Listings saved:", nrow(listings), "\n")
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saveRDS(listings, "./data/listings.rds")
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