Created
August 1, 2014 18:49
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# mtcars as as service | |
# Create a JSON API for your data with GitHub + Blockspring | |
# This script will filter rows of mtcars based on API parameters | |
# import relevant libraries | |
suppressMessages(library(dplyr)) | |
suppressMessages(library(RJSONIO)) | |
# Get data from GitHub | |
mtcars_raw <- tempfile() | |
download.file("https://gist.githubusercontent.com/seankross/a412dfbd88b3db70b74b/raw/c2c6256d803967caa26d6fca231152c418438771/mtcars.csv", | |
mtcars_raw, method = "curl", quiet = TRUE) | |
mtcars_github <- read.csv(mtcars_raw) | |
# Read values from Blockspring API and filter data accordingly. | |
mtcars_result <- filter(mtcars_github, | |
mpg >= mpg_min, mpg <= mpg_max, | |
cyl >= cyl_min, cyl <= cyl_max, | |
disp >= disp_min, disp <= disp_max, | |
hp >= hp_min, hp <= hp_max, | |
drat >= drat_min, drat <= drat_max, | |
wt >= wt_min, wt <= wt_max, | |
qsec >= qsec_min, qsec <= qsec_max, | |
vs >= vs_min, vs <= vs_max, | |
am >= am_min, am <= am_max, | |
gear >= gear_min, gear <= gear_max, | |
carb >= carb_min, carb <= carb_max) | |
# cat() the result so only pure JSON is returned from the POST request. | |
cat(RJSONIO::toJSON(mtcars_result)) |
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