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June 13, 2022 20:04
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A Bash script, using the jq JSON-parser, to scrape all the NHTSA 5 star vehcile ratings from its API http://www.nhtsa.gov/webapi/Default.aspx?SafetyRatings/API/5
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| years=$(curl -s 'http://www.nhtsa.gov/webapi/api/SafetyRatings?format=json' | jq -r '.Results[] .ModelYear') | |
| for year in $years; do | |
| echo "$year" | |
| echo "######" | |
| curl -s "http://www.nhtsa.gov/webapi/api/SafetyRatings/modelyear/$year?format=json" | jq -r '.Results[] .Make' | sed 's/ /%20/' | while read -r carmake; do | |
| # Get the year and make | |
| echo " $carmake" | |
| echo " =======" | |
| curl -s "http://www.nhtsa.gov/webapi/api/SafetyRatings/modelyear/$year/make/$carmake?format=json" | jq -r '.Results[] .Model' | sed 's/ /%20/' | while read -r model; do | |
| echo " $model" | |
| echo " -------" | |
| # Get the year, make, and model | |
| curl -s "http://www.nhtsa.gov/webapi/api/SafetyRatings/modelyear/$year/make/$carmake/model/$model?format=json" | jq -r '.Results[] .VehicleId' | while read -r id; do | |
| echo " $id: $year - $carmake - $model" | |
| curl -s "http://www.nhtsa.gov/webapi/api/SafetyRatings/VehicleId/$id?format=csv" -o "$id.csv" | |
| done | |
| done | |
| done | |
| done |
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