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Adding comments to stocks

This commit is contained in:
Alex Epstein 2017-06-27 10:30:36 -04:00
parent 454d21b082
commit ca7fa6679d
1 changed files with 28 additions and 18 deletions
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stocks/stocks
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@ -1,22 +1,25 @@
#!/bin/bash
# Author: Alexander Epstein https://github.com/alexanderepstein
checkInternet()
{
echo -e "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo -e "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1 # query google with a get request
if [ $? -eq 0 ]; then #check if the output is 0, if so no errors have occured and we have connected to google successfully
return 0
else
echo "Error: no active internet connection" >&2
echo "Error: no active internet connection" >&2 #sent to stderr
return 1
fi
}
## This function grabs information about a stock and using python parses the
## JSON response to extrapolate the information for storage
getStockInformation()
{
symb=$1
stockInfo=$(curl -s "https://www.alphavantage.co/query?function=GLOBAL_QUOTE&symbol=$symb&apikey=KPCCCRJVMOGN9L6T") > /dev/null
export PYTHONIOENCODING=utf8
echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['Realtime Global Securities Quote']['02. Exchange Name']" > /dev/null 2>&1 || { echo "Not a valid stock symbol" ; exit 1; }
stockInfo=$(curl -s "https://www.alphavantage.co/query?function=GLOBAL_QUOTE&symbol=$1&apikey=KPCCCRJVMOGN9L6T") > /dev/null #grab the JSON response
export PYTHONIOENCODING=utf8 #necessary for python in some cases
echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['Realtime Global Securities Quote']['02. Exchange Name']" > /dev/null 2>&1 || { echo "Not a valid stock symbol" ; exit 1; } #checking if we get any information back from the server if not chances are it isnt a valid stock symbol
# The rest of the code is just extrapolating the data with python from the JSON response
exchangeName=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['Realtime Global Securities Quote']['02. Exchange Name']")
latestPrice=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['Realtime Global Securities Quote']['03. Latest Price']")
open=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['Realtime Global Securities Quote']['04. Open (Current Trading Day)']")
@ -27,7 +30,11 @@ getStockInformation()
priceChangePercentage=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['Realtime Global Securities Quote']['09. Price Change Percentage']")
volume=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['Realtime Global Securities Quote']['10. Volume (Current Trading Day)']")
lastUpdated=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['Realtime Global Securities Quote']['11. Last Updated']")
unset stockInfo # done with the JSON response not needed anymore
}
## This function uses all the variables that are set by getStockInformation and
## prints them out to the user in a human readable format
printStockInformation()
{
echo
@ -35,26 +42,29 @@ printStockInformation()
echo "============================================="
echo Exchange Name: $exchangeName
echo Latest Price: $latestPrice
if [[ $open != "--" ]];then echo "Open (Current Trading Day): $open"; fi
if [[ $high != "--" ]];then echo "High (Current Trading Day): $high"; fi
if [[ $low != "--" ]];then echo "Low (Current Trading Day): $low"; fi
if [[ $open != "--" ]];then echo "Open (Current Trading Day): $open"; fi ## sometime this is blank only print if value is present
if [[ $high != "--" ]];then echo "High (Current Trading Day): $high"; fi ## sometime this is blank only print if value is present
if [[ $low != "--" ]];then echo "Low (Current Trading Day): $low"; fi ## sometime this is blank only print if value is present
echo "Close (Previous Trading Day): $close"
echo "Price Change: $priceChange"
if [[ $priceChangePercentage != "%" ]];then echo "Price Change Percentage: $priceChangePercentage"; fi
if [[ $volume != "--" ]];then echo "Volume (Current Trading Day): $volume"; fi
if [[ $priceChangePercentage != "%" ]];then echo "Price Change Percentage: $priceChangePercentage"; fi ## sometime this is blank only print if value is present
if [[ $volume != "--" ]];then echo "Volume (Current Trading Day): $volume"; fi ## sometime this is blank only print if value is present
echo "Last Updated: $lastUpdated"
echo "============================================="
echo
}
## This function queries google to determine the stock ticker for a certain company
## this allows the usage of stocks to be extended where now you can enter stocks appple
## and it will determine the stock symbol for apple is AAPL and move on from there
getTicker()
{
response=$(curl -s "http://d.yimg.com/autoc.finance.yahoo.com/autoc?query=$1+$2+$3+$4+$5+$6+$7+$8+$9&region=1&lang=en%22") > /dev/null
symbol=$(echo $response | python -c "import sys, json; print json.load(sys.stdin)['ResultSet']['Result'][0]['symbol']")
unset response
symbol=$(echo $response | python -c "import sys, json; print json.load(sys.stdin)['ResultSet']['Result'][0]['symbol']") # using python to extrapolate the stock symbol
unset response #just unsets the entire response after using it since all I need is the stock ticker
}
checkInternet || exit 1
getTicker $1 $2 $3 $4 $5 $6 $7 $8 $9
getStockInformation $symbol
printStockInformation
checkInternet || exit 1 # check if we have a valid internet connection if this isnt true the rest of the script will not work so stop here
getTicker $1 $2 $3 $4 $5 $6 $7 $8 $9 # the company name might have spaces so passing in all args allows for this
getStockInformation $symbol # based on the stock symbol exrapolated by the getTicker function get information on the stock
printStockInformation # print this information out to the user in a human readable format