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stocks
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stocks
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#!/usr/bin/env bash
# Author: Alexander Epstein https://github.com/alexanderepstein
# Author: Navan Chauhan https://github.com/navanchauhan
# Author: Tyler Stubenvoll https://github.com/tjstub
currentVersion="1.23.0"
configuredClient=""
configuredPython=""
## This function determines which http get tool the system has installed and returns an error if there isnt one
getConfiguredClient()
{
if command -v curl &>/dev/null; then
configuredClient="curl"
elif command -v wget &>/dev/null; then
configuredClient="wget"
elif command -v http &>/dev/null; then
configuredClient="httpie"
elif command -v fetch &>/dev/null; then
configuredClient="fetch"
else
echo "Error: This tool requires either curl, wget, httpie or fetch to be installed." >&2
return 1
fi
}
## Allows to call the users configured client without if statements everywhere
httpGet()
{
case "$configuredClient" in
curl) curl -A curl -s "$@" ;;
wget) wget -qO- "$@" ;;
httpie) http -b GET "$@" ;;
fetch) fetch -q "$@" ;;
esac
}
getConfiguredPython()
{
if command -v python3 &>/dev/null; then
configuredPython="python3"
elif command -v python2 &>/dev/null; then
configuredPython="python2"
elif command -v python &>/dev/null; then
configuredPython="python"
else
echo "Error: This tool requires python to be installed."
return 1
fi
}
if [[ $(uname) != "Darwin" ]]; then
python()
{
case "$configuredPython" in
python3) python3 "$@" ;;
python2) python2 "$@" ;;
python) python "$@" ;;
esac
}
fi
checkInternet()
{
httpGet github.com > /dev/null 2>&1 || { echo "Error: no active internet connection" >&2; return 1; } # query github with a get request
}
## Grabs an element from a a json string and then echoes it to stdout
## $1 = the JSON string
## $n+1 = the elements to be indexed
AccessJsonElement() {
json="$1"
shift
accessor=""
for element in "$@"; do
accessor="${accessor}['$element']"
done
echo "$json" | python -c "from __future__ import print_function; import sys, json; print(json.load(sys.stdin)${accessor})"
return "$?"
}
## This function grabs information about a stock and prints it for consumption
printStockInformation()
{
# this data is updated hourly.
stockProfile="$(httpGet "https://financialmodelingprep.com/api/v3/company/profile/${1}")" > /dev/null
# this is realtime data.
stockPrice="$(httpGet "https://financialmodelingprep.com/api/v3/stock/real-time-price/${1}")" > /dev/null
# necessary for python in some cases
export PYTHONIOENCODING=utf8
# checking if we get any information back from the server if not
# chances are it isnt a valid stock symbol
AccessJsonElement "$stockProfile" "profile" "companyName" > /dev/null 2>&1 \
|| { echo "$1: Not a valid stock symbol"; exit 1; }
# The rest of the code is just extrapolating the data with python
# from the JSON response
name="$(AccessJsonElement "$stockProfile" "profile" "companyName")"
exchangeName="$(AccessJsonElement "$stockProfile" "profile" "exchange")"
latestPrice="$(AccessJsonElement "$stockPrice" "price")"
range="$(AccessJsonElement "$stockProfile" "profile" "range")"
priceChange="$(AccessJsonElement "$stockProfile" "profile" "changes")"
priceChangePercentage="$(AccessJsonElement "$stockProfile" "profile" "changesPercentage")"
volumeAvg="$(AccessJsonElement "$stockProfile" "profile" "volAvg")"
cat <<EOF
==============================================
| $name -- Stock Information
==============================================
| Stock Details
| * symbol: $1
| * Exchange: $exchangeName
| Real time data
| * Latest Price: $latestPrice
| Hourly data
| * 52 week range: $range
| * Price Change: $priceChange
| * PriceChangePercent: $priceChangePercentage
| * Volume average: $volumeAvg
==============================================
EOF
}
## This function queries yahoo to determine the stock ticker for a certain company
## this allows the usage of stocks to be extended where now you can enter stocks appple
## and it will determine the stock symbol for apple is AAPL and move on from there
getTicker()
{
input="$(echo "$@" | tr " " +)"
response="$(httpGet "http://d.yimg.com/autoc.finance.yahoo.com/autoc?query=$input®ion=1&lang=en%22")" > /dev/null
# using python to extrapolate the stock symbol
symbol="$(echo "$response" | python -c "from __future__ import print_function; import sys, json; print(json.load(sys.stdin)['ResultSet']['Result'][0]['symbol'])")"
# just unsets the entire response after using it since all I need is the stock ticker
unset response
}
update()
{
# Author: Alexander Epstein https://github.com/alexanderepstein
# Update utility version 2.2.0
# To test the tool enter in the defualt values that are in the examples for each variable
repositoryName="Bash-Snippets" #Name of repostiory to be updated ex. Sandman-Lite
githubUserName="alexanderepstein" #username that hosts the repostiory ex. alexanderepstein
nameOfInstallFile="install.sh" # change this if the installer file has a different name be sure to include file extension if there is one
latestVersion=$(httpGet https://api.github.com/repos/$githubUserName/$repositoryName/tags | grep -Eo '"name":.*?[^\\]",'| head -1 | grep -Eo "[0-9.]+" ) #always grabs the tag without the v option
if [[ $currentVersion == "" || $repositoryName == "" || $githubUserName == "" || $nameOfInstallFile == "" ]]; then
echo "Error: update utility has not been configured correctly." >&2
exit 1
elif [[ $latestVersion == "" ]]; then
echo "Error: no active internet connection" >&2
exit 1
else
if [[ "$latestVersion" != "$currentVersion" ]]; then
echo "Version $latestVersion available"
echo -n "Do you wish to update $repositoryName [Y/n]: "
read -r answer
if [[ "$answer" == [Yy] ]]; then
cd ~ || { echo 'Update Failed'; exit 1; }
if [[ -d ~/$repositoryName ]]; then rm -r -f $repositoryName || { echo "Permissions Error: try running the update as sudo"; exit 1; } ; fi
echo -n "Downloading latest version of: $repositoryName."
git clone -q "https://github.com/$githubUserName/$repositoryName" && touch .BSnippetsHiddenFile || { echo "Failure!"; exit 1; } &
while [ ! -f .BSnippetsHiddenFile ]; do { echo -n "."; sleep 2; };done
rm -f .BSnippetsHiddenFile
echo "Success!"
cd $repositoryName || { echo 'Update Failed'; exit 1; }
git checkout "v$latestVersion" 2> /dev/null || git checkout "$latestVersion" 2> /dev/null || echo "Couldn't git checkout to stable release, updating to latest commit."
chmod a+x install.sh #this might be necessary in your case but wasnt in mine.
./$nameOfInstallFile "update" || exit 1
cd ..
rm -r -f $repositoryName || { echo "Permissions Error: update succesfull but cannot delete temp files located at ~/$repositoryName delete this directory with sudo"; exit 1; }
else
exit 1
fi
else
echo "$repositoryName is already the latest version"
fi
fi
}
usage()
{
cat <<EOF
Stocks
Description: Finds the latest information on a certain stock.
Usage: stocks [flag] or stocks [company/ticker]
-u Update Bash-Snippet Tools
-h Show the help
-v Get the tool version
Examples:
stocks AAPL
stocks Tesla
EOF
}
if [[ $(uname) != "Darwin" ]]; then getConfiguredPython || exit 1; fi
getConfiguredClient || exit 1
while getopts "uvh" opt; do
case "$opt" in
\?) echo "Invalid option: -$OPTARG" >&2
exit 1
;;
h) usage
exit 0
;;
v) echo "Version $currentVersion"
exit 0
;;
u) checkInternet || exit 1
update
exit 0
;;
:) echo "Option -$OPTARG requires an argument." >&2
exit 1
;;
esac
done
if [[ $1 == "update" ]]; then
checkInternet || exit 1
update
exit 0
elif [[ $1 == "help" ]]; then
usage
exit 0
elif [[ $# == "0" ]]; then
usage
exit 0
else
checkInternet || exit 1
# the company name might have spaces so passing in all args allows for this
getTicker "$@"
# based on the stock symbol exrapolated by the getTicker function get
# information on the stock
printStockInformation "$symbol"
exit 0
fi