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@htammen
Last active November 24, 2021 07:38
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Retrieve an access token for a btp cf app
#!/bin/bash
# Get BTP OAuth access token
# Usage:
# btp_accesstoken <appname>
#
# Call this bash script with btp_accesstoken <appname> where appname is a name
# of your apps on btp.
# You can retrieve the list of apps with 'cf a'
# Login credentials are retrieved from bitwarden. You have to be logged into it already
# client_id, client_secret, oauth endpoint are retrieved from 'cf de <appname>'. You have to be looged into it as well.
appname=$1
function showHelp {
echo "usage: btp_accesstoken <appname>"
echo "You can retrieve the list of deployed apps with 'cf a'"
exit
}
if [ -z "$appname" ]
then
showHelp
fi
cf de ${appname}
# jq returns a string with leading and trailing quotes cut ... removes them
btp_oauth_url=$(cat default-env.json | jq '.VCAP_SERVICES.xsuaa[0].credentials.url' | cut -d '"' -f 2)
# the oauth endpoint
oauth_path="/oauth/token"
btp_oauth_url=${btp_oauth_url}${oauth_path}
client_id=$(cat default-env.json | jq .VCAP_SERVICES.xsuaa[0].credentials.clientid | cut -d'"' -f 2)
client_secret=$(cat default-env.json | jq .VCAP_SERVICES.xsuaa[0].credentials.clientsecret | cut -d '"' -f 2)
password=$(bw get password universalid.sap.com --raw)
username=$(bw get username universalid.sap.com --raw)
#echo $btp_oauth_url
#echo ${client_id}:${client_secret}
base64Auth=$(echo -n ${client_id}:${client_secret} | base64)
# echo ${base64Auth}
curl \
-X POST ${btp_oauth_url} \
-H 'Authorization: Basic '${base64Auth} \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'grant_type=password' \
--data-urlencode 'username='${username} \
--data-urlencode 'password='${password} \
--data-urlencode 'response_type=token' \
| jq .
# | jq .access_token
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