
Oracle IDCS has various rest apis which can be used to pull data and you can utilize it further for data analytics. Lets see how we can pull data using simple shell scripts.
Step1: Create a parameter file "param.txt" which will contain Customer ID, Customer secret and organization url (all in new line). You can leave the environment name as it is. Please note below values are just dummy values to showcase how you need to create param file. Validate using postman if your keys are working properly before running the script.
scripts> pwd
/home/hadoop/scripts
scripts> more param.txt
CID=
61rgrjk5869bjrvrb9999rbre20
CSEC=
01rgt-atbt-4956-9e77-15rjb74756nr64
ORG=
https://idcs-9bbrtj756bjer8gbk753gbvj8f7eh3.identity.oraclecloud.com
ENV=
QUAL

Step2: At the same path create the script for pulling data in JSON format, brief description is given before each step.

#Check if parameter file exists and its parameters
#!/bin/bash
[ -f ./param.txt ] && echo "Parameter file is present" || echo "Parameter file not found!! Create param.txt with CID,CSEC,ORG,ENV details."
ENV=`head -8 ./param.txt | tail -1`
[ -z "$ENV" ] && echo "Environment variable is empty" || echo "Environment variable looks good"
case $ENV in
DEV) echo "Welcome to DEV environment!" ;;
QUAL) echo "Welcome to QUAL environment!"
CID=`head -2 ./param.txt | tail -1`
CSEC=`head -4 ./param.txt | tail -1`
ORG=`head -6 ./param.txt | tail -1`
sleep 1;;
PL) echo "Welcome to ProdLike environment!" ;;
PT) echo "Welcome to ProdTest environment!" ;;
PROD) echo "Welcome to PROD environment!" ;;
*) echo "Invalid environment selection!" ;;
esac
# Create basic_token base64, basic_token generated at https://www.base64encode.org/
basic_token=`echo -n $CID:$CSEC | base64 -w 0`
# Function to regenerate token if token test fails or expires
regenToken()
{
curl -X POST \
"$ORG/oauth2/v1/token" \
-H "Authorization: Basic $basic_token" \
-H "Cache-Control: no-cache" \
-H "Content-Type: application/x-www-form-urlencoded" \
-d "grant_type=client_credentials&scope=urn%3Aopc%3Aidm%3A__myscopes__" | awk -F[":"] '{print$2}' | awk -F[","] '{print$1}' | awk '{print substr($0, 2, length($0) - 2)}' > access_token.tmp
echo "New token is generated.. access_token refreshed!!"
}
# Testing if token is valid, if invalid generate the new token
access_token=`more access_token.tmp`
tokenTest=`curl -X POST "$ORG/oauth2/v1/introspect" -H "Authorization: Basic $basic_token" -H "Cache-Control: no-cache" -H "Content-Type: application/x-www-form-urlencoded" -d token=$access_token | awk -F"," '{print$1}' | awk -F":" '{print$2}' | sed 's/[{}]//g'`
if [ "$tokenTest" = "true" ]; then echo "Token is valid..";
else
echo "Invalid token! Invoking func to pull new token.."
regenToken
access_token=`more access_token.tmp`
fi
# Remove all the previous files. Script can be modified later to pull delta records only
rm -f auditevents.idcs*
# Pull totalResults count
totalResults=`curl -X GET "$ORG/admin/v1/AuditEvents?&count=0" -H "Authorization: Bearer $access_token" -H "Cache-Control: no-cache" | awk -F"\"totalResults\"\:" '{print$2}'
| awk -F"," '{print$1}'`
echo "Total number of qualified records: $totalResults"
sleep 5
# Loop to pull the records with maximum limitation of 1000 items per page
itemsPerPage=1000
startIndex=1
while [ $startIndex -le $totalResults ]
do
echo "startIndex: $startIndex"
curl -X GET \
"$ORG/admin/v1/AuditEvents?&startIndex=$startIndex&count=$itemsPerPage" \
-H "Authorization: Bearer $access_token" \
-H "Cache-Control: no-cache" | awk -F"Resources" '{print$2}' | awk -F"startIndex" '{print$1}' | cut -c 4- | rev | cut -c 4- | rev > auditevents.idcs.json
# Formatting the JSON output and writing into a file with date time
PAT=]},{\"idcsCreatedBy
REP_PAT=]}'\n'{\"idcsCreatedBy
sed "s/$PAT/$REP_PAT/g" auditevents.idcs.json > auditevents.idcs.json_`date +"%Y%m%d_%H%M%S%N"`
startIndex=`expr $startIndex + 1000`
done
# Remove access token temp file
rm -f access_token.tmp
See also -
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#howto #PULL #DATA #oracle #idcs #howtopulldatafromoracleidcs #identitycloudservices