ING sandbox script

ing-get-token.sh

#!/bin/bash

# Generate the signature
export LANG=en_US
payload="grant_type=client_credentials"
payloadDigest=`echo -n "$payload" | openssl dgst -binary -sha256 | openssl base64`
digest=SHA-256=$payloadDigest
reqDate=$(LC_TIME=en_US.UTF-8 date -u "+%a, %d %b %Y %H:%M:%S GMT")
reqId=`uuidgen`
httpMethod=post
reqPath="/oauth2/token"
signingString="(request-target): $httpMethod $reqPath 
date: $reqDate
digest: $digest 
x-ing-reqid: $reqId"
signature=`printf "$signingString" | openssl dgst -sha256 -sign ~/sandboxcerts/example_client_signing.key -passin "pass:changeit" | openssl base64 -A`

# Request an access token
curl -i -X POST "https://api.sandbox.ing.com"$reqPath \
-H 'Accept: application/json' \
-H 'Content-Type: application/x-www-form-urlencoded' \
-H "Digest: ${digest}" \
-H "Date: ${reqDate}" \
-H "X-ING-ReqID: ${reqId}" \
-H "authorization: Signature keyId=\"e77d776b-90af-4684-bebc-521e5b2614dd\",algorithm=\"rsa-sha256\",headers=\"(request-target) date digest x-ing-reqid\",signature=\"$signature\"" \
-d "${payload}" \
--cert ~/sandboxcerts/example_client_tls.cer \
--key ~/sandboxcerts/example_client_tls.key