API request signature and test

api_curl_test.sh

#!/bin/bash

SECRET_KEY=$TEST_SENDER_KEY
ACCESS_ID=$TEST_SENDER_TOKEN
API_BASE=$TEST_ENDPOINT_BASE

query="{\"document\":{\"recipient_id\":\"$TEST_RECIPIENT_TOKEN\",\"data\":{\"id\":\"1\",\"first_name\":\"Bill\"}}}"

content_md5=$(echo -n $query | openssl md5 -binary | base64)
content_type='application/json'
request_uri='/api'
httpdate=$(date -u +"%a, %_d %b %Y %H:%M:%S GMT")
accept_header='application/vnd.test+json; version=1'

canonical_string="$content_type,$content_md5,$request_uri,$httpdate"
signature=$(echo -n $canonical_string | openssl sha1 -hmac $SECRET_KEY -binary | base64)

echo "Sending request: $API_BASE$request_uri"
echo "Query: $(echo $query | python -m json.tool)"; echo
curl -H "Authorization: APIAuth $ACCESS_ID:$signature" \
     -H "Content-MD5: $content_md5" \
     -H "Date: $httpdate" \
     -H "Accept: $accept_header" \
     -H "Content-type: $content_type" \
     -d "$query" \
     -v \
     $API_BASE$request_uri
echo