[APNs Authentication Key] APNS Test PUSH Script for debugging

APNsAuthenticationKeyTestPush.sh

#!/bin/bash
# https://firebase.googleblog.com/2017/01/debugging-firebase-cloud-messaging-on.html
# https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/CommunicatingwithAPNs.html#//apple_ref/doc/uid/TP40008194-CH11-SW1
# https://developer.apple.com/videos/play/wwdc2016/724/

clear

echo
echo "------       Debug start       ------"
echo

DEVICE_ID="Apple deviceToken format: %02.2hhx"

KEY_FILE="./key_file.p8"
AUTH_KEY_ID=
TEAM_ID=
BUNDLE_ID=
#ENDPOINT=https://api.push.apple.com
ENDPOINT=https://api.development.push.apple.com

read -r -d '' payload <<-'EOF'
{
   "aps": {
      "badge": 2,
      "alert": {
         "title": "Hello from APNs!",
         "sound": "default",
         "body": "APNs body content here"
      },
      "content-available": "1"
   }
}
EOF

# --------------------------------------------------------------------------

base64() {
   openssl base64 -e -A | tr -- '+/' '-_' | tr -d =
}

sign() {
   printf "$1"| openssl dgst -binary -sha256 -sign "$KEY_FILE" | base64
}

time=$(date +%s)
header=$(printf '{ "alg": "ES256", "kid": "%s" }' "$AUTH_KEY_ID" | base64)
claims=$(printf '{ "iss": "%s", "iat": %d }' "$TEAM_ID" "$time" | base64)
jwt="$header.$claims.$(sign $header.$claims)"

curl --verbose \
   --header "content-type: application/json" \
   --header "authorization: bearer $jwt" \
   --header "apns-topic: $BUNDLE_ID" \
   --data "${payload}" \
   $ENDPOINT/3/device/$DEVICE_ID
   
echo
echo "------       Debug end       ------"
echo