start the feature of replacing an existing image

test/test.sh

@@ -0,0 +1,18 @@
+# requires node & curl & jq
+
+HOST=http://localhost:3002
+
+CODE='OWNER_DID="did:ethr:0x0000694B58C2cC69658993A90D3840C560f2F51F"; OWNER_PRIVATE_KEY_HEX="2b6472c026ec2aa2c4235c994a63868fc9212d18b58f6cbfe861b52e71330f5b"; didJwt = require("did-jwt"); didJwt.createJWT({ exp: Math.floor(Date.now() / 1000) + 60, iat: Math.floor(Date.now() / 1000), iss: OWNER_DID }, { issuer: OWNER_DID, signer: didJwt.SimpleSigner(OWNER_PRIVATE_KEY_HEX) }).then(console.log)'
+
+# exit as soon as anything fails
+set -e
+
+JWT=$(node -e "$CODE")
+RESULT=$(curl -X POST -H "Authorization: Bearer $JWT" -F "image=@test1.png" $HOST/image)
+echo $RESULT
+URL=$(echo $RESULT | jq -r '.url')
+
+STATUS_CODE=$(curl -o out-test1.png -w "%{http_code}" $URL);
+if [ $STATUS_CODE -ne 200 ]; then
+  echo "File is not accessible, received status code: $STATUS_CODE";
+fi