Getting Internal Server Error 500 after updating a page

[David Suchan]

Hello, I am trying to update our confluence page by inserting content of a file. I can update the page successfully with some simple "test message", but attempting to pass variable with content of cat file.md results in Internal Server Error.

Here is what I tried:

1. 

content=$(cat xyz/README.md)

curl -u login:pass -X PUT -H 'Content-Type:application/json' -d '{"id":"123","type":"page","title":"test","body":{"storage":{"value":"'"$content"'","representation":"storage"}},"version":{"number":19}}' https://xyz.com/confluence/rest/api/content/139793950

$content has the correct content of the file i want to show, i tried to pass $content in multiple ways using ' and " ( such as'$content', etc.) but all of them resulted in the error.

2. Here i tried to write the curl command into > file in three stages: 

echo '{"id":"123","type":"page","title":"test","body":{"storage":{"value":"' > file
echo $content >> file
echo '","representation":"storage"}},"version":{"number":19}}' >> file

Then i run curl:

curl -u login:pass -X PUT -H 'Content-Type:application/json' -d "$(cat file)" https://xyz.com/confluence/rest/api/content/139793950

When i run

echo $(cat file)

, it shows that I am indeed passing {"id":"123","type":"page","title":"test","body":{"storage":{"value":" my readme content ","representation":"storage"}},"version":{"number":19}} 

Where am I making a mistake in passing the variable?

I am going to repeat that I successfully put "test123" in the "value" and managed to update the page, meaning I am either passing things in "value" wrong or what I am trying to accomplish is not possible. 

I am running all this from a gitlab pipeline, trying to update the confluence page automatically every time we update our readme file located in our git repo,  therefore it is out of question to do things manually. Another thing will be figuring out how to increment version number, but I will do that once I manage to at least pass the content of the file.

I dont have access to logs, I would have to request it. Thank you for any knowledge that would help me get to the core of problem.

[David Suchan · Accepted solution]

It would really make things easier to debug if I could see json validation error instead of Internal server error 500. Can we close this?

[David Suchan]

I found the problem to be characters below ASCII 32, I hope I can replace them.