JSON error when passing image_url

[luiz-alma]

When I'm passing a formatted context to braintrust.build like so: prompt.build(context=context, query=query, image_url=image_url), I'm getting json.decoder.JSONDecodeError: Invalid control character at: line 1 column 23 (char 22). That happens whenever context has some line breaks.

I tried removing the image_url and it works. Also tried removing the context and leaving image_url, which also works. Seems like there's some issue with parsing the prompt variables.

[ankrgyl]

Hi there, can you share a repro (ideally the prompt, or a similar prompt that still reproduces the issue)?

[luiz-alma]

Here's the simplest version that's failing:

query_variables = {'context': '\n        ###### USER CONTEXT ######', 'query': 'is avocado ok?', 'image_url': ''}

I basically call this with:
prompt.built(context=query_variables["context"], query=query_variables["query"], image_url=query_variables["image_url"])

[ankrgyl]

We need a prompt definition that reproduces it to be able to assist you further.

[luiz-alma]

Does it work if I send a prompt_id and revision?

[ankrgyl]

Only if you add one of us, e.g. [email protected], as a user to your account with "Engineer" privileges.

[luiz-alma]

It's really simple implementation:

[luiz-alma]

@ankrgyl any updates?

[ankrgyl]

Hi @luiz-alma we confirmed the repro and will take a look at it sometime this week.

[ibolmo]

hi @luiz-alma. thank you for reporting and being patient with us!

I've got a possible fix here.

will follow-up when we get this ready for you to try

[luiz-alma]

awesome! thanks for the update