HTTP Error: JSON parameter needs to be valid JSON

Questions
1

Describe the problem/error/question

I am trying to use Gamma.app api to create a doc with their api, Ive copied and pasted the curl from their docs as is and I am only going to add in the Inputtext (prompt) that generates the proposal into the JSON. Problem is that it seems to tell me it’s not valid, can I please get a second pair of eyes on this maybe I am missing something.

Problem is this isnt the first time ive received this error, got it ealier today in a different workflow so I am seeing a pattern.

What is the error message (if any)?

Please share your workflow

Share the output returned by the last node

Information on your n8n setup

  • n8n version: 1.109.2 (Cloud)
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app): cloud
  • Operating system: Windows 11
2

Hey @BrandonRamugondo hope all is well. Welcome to the community.

You could try to use the following JSON in the HTTP Request body:

{
  "textMode": "generate",
  "format": "presentation",
  "numCards": "10",
  "cardSplit": "auto",
  "textOptions": {
    "amount": "medium",
    "language": "en"
  },
  "imageOptions": {
    "source": "aiGenerated"
  },
  "inputText": {{ $json.proposal.toJsonString() }}
}

or, if that doesn’t work, share you input to the HTTP request node (you can use data pinning).

3

Thanks for the reply and welcoming. Here is the Input that goes into the HTTP node. I tried your suggestion but it still returned the same error.

4

Sadly your post was caught in the filter, could you try to submit it again?

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