400 Bad Request Faraday error on a small variation of the sample code in README

[itsmeritesh]

Describe the bug
400 Bad Request - Faraday Error

To Reproduce
Steps to reproduce the behavior:

Running my function in a rails app.

Function takes a string argument OCR-text, which is scans of bio text books and written material.

Expected behavior
Should return a structured JSON of the organisms mentioned in the extracted_text.

CODE BLOCK

def extract_bio(ocr_text) 
@prompt = "Analyze the user provided text, and identify any references to wildlife. For all matching organisms include the name, biological name, description among other attributes, return results in the declared JSON format. [only elaborate where you can cite a verified source, return Nil otherwise"
@output_json_format = '[{"Name": "Name of the referenced animal or species",  
 "description": "brief description of the organism", "article-date": "date of publishing in datetime format","location": "full address, or lat long"}]'
claude = Anthropic::Client.new  
  
response = claude.messages(  
  parameters: {  
    model: "claude-3-haiku-20240307",  
    system: @prompt,  
    messages: [  
      {"role": "user", "content": ocr_text},  
      { "role": "assistant", "content": @output_json_format }  
    ],  
    max_tokens: 1000  
  }  
)
puts response
end

Desktop (please complete the following information):

• OS: [e.g. MacOS]
• Browser [e.g. chrome]

Additional context
I'm declaring Anthropic::Client in an initializer.rb file.

[itsmeritesh]

I'd posted this on the discord yesterday. This is a duplicate. Attaching the questions here too.

1. Is there a way to turn on verbose error logs ?
2. Is this still the recommended way to get JSON responses? In trying this out on a console, I'm getting hallucinations. Trying to correct it by dropping temp drops recall on my dataset.
3. If I'm trying to orchestrate a few such calls using Ruby, is there a framework that helps, similar to long chain, that's recommended for use in Ruby?

[Maclenn77]

3. If I'm trying to orchestrate a few such calls using Ruby, is there a framework that helps, similar to long chain, that's recommended for use in Ruby?

@itsmeritesh did you mean "langchain" ? Check langchainrb or boxcars

[gerrywastaken]

def extract_bio
  response = claude.messages(
    parameters: {
      model: "claude-3-haiku-20240307",
      system: @prompt,
      messages: [
        { "role": "user", "content": ocr_text },
        { "role": "assistant", "content": @output_json_format }
      ],
      max_tokens: 1000
    }
  )
  puts response
rescue
  $!.response_body
end

[itsmeritesh]

Thank you!