Editing Troubleshooting of Ollama API


Troubleshooting of [https://ollama.com/ Ollama] [https://github.com/ollama/ollama/blob/main/docs/api.md API]

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== How to fix "json: cannot unmarshal object ..." ==

'''Error message:'''
<pre>
HTTP Error 400: {"error": "json: cannot unmarshal object into Go struct field ChatRequest.messages of type []api.Message"}
</pre>

'''Solution'''

Root Cause: Incorrect `messages` format. The API expects an array format, but a single object was being sent.

Incorrect Format: ❌ This is an object
<pre>
'messages' => ['role' => 'user', 'content' => $message]
</pre>

Correct Format: ✅ This is an array containing an object
<pre>
'messages' => [['role' => 'user', 'content' => $message]]  
</pre>

'''Explanation:'''
The `messages` parameter must be an array of message objects, not a single message object. Each message object should contain `role` and `content` properties. The extra square brackets `[]` wrap the message object into an array, which matches the API's expected format.

This fix resolves the `"cannot unmarshal object into Go struct field ChatRequest.messages"` error.

[[Category: Tools]] 
[[Category: Ollama]]
[[Category: Revised with LLMs]]
[[Category: Generative AI]]