| # Error Codes Reference |
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| ## 🔹 Summary Table |
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| | Code | Message | Description | |
| | ---- | ----------------------------------------------------- | ------------------------------------------ | |
| | 400 | Text must contain at least two words | Input text too short | |
| | 400 | Text should be less than 10,000 characters | Input text too long | |
| | 404 | The file is empty or only contains whitespace | File has no usable content | |
| | 404 | Invalid file type. Only .docx, .pdf, and .txt allowed | Unsupported file format | |
| | 403 | Invalid or expired token | Authentication token is invalid or expired | |
| | 413 | Text must contain at least two words | Text too short (alternative condition) | |
| | 413 | Text must be less than 10,000 characters | Text too long (alternative condition) | |
| | 413 | The image error (preprocessing) | Image size/content issue | |
| | 500 | Error processing the file | Internal server error while processing | |
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| ## 🔍 Error Details |
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| ### `400` - Bad Request |
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| - **Text must contain at least two words** |
| The input text field is too short. Submit at least two words to proceed. |
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| - **Text should be less than 10,000 characters** |
| Input text exceeds the maximum allowed character limit. Consider truncating or summarizing the content. |
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| ### `404` - Not Found |
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| - **The file is empty or only contains whitespace** |
| The uploaded file is invalid due to lack of meaningful content. Ensure the file has readable, non-empty text. |
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| - **Invalid file type. Only .docx, .pdf, and .txt are allowed** |
| The file format is not supported. Convert the file to one of the allowed formats before uploading. |
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| ### `403` - Forbidden |
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| - **Invalid or expired token** |
| Your access token is either expired or incorrect. Try logging in again or refreshing the token. |
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| ### `413` - Payload Too Large |
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| - **Text must contain at least two words** |
| The text payload is too small or malformed under a large upload context. Add more content. |
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| - **Text must be less than 10,000 characters** |
| The payload exceeds the allowed character limit for a single request. Break it into smaller chunks if needed. |
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| - **The image error** |
| The uploaded image is too large or corrupted. Try resizing or compressing it before retrying. |
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| ### `500` - Internal Server Error |
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| - **Error processing the file** |
| An unexpected server-side failure occurred during file analysis. Retry later or contact support if persistent. |
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| > 📌 **Note:** Always validate inputs, check token status, and follow file guidelines before making requests. |
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