Error uploading images to Dify workflow knowledge base

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1

Ubuntu 22.04

Docker deployment of Dify 1.11.0

Issue 1: When I use Java to call the Dify API to upload an image to the Dify knowledge base, an error occurs. However, uploading regular document files does not result in any error.

But when using the Dify visual platform to directly add image files on the knowledge base page, there is no error.

Java calling code

// Prepare multipart request
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
headers.set("Authorization", "Bearer " + apiKey);

MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
body.add("file", new FileSystemResource(file));
// "/home/ruoyi/uploadPath/01.jpeg"

// Build data JSON object, including indexing_technique, process_rule, and doc_form
String dataJson = String.format(
        "{\"indexing_technique\":\"high_quality\",\"process_rule\":{\"mode\":\"automatic\"},\"doc_form\":\"%s\"}",
        docForm
);
body.add("data", dataJson);

HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(body, headers);

String url = difyApiUrl + "/datasets/" + datasetId + "/document/create-by-file";

ResponseEntity<Map> response = restTemplate.postForEntity(url, requestEntity, Map.class);

Response error

400 BAD REQUEST: “{"code":"invalid_param","message":"","status":400}\n”

2

Hello, has it been resolved? We are also encountering the same error.

[models] Bad Request Error, Error code: 400 - {‘error’: {‘message’: ‘Invalid image URL. The URL must be a valid HTTP or HTTPS URL, or a data URL with base64 encoding.’, ‘type’: ‘rix_api_error’, ‘param’: ‘’, ‘code’: ‘BadRequest’}}