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how to use access api to pass image for visual chat? #8538

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opened 2026-02-21 18:26:13 -05:00 by yindo · 3 comments
yindo commented 2026-02-21 18:26:13 -05:00
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Originally created by @cqray1990 on GitHub (Feb 22, 2025).

Self Checks

  • I have searched for existing issues search for existing issues, including closed ones.
  • I confirm that I am using English to submit this report (我已阅读并同意 Language Policy).
  • [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:）
  • Please do not modify this template :) and fill in all the required fields.

1. Is this request related to a challenge you're experiencing? Tell me about your story.

i try to use the code as follows:

LLM model name is qwen2-vl-7b

 curl -X POST 'http://localhost/v1/chat-messages' \
--header 'Authorization: Bearer {api_key}' \
--header 'Content-Type: application/json' \
--data-raw '{
    "inputs": {},
    "query": "What are the specs of the iPhone 13 Pro Max?",
    "response_mode": "streaming",
    "conversation_id": "",
    "user": "abc-123",
    "files": [
      {
        "type": "image",
        "transfer_method": "remote_url",
        "url": "https://cloud.dify.ai/logo/logo-site.png"
      }
    ]
}'

raise error:

{"code": "internal_server_error", "message": "The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.", "status": 500}

but  use the code as fllows, it can be accessed :
  curl -X POST 'http://localhost/v1/chat-messages' \
--header 'Authorization: Bearer {api_key}' \
--header 'Content-Type: application/json' \
--data-raw '{
    "inputs": {},
    "query": "What are the specs of the iPhone 13 Pro Max?",
    "response_mode": "streaming",
    "conversation_id": "",
    "user": "abc-123
}'

2. Additional context or comments

No response

3. Can you help us with this feature?

  • I am interested in contributing to this feature.
Originally created by @cqray1990 on GitHub (Feb 22, 2025). ### Self Checks - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this report (我已阅读并同意 [Language Policy](https://github.com/langgenius/dify/issues/1542)). - [x] [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:） - [x] Please do not modify this template :) and fill in all the required fields. ### 1. Is this request related to a challenge you're experiencing? Tell me about your story. i try to use the code as follows: LLM model name is qwen2-vl-7b ``` curl -X POST 'http://localhost/v1/chat-messages' \ --header 'Authorization: Bearer {api_key}' \ --header 'Content-Type: application/json' \ --data-raw '{ "inputs": {}, "query": "What are the specs of the iPhone 13 Pro Max?", "response_mode": "streaming", "conversation_id": "", "user": "abc-123", "files": [ { "type": "image", "transfer_method": "remote_url", "url": "https://cloud.dify.ai/logo/logo-site.png" } ] }' ``` raise error: ``` {"code": "internal_server_error", "message": "The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.", "status": 500} but use the code as fllows, it can be accessed : curl -X POST 'http://localhost/v1/chat-messages' \ --header 'Authorization: Bearer {api_key}' \ --header 'Content-Type: application/json' \ --data-raw '{ "inputs": {}, "query": "What are the specs of the iPhone 13 Pro Max?", "response_mode": "streaming", "conversation_id": "", "user": "abc-123 }' ``` ### 2. Additional context or comments _No response_ ### 3. Can you help us with this feature? - [ ] I am interested in contributing to this feature.
yindo added the 🌚 invalid label 2026-02-21 18:26:13 -05:00
yindo closed this issue 2026-02-21 18:26:14 -05:00
yindo commented 2026-02-21 18:26:14 -05:00
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@dosubot[bot] commented on GitHub (Feb 22, 2025):

To use the access API to pass an image for visual chat without encountering an internal server error, ensure that your request is correctly formatted. Here is an example of how to structure the request:

{
  "query": "Your query here",
  "inputs": {},
  "response_mode": "streaming", // or "blocking"
  "user": "unique_user_id",
  "conversation_id": "optional_conversation_id",
  "files": [
    {
      "type": "image",
      "transfer_method": "remote_url", // or "local_file"
      "url": "http://example.com/image.png" // only if transfer_method is "remote_url"
      // "upload_file_id": "file_id" // only if transfer_method is "local_file"
    }
  ],
  "auto_generate_name": true
}

Make sure to include the Authorization header with your API-Key:

Authorization: Bearer {API_KEY}

Ensure that the image URL is accessible if using remote_url, or provide a valid upload_file_id if using local_file. Additionally, verify that the model you are using supports the Vision capability, as the file input is only available when the model supports this feature. This should help avoid internal server errors [1][2][3].

If you encounter an internal server error, check the error response for details. Common errors include invalid_param, app_unavailable, provider_not_initialize, provider_quota_exceeded, model_currently_not_support, and completion_request_error. Ensure that your parameters are correct and that your model configuration is available and supports the required capabilities.

To continue talking to Dosu, mention @dosu.

Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

@dosubot[bot] commented on GitHub (Feb 22, 2025): <!-- Answer --> To use the access API to pass an image for visual chat without encountering an internal server error, ensure that your request is correctly formatted. Here is an example of how to structure the request: ```json { "query": "Your query here", "inputs": {}, "response_mode": "streaming", // or "blocking" "user": "unique_user_id", "conversation_id": "optional_conversation_id", "files": [ { "type": "image", "transfer_method": "remote_url", // or "local_file" "url": "http://example.com/image.png" // only if transfer_method is "remote_url" // "upload_file_id": "file_id" // only if transfer_method is "local_file" } ], "auto_generate_name": true } ``` Make sure to include the `Authorization` header with your `API-Key`: ```javascript Authorization: Bearer {API_KEY} ``` Ensure that the image URL is accessible if using `remote_url`, or provide a valid `upload_file_id` if using `local_file`. Additionally, verify that the model you are using supports the Vision capability, as the file input is only available when the model supports this feature. This should help avoid internal server errors <sup>[[1]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_chat.zh.mdx)</sup><sup>[[2]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_chat.en.mdx)</sup><sup>[[3]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_advanced_chat.en.mdx)</sup>. If you encounter an internal server error, check the error response for details. Common errors include `invalid_param`, `app_unavailable`, `provider_not_initialize`, `provider_quota_exceeded`, `model_currently_not_support`, and `completion_request_error`. Ensure that your parameters are correct and that your model configuration is available and supports the required capabilities. <!-- Dosu Comment Footer --> *To continue talking to [Dosu](https://dosu.dev), mention @dosu.* --- <sup>Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=other)</sup>
yindo commented 2026-02-21 18:26:14 -05:00
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@cqray1990 commented on GitHub (Feb 23, 2025):

To use the access API to pass an image for visual chat without encountering an internal server error, ensure that your request is correctly formatted. Here is an example of how to structure the request:

{
"query": "Your query here",
"inputs": {},
"response_mode": "streaming", // or "blocking"
"user": "unique_user_id",
"conversation_id": "optional_conversation_id",
"files": [
{
"type": "image",
"transfer_method": "remote_url", // or "local_file"
"url": "http://example.com/image.png" // only if transfer_method is "remote_url"
// "upload_file_id": "file_id" // only if transfer_method is "local_file"
}
],
"auto_generate_name": true
}

Make sure to include the Authorization header with your API-Key:

Authorization: Bearer {API_KEY}

Ensure that the image URL is accessible if using remote_url, or provide a valid upload_file_id if using local_file. Additionally, verify that the model you are using supports the Vision capability, as the file input is only available when the model supports this feature. This should help avoid internal server errors [1][2][3].

If you encounter an internal server error, check the error response for details. Common errors include invalid_param, app_unavailable, provider_not_initialize, provider_quota_exceeded, model_currently_not_support, and completion_request_error. Ensure that your parameters are correct and that your model configuration is available and supports the required capabilities.

To continue talking to Dosu, mention @dosu.

Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

To use the access API to pass an image for visual chat without encountering an internal server error, ensure that your request is correctly formatted. Here is an example of how to structure the request:

{
"query": "Your query here",
"inputs": {},
"response_mode": "streaming", // or "blocking"
"user": "unique_user_id",
"conversation_id": "optional_conversation_id",
"files": [
{
"type": "image",
"transfer_method": "remote_url", // or "local_file"
"url": "http://example.com/image.png" // only if transfer_method is "remote_url"
// "upload_file_id": "file_id" // only if transfer_method is "local_file"
}
],
"auto_generate_name": true
}

Make sure to include the Authorization header with your API-Key:

Authorization: Bearer {API_KEY}

Ensure that the image URL is accessible if using remote_url, or provide a valid upload_file_id if using local_file. Additionally, verify that the model you are using supports the Vision capability, as the file input is only available when the model supports this feature. This should help avoid internal server errors [1][2][3].

If you encounter an internal server error, check the error response for details. Common errors include invalid_param, app_unavailable, provider_not_initialize, provider_quota_exceeded, model_currently_not_support, and completion_request_error. Ensure that your parameters are correct and that your model configuration is available and supports the required capabilities.

To continue talking to Dosu, mention @dosu.

Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

@Dosu api-key
@douxc
i am sure api-key is setted exactly, but access api faied.
curl -X POST 'http://localhost/v1/chat-messages'
--header 'Authorization: Bearer XXXXXX'
--header 'Content-Type: application/json'
--data-raw '{
"inputs": {},
"query": "What are the specs of the iPhone 13 Pro Max?",
"response_mode": "streaming",
"conversation_id": "",
"user": "abc-123",
"files": [
{
"type": "image",
"transfer_method": "remote_url",
"url": "https://cloud.dify.ai/logo/logo-site.png"
}
]
}'

@cqray1990 commented on GitHub (Feb 23, 2025): > To use the access API to pass an image for visual chat without encountering an internal server error, ensure that your request is correctly formatted. Here is an example of how to structure the request: > > { > "query": "Your query here", > "inputs": {}, > "response_mode": "streaming", // or "blocking" > "user": "unique_user_id", > "conversation_id": "optional_conversation_id", > "files": [ > { > "type": "image", > "transfer_method": "remote_url", // or "local_file" > "url": "http://example.com/image.png" // only if transfer_method is "remote_url" > // "upload_file_id": "file_id" // only if transfer_method is "local_file" > } > ], > "auto_generate_name": true > } > > Make sure to include the `Authorization` header with your `API-Key`: > > Authorization: Bearer {API_KEY} > > Ensure that the image URL is accessible if using `remote_url`, or provide a valid `upload_file_id` if using `local_file`. Additionally, verify that the model you are using supports the Vision capability, as the file input is only available when the model supports this feature. This should help avoid internal server errors [[1]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_chat.zh.mdx)[[2]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_chat.en.mdx)[[3]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_advanced_chat.en.mdx). > > If you encounter an internal server error, check the error response for details. Common errors include `invalid_param`, `app_unavailable`, `provider_not_initialize`, `provider_quota_exceeded`, `model_currently_not_support`, and `completion_request_error`. Ensure that your parameters are correct and that your model configuration is available and supports the required capabilities. > > _To continue talking to [Dosu](https://dosu.dev), mention [@dosu](https://github.com/dosu)._ > > Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=other) > To use the access API to pass an image for visual chat without encountering an internal server error, ensure that your request is correctly formatted. Here is an example of how to structure the request: > > { > "query": "Your query here", > "inputs": {}, > "response_mode": "streaming", // or "blocking" > "user": "unique_user_id", > "conversation_id": "optional_conversation_id", > "files": [ > { > "type": "image", > "transfer_method": "remote_url", // or "local_file" > "url": "http://example.com/image.png" // only if transfer_method is "remote_url" > // "upload_file_id": "file_id" // only if transfer_method is "local_file" > } > ], > "auto_generate_name": true > } > > Make sure to include the `Authorization` header with your `API-Key`: > > Authorization: Bearer {API_KEY} > > Ensure that the image URL is accessible if using `remote_url`, or provide a valid `upload_file_id` if using `local_file`. Additionally, verify that the model you are using supports the Vision capability, as the file input is only available when the model supports this feature. This should help avoid internal server errors [[1]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_chat.zh.mdx)[[2]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_chat.en.mdx)[[3]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_advanced_chat.en.mdx). > > If you encounter an internal server error, check the error response for details. Common errors include `invalid_param`, `app_unavailable`, `provider_not_initialize`, `provider_quota_exceeded`, `model_currently_not_support`, and `completion_request_error`. Ensure that your parameters are correct and that your model configuration is available and supports the required capabilities. > > _To continue talking to [Dosu](https://dosu.dev), mention [@dosu](https://github.com/dosu)._ > > Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/0c96aa7d-9158-4760-a81f-02e49cd8d281?feedback_type=other) @Dosu api-key @douxc i am sure api-key is setted exactly, but access api faied. curl -X POST 'http://localhost/v1/chat-messages' \ --header 'Authorization: Bearer XXXXXX' \ --header 'Content-Type: application/json' \ --data-raw '{ "inputs": {}, "query": "What are the specs of the iPhone 13 Pro Max?", "response_mode": "streaming", "conversation_id": "", "user": "abc-123", "files": [ { "type": "image", "transfer_method": "remote_url", "url": "https://cloud.dify.ai/logo/logo-site.png" } ] }'
yindo commented 2026-02-21 18:26:14 -05:00
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@dosubot[bot] commented on GitHub (Feb 23, 2025):

To resolve the 500 internal server error when using the Dify API with image files, ensure the following:

  1. Image Format and Size: Verify that the image URL points to a supported format, such as "jpg", "jpeg", "png", "webp", "gif", or "svg" [1]. Also, ensure the image size does not exceed 10 MB [2].

  2. Model Capability: Confirm that the LLM model you are using, such as 'qwen2-vl-7b', supports image processing capabilities. If the model does not support this feature, it could lead to errors.

  3. URL Accessibility: Make sure the image URL is publicly accessible and not restricted by any permissions or network issues.

If these checks are in place and the error persists, consider reviewing server logs for more detailed error messages that might indicate the root cause.

To continue talking to Dosu, mention @dosu.

Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

@dosubot[bot] commented on GitHub (Feb 23, 2025): <!-- Answer --> To resolve the 500 internal server error when using the Dify API with image files, ensure the following: 1. **Image Format and Size**: Verify that the image URL points to a supported format, such as "jpg", "jpeg", "png", "webp", "gif", or "svg" <sup>[[1]](https://github.com/langgenius/dify/blob/main/api/core/file/upload_file_parser.py)</sup>. Also, ensure the image size does not exceed 10 MB <sup>[[2]](https://github.com/langgenius/dify/blob/main/web/app/components/base/file-uploader/constants.ts)</sup>. 2. **Model Capability**: Confirm that the LLM model you are using, such as 'qwen2-vl-7b', supports image processing capabilities. If the model does not support this feature, it could lead to errors. 3. **URL Accessibility**: Make sure the image URL is publicly accessible and not restricted by any permissions or network issues. If these checks are in place and the error persists, consider reviewing server logs for more detailed error messages that might indicate the root cause. <!-- Dosu Comment Footer --> *To continue talking to [Dosu](https://dosu.dev), mention @dosu.* --- <sup>Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/2f6e6619-5f62-48e4-aac8-326e8e007f56?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/2f6e6619-5f62-48e4-aac8-326e8e007f56?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/2f6e6619-5f62-48e4-aac8-326e8e007f56?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/2f6e6619-5f62-48e4-aac8-326e8e007f56?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/2f6e6619-5f62-48e4-aac8-326e8e007f56?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/2f6e6619-5f62-48e4-aac8-326e8e007f56?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/2f6e6619-5f62-48e4-aac8-326e8e007f56?feedback_type=other)</sup>
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