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fix(Basic LLM Chain Node): Use correct mimetype for binary data (#12978)

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jeanpaul
2025-02-07 09:49:11 +01:00
committed by GitHub
parent 9e4e1ca1f4
commit 2b1eb049f2
3 changed files with 56 additions and 13 deletions
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34
packages/@n8n/nodes-langchain/nodes/chains/ChainLLM/ChainLlm.node.ts
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@@ -34,6 +34,7 @@ import { getOptionalOutputParsers } from '@utils/output_parsers/N8nOutputParser'
import { getTemplateNoticeField } from '@utils/sharedFields';
import { getTracingConfig } from '@utils/tracing';
import { dataUriFromImageData, UnsupportedMimeTypeError } from './utils';
import {
getCustomErrorMessage as getCustomOpenAiErrorMessage,
isOpenAiError,
@@ -88,21 +89,28 @@ async function getImageMessage(
NodeConnectionType.AiLanguageModel,
0,
)) as BaseLanguageModel;
const dataURI = `data:image/jpeg;base64,${bufferData.toString('base64')}`;
const directUriModels = [ChatGoogleGenerativeAI, ChatOllama];
const imageUrl = directUriModels.some((i) => model instanceof i)
? dataURI
: { url: dataURI, detail };
try {
const dataURI = dataUriFromImageData(binaryData, bufferData);
return new HumanMessage({
content: [
{
type: 'image_url',
image_url: imageUrl,
},
],
});
const directUriModels = [ChatGoogleGenerativeAI, ChatOllama];
const imageUrl = directUriModels.some((i) => model instanceof i)
? dataURI
: { url: dataURI, detail };
return new HumanMessage({
content: [
{
type: 'image_url',
image_url: imageUrl,
},
],
});
} catch (error) {
if (error instanceof UnsupportedMimeTypeError)
throw new NodeOperationError(context.getNode(), error.message);
throw error;
}
}
async function getChainPromptTemplate(