@langchain/anthropic/dist/utils/content.cjs.map

Anthropic integrations for LangChain.js

{"version":3,"file":"content.cjs","names":[],"sources":["../../src/utils/content.ts"],"sourcesContent":["import type Anthropic from \"@anthropic-ai/sdk\";\nimport {\n  parseBase64DataUrl,\n  type StandardContentBlockConverter,\n} from \"@langchain/core/messages\";\n\nexport function _isAnthropicThinkingBlock(\n  block: unknown\n): block is Anthropic.Messages.ThinkingBlockParam {\n  return (\n    typeof block === \"object\" &&\n    block !== null &&\n    \"type\" in block &&\n    block.type === \"thinking\"\n  );\n}\n\nexport function _isAnthropicRedactedThinkingBlock(\n  block: unknown\n): block is Anthropic.Messages.RedactedThinkingBlockParam {\n  return (\n    typeof block === \"object\" &&\n    block !== null &&\n    \"type\" in block &&\n    block.type === \"redacted_thinking\"\n  );\n}\n\nexport function _isAnthropicCompactionBlock(\n  block: unknown\n): block is Anthropic.Beta.BetaCompactionBlockParam {\n  return (\n    typeof block === \"object\" &&\n    block !== null &&\n    \"type\" in block &&\n    block.type === \"compaction\"\n  );\n}\n\nexport function _isAnthropicSearchResultBlock(\n  block: unknown\n): block is Anthropic.Beta.BetaSearchResultBlockParam {\n  return (\n    typeof block === \"object\" &&\n    block !== null &&\n    \"type\" in block &&\n    block.type === \"search_result\"\n  );\n}\n\nexport function _isAnthropicImageBlockParam(\n  block: unknown\n): block is Anthropic.Messages.ImageBlockParam {\n  if (typeof block !== \"object\" || block == null) {\n    return false;\n  }\n  if (!(\"type\" in block) || block.type !== \"image\") {\n    return false;\n  }\n\n  if (\n    !(\"source\" in block) ||\n    typeof block.source !== \"object\" ||\n    block.source == null\n  ) {\n    return false;\n  }\n\n  if (!(\"type\" in block.source)) {\n    return false;\n  }\n\n  if (block.source.type === \"base64\") {\n    if (!(\"media_type\" in block.source)) {\n      return false;\n    }\n\n    if (typeof block.source.media_type !== \"string\") {\n      return false;\n    }\n\n    if (!(\"data\" in block.source)) {\n      return false;\n    }\n\n    if (typeof block.source.data !== \"string\") {\n      return false;\n    }\n\n    return true;\n  }\n\n  if (block.source.type === \"url\") {\n    if (!(\"url\" in block.source)) {\n      return false;\n    }\n\n    if (typeof block.source.url !== \"string\") {\n      return false;\n    }\n\n    return true;\n  }\n\n  return false;\n}\n\nexport const standardContentBlockConverter: StandardContentBlockConverter<{\n  text: Anthropic.Messages.TextBlockParam;\n  image: Anthropic.Messages.ImageBlockParam;\n  file: Anthropic.Messages.DocumentBlockParam;\n}> = {\n  providerName: \"anthropic\",\n\n  fromStandardTextBlock(block): Anthropic.Messages.TextBlockParam {\n    return {\n      type: \"text\",\n      text: block.text,\n      ...(\"citations\" in (block.metadata ?? {})\n        ? { citations: block.metadata!.citations }\n        : {}),\n      ...(\"cache_control\" in (block.metadata ?? {})\n        ? { cache_control: block.metadata!.cache_control }\n        : {}),\n    } as Anthropic.Messages.TextBlockParam;\n  },\n\n  fromStandardImageBlock(block): Anthropic.Messages.ImageBlockParam {\n    if (block.source_type === \"url\") {\n      const data = parseBase64DataUrl({\n        dataUrl: block.url,\n        asTypedArray: false,\n      });\n      if (data) {\n        return {\n          type: \"image\",\n          source: {\n            type: \"base64\",\n            data: data.data,\n            media_type: data.mime_type,\n          },\n          ...(\"cache_control\" in (block.metadata ?? {})\n            ? { cache_control: block.metadata!.cache_control }\n            : {}),\n        } as Anthropic.Messages.ImageBlockParam;\n      } else {\n        return {\n          type: \"image\",\n          source: {\n            type: \"url\",\n            url: block.url,\n          },\n          ...(\"cache_control\" in (block.metadata ?? {})\n            ? { cache_control: block.metadata!.cache_control }\n            : {}),\n        } as Anthropic.Messages.ImageBlockParam;\n      }\n    } else {\n      if (block.source_type === \"base64\") {\n        return {\n          type: \"image\",\n          source: {\n            type: \"base64\",\n            data: block.data,\n            media_type: block.mime_type ?? \"\",\n          },\n          ...(\"cache_control\" in (block.metadata ?? {})\n            ? { cache_control: block.metadata!.cache_control }\n            : {}),\n        } as Anthropic.Messages.ImageBlockParam;\n      } else {\n        throw new Error(`Unsupported image source type: ${block.source_type}`);\n      }\n    }\n  },\n\n  fromStandardFileBlock(block): Anthropic.Messages.DocumentBlockParam {\n    const mime_type = (block.mime_type ?? \"\").split(\";\")[0];\n\n    if (block.source_type === \"url\") {\n      if (mime_type === \"application/pdf\" || mime_type === \"\") {\n        return {\n          type: \"document\",\n          source: {\n            type: \"url\",\n            url: block.url,\n          },\n          ...(\"cache_control\" in (block.metadata ?? {})\n            ? { cache_control: block.metadata!.cache_control }\n            : {}),\n          ...(\"citations\" in (block.metadata ?? {})\n            ? { citations: block.metadata!.citations }\n            : {}),\n          ...(\"context\" in (block.metadata ?? {})\n            ? { context: block.metadata!.context }\n            : {}),\n          ...(\"title\" in (block.metadata ?? {})\n            ? { title: block.metadata!.title }\n            : {}),\n        } as Anthropic.Messages.DocumentBlockParam;\n      }\n      throw new Error(\n        `Unsupported file mime type for file url source: ${block.mime_type}`\n      );\n    } else if (block.source_type === \"text\") {\n      if (mime_type === \"text/plain\" || mime_type === \"\") {\n        return {\n          type: \"document\",\n          source: {\n            type: \"text\",\n            data: block.text,\n            media_type: block.mime_type ?? \"\",\n          },\n          ...(\"cache_control\" in (block.metadata ?? {})\n            ? { cache_control: block.metadata!.cache_control }\n            : {}),\n          ...(\"citations\" in (block.metadata ?? {})\n            ? { citations: block.metadata!.citations }\n            : {}),\n          ...(\"context\" in (block.metadata ?? {})\n            ? { context: block.metadata!.context }\n            : {}),\n          ...(\"title\" in (block.metadata ?? {})\n            ? { title: block.metadata!.title }\n            : {}),\n        } as Anthropic.Messages.DocumentBlockParam;\n      } else {\n        throw new Error(\n          `Unsupported file mime type for file text source: ${block.mime_type}`\n        );\n      }\n    } else if (block.source_type === \"base64\") {\n      if (mime_type === \"application/pdf\" || mime_type === \"\") {\n        return {\n          type: \"document\",\n          source: {\n            type: \"base64\",\n            data: block.data,\n            media_type: \"application/pdf\",\n          },\n          ...(\"cache_control\" in (block.metadata ?? {})\n            ? { cache_control: block.metadata!.cache_control }\n            : {}),\n          ...(\"citations\" in (block.metadata ?? {})\n            ? { citations: block.metadata!.citations }\n            : {}),\n          ...(\"context\" in (block.metadata ?? {})\n            ? { context: block.metadata!.context }\n            : {}),\n          ...(\"title\" in (block.metadata ?? {})\n            ? { title: block.metadata!.title }\n            : {}),\n        } as Anthropic.Messages.DocumentBlockParam;\n      } else if (\n        [\"image/jpeg\", \"image/png\", \"image/gif\", \"image/webp\"].includes(\n          mime_type\n        )\n      ) {\n        return {\n          type: \"document\",\n          source: {\n            type: \"content\",\n            content: [\n              {\n                type: \"image\",\n                source: {\n                  type: \"base64\",\n                  data: block.data,\n                  media_type: mime_type as\n                    | \"image/jpeg\"\n                    | \"image/png\"\n                    | \"image/gif\"\n                    | \"image/webp\",\n                },\n              },\n            ],\n          },\n          ...(\"cache_control\" in (block.metadata ?? 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