Genkit JS API reference
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    Class Document

    Document represents document content along with its metadata that can be embedded, indexed or retrieved. Each document can contain multiple parts (for example text and an image)

    Hierarchy (View Summary)

    Implements

    Index

    Constructors

    constructor

    Properties

    content metadata?

    Accessors

    data dataType media text

    Methods

    getEmbeddingDocuments toJSON fromData fromMedia fromParts fromText

    Constructors

    • Parameters

      • data: {
            content: (
                | {
                    custom?: Record<string, unknown>;
                    data?: unknown;
                    media?: undefined;
                    metadata?: Record<string, unknown>;
                    reasoning?: undefined;
                    resource?: undefined;
                    text: string;
                    toolRequest?: undefined;
                    toolResponse?: undefined;
                }
                | {
                    custom?: Record<string, unknown>;
                    data?: unknown;
                    media: { contentType?: string; url: string };
                    metadata?: Record<string, unknown>;
                    reasoning?: undefined;
                    resource?: undefined;
                    text?: undefined;
                    toolRequest?: undefined;
                    toolResponse?: undefined;
                }
                | {
                    custom?: Record<string, unknown>;
                    data?: unknown;
                    media?: undefined;
                    metadata?: Record<string, unknown>;
                    reasoning?: undefined;
                    resource?: undefined;
                    text?: undefined;
                    toolRequest: {
                        input?: unknown;
                        name: string;
                        partial?: boolean;
                        ref?: string;
                    };
                    toolResponse?: undefined;
                }
                | {
                    custom?: Record<string, unknown>;
                    data?: unknown;
                    media?: undefined;
                    metadata?: Record<string, unknown>;
                    reasoning?: undefined;
                    resource?: undefined;
                    text?: undefined;
                    toolRequest?: undefined;
                    toolResponse: { name: string; output?: unknown; ref?: string } & {
                        content?: (
                            | {
                                custom?: (...)
                                | (...);
                                data?: unknown;
                                media?: undefined;
                                metadata?: (...) | (...);
                                reasoning?: undefined;
                                resource?: undefined;
                                text: string;
                                toolRequest?: undefined;
                                toolResponse?: undefined;
                            }
                            | {
                                custom?: (...)
                                | (...);
                                data?: unknown;
                                media: { contentType?: ...; url: ... };
                                metadata?: (...) | (...);
                                reasoning?: undefined;
                                resource?: undefined;
                                text?: undefined;
                                toolRequest?: undefined;
                                toolResponse?: undefined;
                            }
                            | {
                                custom?: (...)
                                | (...);
                                data?: unknown;
                                media?: undefined;
                                metadata?: (...) | (...);
                                reasoning?: undefined;
                                resource?: undefined;
                                text?: undefined;
                                toolRequest: { input?: ...; name: ...; partial?: ...; ref?: ... };
                                toolResponse?: undefined;
                            }
                            | {
                                custom?: (...)
                                | (...);
                                data?: unknown;
                                media?: undefined;
                                metadata?: (...) | (...);
                                reasoning?: undefined;
                                resource?: undefined;
                                text?: undefined;
                                toolRequest?: undefined;
                                toolResponse: (...) & (...);
                            }
                            | {
                                custom?: (...)
                                | (...);
                                data?: unknown;
                                media?: undefined;
                                metadata?: (...) | (...);
                                reasoning?: undefined;
                                resource?: undefined;
                                text?: undefined;
                                toolRequest?: undefined;
                                toolResponse?: undefined;
                            }
                            | {
                                custom: Record<(...), (...)>;
                                data?: unknown;
                                media?: undefined;
                                metadata?: (...) | (...);
                                reasoning?: undefined;
                                resource?: undefined;
                                text?: undefined;
                                toolRequest?: undefined;
                                toolResponse?: undefined;
                            }
                            | {
                                custom?: (...)
                                | (...);
                                data?: unknown;
                                media?: undefined;
                                metadata?: (...) | (...);
                                reasoning: string;
                                resource?: undefined;
                                text?: undefined;
                                toolRequest?: undefined;
                                toolResponse?: undefined;
                            }
                            | {
                                custom?: (...)
                                | (...);
                                data?: unknown;
                                media?: undefined;
                                metadata?: (...) | (...);
                                reasoning?: undefined;
                                resource: { uri: ... };
                                text?: undefined;
                                toolRequest?: undefined;
                                toolResponse?: undefined;
                            }
                        )[];
                    };
                }
                | {
                    custom?: Record<string, unknown>;
                    data?: unknown;
                    media?: undefined;
                    metadata?: Record<string, unknown>;
                    reasoning?: undefined;
                    resource?: undefined;
                    text?: undefined;
                    toolRequest?: undefined;
                    toolResponse?: undefined;
                }
                | {
                    custom: Record<string, any>;
                    data?: unknown;
                    media?: undefined;
                    metadata?: Record<string, unknown>;
                    reasoning?: undefined;
                    resource?: undefined;
                    text?: undefined;
                    toolRequest?: undefined;
                    toolResponse?: undefined;
                }
                | {
                    custom?: Record<string, unknown>;
                    data?: unknown;
                    media?: undefined;
                    metadata?: Record<string, unknown>;
                    reasoning: string;
                    resource?: undefined;
                    text?: undefined;
                    toolRequest?: undefined;
                    toolResponse?: undefined;
                }
                | {
                    custom?: Record<string, unknown>;
                    data?: unknown;
                    media?: undefined;
                    metadata?: Record<string, unknown>;
                    reasoning?: undefined;
                    resource: { uri: string };
                    text?: undefined;
                    toolRequest?: undefined;
                    toolResponse?: undefined;
                }
            )[];
            metadata?: Record<string, any>;
        }

      Returns Document

    Properties

    content

    content: (
        | {
            custom?: Record<string, unknown>;
            data?: unknown;
            media?: undefined;
            metadata?: Record<string, unknown>;
            reasoning?: undefined;
            resource?: undefined;
            text: string;
            toolRequest?: undefined;
            toolResponse?: undefined;
        }
        | {
            custom?: Record<string, unknown>;
            data?: unknown;
            media: { contentType?: string; url: string };
            metadata?: Record<string, unknown>;
            reasoning?: undefined;
            resource?: undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
        }
        | {
            custom?: Record<string, unknown>;
            data?: unknown;
            media?: undefined;
            metadata?: Record<string, unknown>;
            reasoning?: undefined;
            resource?: undefined;
            text?: undefined;
            toolRequest: {
                input?: unknown;
                name: string;
                partial?: boolean;
                ref?: string;
            };
            toolResponse?: undefined;
        }
        | {
            custom?: Record<string, unknown>;
            data?: unknown;
            media?: undefined;
            metadata?: Record<string, unknown>;
            reasoning?: undefined;
            resource?: undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse: { name: string; output?: unknown; ref?: string } & {
                content?: ({ text: string; custom?: Record<string, unknown> | undefined; metadata?: Record<string, unknown> | undefined; media?: undefined; toolRequest?: undefined; toolResponse?: undefined; data?: unknown; reasoning?: undefined; resource?: undefined; } | ... 6 more ... | { ...; })[];
            };
        }
        | {
            custom?: Record<string, unknown>;
            data?: unknown;
            media?: undefined;
            metadata?: Record<string, unknown>;
            reasoning?: undefined;
            resource?: undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
        }
        | {
            custom: Record<string, any>;
            data?: unknown;
            media?: undefined;
            metadata?: Record<string, unknown>;
            reasoning?: undefined;
            resource?: undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
        }
        | {
            custom?: Record<string, unknown>;
            data?: unknown;
            media?: undefined;
            metadata?: Record<string, unknown>;
            reasoning: string;
            resource?: undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
        }
        | {
            custom?: Record<string, unknown>;
            data?: unknown;
            media?: undefined;
            metadata?: Record<string, unknown>;
            reasoning?: undefined;
            resource: { uri: string };
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
        }
    )[]
    metadata?: Record<string, any>

    Accessors

    • get data(): string

      Gets the first item in the document. Either text or media url.

      Returns string

    • get dataType(): string | undefined

      Gets the contentType of the data that is returned by data()

      Returns string | undefined

    • get media(): { contentType?: string; url: string }[]

      Media array getter.

      Returns { contentType?: string; url: string }[]

      the array of media parts.

    text

    • get text(): string

      Concatenates all text parts present in the document with no delimiter.

      Returns string

      A string of all concatenated text parts.

    Methods

    • Embedders may return multiple embeddings for a single document. But storage still requires a 1:1 relationship. So we create an array of Documents from a single document - one per embedding.

      Parameters

      • embeddings: { embedding: number[]; metadata?: Record<string, unknown> }[]

        The embeddings to create the documents from.

      Returns Document[]

      an array of documents based on this document and the embeddings.

    • Returns {
          content: (
              | {
                  custom?: Record<string, unknown>;
                  data?: unknown;
                  media?: undefined;
                  metadata?: Record<string, unknown>;
                  reasoning?: undefined;
                  resource?: undefined;
                  text: string;
                  toolRequest?: undefined;
                  toolResponse?: undefined;
              }
              | {
                  custom?: Record<string, unknown>;
                  data?: unknown;
                  media: { contentType?: string; url: string };
                  metadata?: Record<string, unknown>;
                  reasoning?: undefined;
                  resource?: undefined;
                  text?: undefined;
                  toolRequest?: undefined;
                  toolResponse?: undefined;
              }
              | {
                  custom?: Record<string, unknown>;
                  data?: unknown;
                  media?: undefined;
                  metadata?: Record<string, unknown>;
                  reasoning?: undefined;
                  resource?: undefined;
                  text?: undefined;
                  toolRequest: {
                      input?: unknown;
                      name: string;
                      partial?: boolean;
                      ref?: string;
                  };
                  toolResponse?: undefined;
              }
              | {
                  custom?: Record<string, unknown>;
                  data?: unknown;
                  media?: undefined;
                  metadata?: Record<string, unknown>;
                  reasoning?: undefined;
                  resource?: undefined;
                  text?: undefined;
                  toolRequest?: undefined;
                  toolResponse: { name: string; output?: unknown; ref?: string } & {
                      content?: (
                          | {
                              custom?: (...)
                              | (...);
                              data?: unknown;
                              media?: undefined;
                              metadata?: (...) | (...);
                              reasoning?: undefined;
                              resource?: undefined;
                              text: string;
                              toolRequest?: undefined;
                              toolResponse?: undefined;
                          }
                          | {
                              custom?: (...)
                              | (...);
                              data?: unknown;
                              media: { contentType?: ...; url: ... };
                              metadata?: (...) | (...);
                              reasoning?: undefined;
                              resource?: undefined;
                              text?: undefined;
                              toolRequest?: undefined;
                              toolResponse?: undefined;
                          }
                          | {
                              custom?: (...)
                              | (...);
                              data?: unknown;
                              media?: undefined;
                              metadata?: (...) | (...);
                              reasoning?: undefined;
                              resource?: undefined;
                              text?: undefined;
                              toolRequest: { input?: ...; name: ...; partial?: ...; ref?: ... };
                              toolResponse?: undefined;
                          }
                          | {
                              custom?: (...)
                              | (...);
                              data?: unknown;
                              media?: undefined;
                              metadata?: (...) | (...);
                              reasoning?: undefined;
                              resource?: undefined;
                              text?: undefined;
                              toolRequest?: undefined;
                              toolResponse: (...) & (...);
                          }
                          | {
                              custom?: (...)
                              | (...);
                              data?: unknown;
                              media?: undefined;
                              metadata?: (...) | (...);
                              reasoning?: undefined;
                              resource?: undefined;
                              text?: undefined;
                              toolRequest?: undefined;
                              toolResponse?: undefined;
                          }
                          | {
                              custom: Record<(...), (...)>;
                              data?: unknown;
                              media?: undefined;
                              metadata?: (...) | (...);
                              reasoning?: undefined;
                              resource?: undefined;
                              text?: undefined;
                              toolRequest?: undefined;
                              toolResponse?: undefined;
                          }
                          | {
                              custom?: (...)
                              | (...);
                              data?: unknown;
                              media?: undefined;
                              metadata?: (...) | (...);
                              reasoning: string;
                              resource?: undefined;
                              text?: undefined;
                              toolRequest?: undefined;
                              toolResponse?: undefined;
                          }
                          | {
                              custom?: (...)
                              | (...);
                              data?: unknown;
                              media?: undefined;
                              metadata?: (...) | (...);
                              reasoning?: undefined;
                              resource: { uri: ... };
                              text?: undefined;
                              toolRequest?: undefined;
                              toolResponse?: undefined;
                          }
                      )[];
                  };
              }
              | {
                  custom?: Record<string, unknown>;
                  data?: unknown;
                  media?: undefined;
                  metadata?: Record<string, unknown>;
                  reasoning?: undefined;
                  resource?: undefined;
                  text?: undefined;
                  toolRequest?: undefined;
                  toolResponse?: undefined;
              }
              | {
                  custom: Record<string, any>;
                  data?: unknown;
                  media?: undefined;
                  metadata?: Record<string, unknown>;
                  reasoning?: undefined;
                  resource?: undefined;
                  text?: undefined;
                  toolRequest?: undefined;
                  toolResponse?: undefined;
              }
              | {
                  custom?: Record<string, unknown>;
                  data?: unknown;
                  media?: undefined;
                  metadata?: Record<string, unknown>;
                  reasoning: string;
                  resource?: undefined;
                  text?: undefined;
                  toolRequest?: undefined;
                  toolResponse?: undefined;
              }
              | {
                  custom?: Record<string, unknown>;
                  data?: unknown;
                  media?: undefined;
                  metadata?: Record<string, unknown>;
                  reasoning?: undefined;
                  resource: { uri: string };
                  text?: undefined;
                  toolRequest?: undefined;
                  toolResponse?: undefined;
              }
          )[];
          metadata?: Record<string, any>;
      }

    • Parameters

      • data: string
      • OptionaldataType: string
      • Optionalmetadata: Record<string, unknown>

      Returns Document

    • Parameters

      • url: string
      • OptionalcontentType: string
      • Optionalmetadata: Record<string, unknown>

      Returns Document

    • Parameters

      • content: (
            | {
                custom?: Record<string, unknown>;
                data?: unknown;
                media?: undefined;
                metadata?: Record<string, unknown>;
                reasoning?: undefined;
                resource?: undefined;
                text: string;
                toolRequest?: undefined;
                toolResponse?: undefined;
            }
            | {
                custom?: Record<string, unknown>;
                data?: unknown;
                media: { contentType?: string; url: string };
                metadata?: Record<string, unknown>;
                reasoning?: undefined;
                resource?: undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
            }
            | {
                custom?: Record<string, unknown>;
                data?: unknown;
                media?: undefined;
                metadata?: Record<string, unknown>;
                reasoning?: undefined;
                resource?: undefined;
                text?: undefined;
                toolRequest: {
                    input?: unknown;
                    name: string;
                    partial?: boolean;
                    ref?: string;
                };
                toolResponse?: undefined;
            }
            | {
                custom?: Record<string, unknown>;
                data?: unknown;
                media?: undefined;
                metadata?: Record<string, unknown>;
                reasoning?: undefined;
                resource?: undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse: { name: string; output?: unknown; ref?: string } & {
                    content?: ({ text: string; custom?: Record<string, unknown> | undefined; metadata?: Record<string, unknown> | undefined; media?: undefined; toolRequest?: undefined; toolResponse?: undefined; data?: unknown; reasoning?: undefined; resource?: undefined; } | ... 6 more ... | { ...; })[];
                };
            }
            | {
                custom?: Record<string, unknown>;
                data?: unknown;
                media?: undefined;
                metadata?: Record<string, unknown>;
                reasoning?: undefined;
                resource?: undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
            }
            | {
                custom: Record<string, any>;
                data?: unknown;
                media?: undefined;
                metadata?: Record<string, unknown>;
                reasoning?: undefined;
                resource?: undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
            }
            | {
                custom?: Record<string, unknown>;
                data?: unknown;
                media?: undefined;
                metadata?: Record<string, unknown>;
                reasoning: string;
                resource?: undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
            }
            | {
                custom?: Record<string, unknown>;
                data?: unknown;
                media?: undefined;
                metadata?: Record<string, unknown>;
                reasoning?: undefined;
                resource: { uri: string };
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
            }
        )[]
      • Optionalmetadata: Record<string, any>

      Returns Document

    • Parameters

      • text: string
      • Optionalmetadata: Record<string, any>

      Returns Document

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