Class: CSVLoader

document_loaders/fs/csv.CSVLoader

Loads a CSV file into a list of documents. Each document represents one row of the CSV file.

When column is not specified, each row is converted into a key/value pair with each key/value pair outputted to a new line in the document's pageContent.

Example

// CSV file: // id,html // 1,Corruption discovered at the core of the Banking Clan! // 2,Corruption discovered at the core of the Banking Clan!

const loader = new CSVLoader("path/to/file.csv"); const docs = await loader.load();

// docs[0].pageContent: // id: 1 // html: Corruption discovered at the core of the Banking Clan!

When column is specified, one document is created for each row, and the value of the specified column is used as the document's pageContent.

Example

// CSV file:
// id,html
// 1,<i>Corruption discovered at the core of the Banking Clan!</i>
// 2,<i>Corruption discovered at the core of the Banking Clan!</i>

const loader = new CSVLoader("path/to/file.csv", "html");
const docs = await loader.load();

// docs[0].pageContent:
// <i>Corruption discovered at the core of the Banking Clan!</i>

Hierarchy

• TextLoader

  ↳ CSVLoader

Constructors

constructor

• new CSVLoader(filePathOrBlob, column?)

Parameters

Name	Type
filePathOrBlob	string | Blob
column?	string

Overrides

TextLoader.constructor

Defined in

langchain/src/document_loaders/fs/csv.ts:39

Properties

column

• Optional column: string

Defined in

langchain/src/document_loaders/fs/csv.ts:39

---

filePathOrBlob

• filePathOrBlob: string | Blob

Inherited from

TextLoader.filePathOrBlob

Defined in

langchain/src/document_loaders/fs/text.ts:7

Methods

load

▸ load(): Promise<Document<Record<string, any>>[]>

Returns

Promise<Document<Record<string, any>>[]>

Inherited from

TextLoader.load

Defined in

langchain/src/document_loaders/fs/text.ts:15

---

loadAndSplit

▸ loadAndSplit(splitter?): Promise<Document<Record<string, any>>[]>

Parameters

Name	Type
splitter	TextSplitter

Returns

Promise<Document<Record<string, any>>[]>

Inherited from

TextLoader.loadAndSplit

Defined in

langchain/src/document_loaders/base.ts:15

---

parse

▸ Protected parse(raw): Promise<string[]>

Parameters

Name	Type
raw	string

Returns

Promise<string[]>

Overrides

TextLoader.parse

Defined in

langchain/src/document_loaders/fs/csv.ts:43

---

imports

▸ Static imports(): Promise<{ readFile: (path: PathLike | FileHandle, options?: null | {} & Abortable) => Promise<Buffer>(path: PathLike | FileHandle, options: {} & Abortable | BufferEncoding) => Promise<string>(path: PathLike | FileHandle, options?: null | BufferEncoding | ObjectEncodingOptions & Abortable & {}) => Promise<string | Buffer> }>

Returns

Promise<{ readFile: (path: PathLike | FileHandle, options?: null | {} & Abortable) => Promise<Buffer>(path: PathLike | FileHandle, options: {} & Abortable | BufferEncoding) => Promise<string>(path: PathLike | FileHandle, options?: null | BufferEncoding | ObjectEncodingOptions & Abortable & {}) => Promise<string | Buffer> }>

Inherited from

TextLoader.imports

Defined in

langchain/src/document_loaders/fs/text.ts:49