@langchain/community/dist/tools/gmail/get_message.js

Third-party integrations for LangChain.js

import { GmailBaseTool } from "./base.js";
import { GET_MESSAGE_DESCRIPTION } from "./descriptions.js";
import { z } from "zod/v3";
//#region src/tools/gmail/get_message.ts
const getMessageSchema = z.object({ messageId: z.string() });
var GmailGetMessage = class extends GmailBaseTool {
	name = "gmail_get_message";
	schema = getMessageSchema;
	description = GET_MESSAGE_DESCRIPTION;
	constructor(fields) {
		super(fields);
	}
	async _call(arg) {
		const { messageId } = arg;
		const { data } = await (await this.getGmailClient()).users.messages.get({
			userId: "me",
			format: "full",
			id: messageId
		});
		if (!data) throw new Error("No data returned from Gmail");
		const { payload } = data;
		if (!payload) throw new Error("No payload returned from Gmail");
		const { headers } = payload;
		if (!headers) throw new Error("No headers returned from Gmail");
		const { subject, sender, body } = this.parseHeaderAndBody(payload);
		if (!subject) throw new Error("No subject returned from Gmail");
		if (!body) throw new Error("No body returned from Gmail");
		if (!sender) throw new Error("No from returned from Gmail");
		const to = headers.find((header) => header.name === "To");
		if (!to) throw new Error("No to returned from Gmail");
		const date = headers.find((header) => header.name === "Date");
		if (!date) throw new Error("No date returned from Gmail");
		const messageIdHeader = headers.find((header) => header.name === "Message-ID");
		if (!messageIdHeader) throw new Error("No message id returned from Gmail");
		return `Result for the prompt ${messageId} \n${JSON.stringify({
			subject: subject.value,
			body,
			from: sender.value,
			to: to.value,
			date: date.value,
			messageId: messageIdHeader.value
		})}`;
	}
};
//#endregion
export { GmailGetMessage };

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