#how to send file with webhook api

7 messages · Page 1 of 1 (latest)

severe jasper 
import { fetch } from "bun";
import { CronJobParams } from "cron";
import FormData from "form-data";
import { createReadStream, existsSync } from "node:fs";
import { basename } from "node:path";

export class Webhook {
    private webhookPath: string;
    private crontab: CronJobParams["cronTime"];

    public constructor(webhookPath: string, crontab: CronJobParams["cronTime"]) {
        this.webhookPath = webhookPath;
        this.crontab = crontab;
    }

    public async sendWebhook(filePath: string): Promise<boolean> {
        if (!existsSync(filePath)) {
            throw new Error(`File ${filePath} does not exist`);
        }

        console.log(`[${new Date().toString().split(" ", 5).join(" ")}] Sending webhook`);

        const content = this.crontab ? `Auto Backup crontab \`${this.crontab}\`` : `Manual Backup`;
        const fileName = basename(filePath);
        const fileBuffer = createReadStream(filePath);

        const form = new FormData();
        form.append("payload_json", JSON.stringify({ content: content }));
        form.append("file", fileBuffer, { filename: fileName });

        const response = await fetch(this.webhookPath, {
            method: "POST",
            headers: {
                "Content-Type": `multipart/form-data; boundary=${form.getBoundary()}`
            },
            body: form,
        })

        console.log(`[${new Date().toString().split(" ", 5).join(" ")}] Webhook response: ${response.status}`);

        if (response.status === 200) {
            return true;
        } else {
            console.error(await response.text());
            return false;
        }
    }
}

bun 1.2.8

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willow robin

createReadStream returns a ReadStream, not a Buffer

What you want is readFile

severe jasper
willow robin

Then you‘re still using it wrong. readFile is either promise based or callback based. There’s also the Sync variant.

raw lake

Show the updated code with what Qjuh suggested