@maistik/nuxt-pdf/dist/runtime/server/api/pdf.post.js

A Nuxt 3 & 4 module for server-side PDF generation using Handlebars templates

import { defineEventHandler, readBody, setHeader, createError, isError } from "h3";
import { useRuntimeConfig } from "#imports";
import { customHelpers } from "#pdf-custom-helpers";
import { compilePdfComponent } from "../../utils/compiler.js";
import { createPdfProvider } from "../../utils/providers.js";
export default defineEventHandler(async (event) => {
  const config = useRuntimeConfig();
  const body = await readBody(event);
  const template = body?.template;
  const ctx = body?.ctx;
  if (typeof template !== "string" || template.length === 0) {
    throw createError({
      statusCode: 400,
      statusMessage: 'Missing or invalid "template"'
    });
  }
  if (!ctx || typeof ctx !== "object") {
    throw createError({
      statusCode: 400,
      statusMessage: 'Missing or invalid "ctx"'
    });
  }
  const templateSources = config.pdf.templateSources;
  if (!Object.prototype.hasOwnProperty.call(templateSources, template)) {
    throw createError({
      statusCode: 404,
      statusMessage: `Template "${template}" not found`
    });
  }
  const { data, options = {}, locale } = ctx;
  const mergedOptions = { ...config.pdf.defaultOptions, ...options };
  const messages = config.pdf.enableI18n ? config.pdf.i18nMessages[locale || config.pdf.defaultLocale] || {} : {};
  try {
    const html = compilePdfComponent(
      template,
      { data, options: mergedOptions, locale },
      messages,
      templateSources,
      config.pdf.partialSources,
      customHelpers
    );
    const provider = createPdfProvider(config.pdf.provider, config.pdf.providers);
    const pdfBuffer = await provider.generatePdf(html, mergedOptions);
    setHeader(event, "Content-Type", "application/pdf");
    setHeader(event, "Content-Length", pdfBuffer.length.toString());
    return pdfBuffer;
  } catch (error) {
    console.error("PDF generation error:", error);
    if (isError(error)) {
      throw error;
    }
    throw createError({
      statusCode: 500,
      statusMessage: "Failed to generate PDF"
    });
  }
});