50 lines
1.5 KiB
TypeScript
50 lines
1.5 KiB
TypeScript
// Copyright IBM Corp. 2016. All Rights Reserved.
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// Node module: strong-error-handler
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// This file is licensed under the MIT License.
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// License text available at https://opensource.org/licenses/MIT
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import ejs from 'ejs';
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import type Express from 'express';
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import fs from 'fs';
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import path from 'path';
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const assetDir = path.resolve(__dirname, '../views');
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const compiledTemplates = {
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// loading default template and stylesheet
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default: loadDefaultTemplates(),
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};
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export function sendHtml(
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res: Express.Response,
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data: ejs.Data['data'],
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options: ejs.Data['options'],
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) {
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const toRender = {options, data};
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// TODO: ability to call non-default template functions from options
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const body = compiledTemplates.default(toRender);
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sendResponse(res, body);
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}
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/**
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* Compile and cache the file with the `filename` key in options
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*
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* @param filepath (description)
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* @returns Render function with signature fn(data);
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*/
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function compileTemplate(filepath: string): ejs.TemplateFunction {
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const options = {cache: true, filename: filepath};
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const fileContent = fs.readFileSync(filepath, 'utf8');
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return ejs.compile(fileContent, options);
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}
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// loads and cache default error templates
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function loadDefaultTemplates() {
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const defaultTemplate = path.resolve(assetDir, 'default-error.ejs');
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return compileTemplate(defaultTemplate);
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}
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function sendResponse(res: Express.Response, body: string) {
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res.setHeader('Content-Type', 'text/html; charset=utf-8');
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res.end(body);
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}
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