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app.js
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const bodyParser = require("body-parser");
const express = require("express");
const https = require("https");
const port = 3000;
const app = express();
/* Serve static files such as images, CSS files, and JavaScript files */
/* public: Nome do arquivo estático */
app.use(express.static("public"));
/* Uso do body-parser através do express */
app.use(bodyParser.urlencoded({ extended: true }));
app.get("/", function (req, res) {
res.sendFile(__dirname + "/index.html");
});
app.post("/", function (req, res) {
/* Varíaveis configuradas como const pois não irão midar: Boa prática!!! */
const firstName = req.body.fName;
const lastName = req.body.lName;
const email = req.body.email;
/* Variável criada para: 1. Capturar os dados do form, 2. Transformar em JSON e 3. Enviar para API MailChimp */
const data = {
/* Infos extraídas em: https://mailchimp.com/developer/marketing/api/list-members/add-member-to-list/ */
members: [
{
email_address: email,
status: "subscribed",
merge_fields: {
/* Visto em: https://us9.admin.mailchimp.com/lists/settings/merge-tags?id=1036289 */
FNAME: firstName,
LNAME: lastName
}
}
]
}
/* Transforma os dados em string JSON */
const jsonData = JSON.stringify(data);
const url = "https://us9.api.mailchimp.com/3.0/lists/a582276793";
/* Options para o método request: https://nodejs.org/api/http.html#httprequestoptions-callback */
const options = {
method: "POST",
/* https://mailchimp.com/developer/marketing/guides/quick-start/#generate-your-api-key. Ver Make your first API call: curl -sS --user */
/* Mailchimp exige autenticação. Sintaxe: <qualquer coisa>:chaveAPI */
auth: "guilherme1:bd4d5bec6c6c59291027a158053acb6e-us9"
}
/* https://nodejs.org/api/https.html#httpsrequesturl-options-callback */
const request = https.request(url, options, function(response) {
/* Resposta do status do servidor mailchimp em relação a requisição */
let result = response.statusCode;
if(result === 200) {
res.sendFile(__dirname + "/success.html");
} else {
res.sendFile(__dirname + "/failure.html");
}
})
/* Envia os dados obtidos do form para o servidor Mailchimp */
request.write(jsonData);
request.end();
});
app.post("/home", function (req, res) {
/* Redireciona o usuário para a home */
res.redirect("/");
});
/* process.env.PORT: Porta do servidor que o Heroku escolher para o app. Variável dinâmica para definição da porta. */
/* Ou escuta a porta 3000 para rodar local */
app.listen(process.env.PORT || 3000, function () {
console.log("Server is running on port: " + port);
});
/* Mailchimp Endpoint */
/* https://us9.api.mailchimp.com/3.0/ */
/* Server Prefix || Data Center {dc} */
/* us9 */
/* API Key */
/* bd4d5bec6c6c59291027a158053acb6e-us9 */
/* Mailchimp Audience/List ID */
/* a582276793 */