publishable vs secret keys

const pub = require("stripe")(process.env.PK_FOO_BAR); const sec = require("stripe")(process.env.SK_FOO_BAR); // a.1) client const pmA = await pub.paymentMethods.create({ type: "card", card: { number: "4242 4242 4242 4242", exp_month: 2, exp_year: 2024, cvc: 424 } }) // a.2) server const piA = await sec.paymentIntents.create({ amount: 4242, currency: "eur", confirmation_method: "manual", setup_future_usage: "off_session", payment_method: pmA.id, confirm: true }) console.log(`piA: ${piA.status}`, piA) /*** or... ***/ // b.1) server const piB1 = await sec.paymentIntents.create({ amount: 4242, currency: "eur", confirmation_method: "automatic", }) // b.2) client const piB2 = await pub.paymentIntents.confirm(piB1.id, { client_secret: piB1.client_secret, setup_future_usage: "off_session", payment_method_data: { type: "card", card: { number: "4242 4242 4242 4242", exp_month: 2, exp_year: 2024, cvc: 424 } } }) console.log(`piB: ${piB2.status}`, piB2)