Create an appointment at the Texas DPS at the closest location, soonest time, programatically.

texas-dps.js

const axios = require('axios');
async function getLocations() {
    const locationsData = await axios.post("https://publicapi.txdpsscheduler.com/api/AvailableLocation", {
        "TypeId": 71,
        "ZipCode": "10001",
        "CityName": "",
        "PreferredDay": 0
    });
    return locationsData.data;
}
async function getTimes(lid) {
    const timeData = await axios.post("https://publicapi.txdpsscheduler.com/api/AvailableLocationDates", {
        LocationId: lid,
        TypeId: 71,
        SameDay: false,
        StartDate: null,
        PreferredDay: 0
    });
    return timeData.data;
}
async function createAppointment(time, site, respId) {
    const appointmentData = await axios.post("https://publicapi.txdpsscheduler.com/api/NewBooking", {
        "CardNumber": "",
        "FirstName": "Blake",
        "LastName": "Stevenson",
        "DateOfBirth": "mm/dd/yyyy",
        "Last4Ssn": "ssn4",
        "Email": "email@example.com",
        "CellPhone": "(123) 456-7890",
        "HomePhone": "",
        "ServiceTypeId": 71,
        "BookingDateTime": time, //2020-10-16T08:00:00
        "BookingDuration": 45,
        "SpanishLanguage": "N",
        "SiteId": site,
        "SendSms": false,
        "AdaRequired": false,
        "ResponseId": respId
    });
    return appointmentData.data;
}
async function getResponseId() {
    const respIdData = await axios.post("https://publicapi.txdpsscheduler.com/api/Eligibility", {
        "FirstName": "Blake",
        "LastName": "Stevenson",
        "DateOfBirth": "mm/dd/yyyy",
        "LastFourDigitsSsn": "ssn4",
        "CardNumber": ""
    });
    return respIdData.data[0].ResponseId;
}
(async () => {
    // get response id
    const responseId = await getResponseId();
    console.log(responseId);
    // get locations
    const locations = await getLocations();
    console.log(locations[0]);
    // get times
    const times = await getTimes(locations[0].Id);
    console.log(times.LocationAvailabilityDates[0]);
    // create appointment
    const appointment = await createAppointment(times.LocationAvailabilityDates[0].AvailableTimeSlots[0].StartDateTime, locations[0].Id, responseId);
    console.log(appointment);
    this.appointment = appointment;
})();

How did you find out about the api? I don't see any info on it when googling.