scrape the target weekly ads into a (hopefully) coherent human-readable text (see comments on how to test drive it)

for_browser.js

/* ============================================================================= */
function nullToEmptyString(maybeNull) {
    return maybeNull ? maybeNull : '';
}

function stripPeriod(itemProperty) {
    const notNullItemProperty = nullToEmptyString(itemProperty);
    return notNullItemProperty.replace(/\.(\s|\*|†)*$/, '');
}

function addDollarSignIfPriceIsNumber(itemProperty) {
    const notNullItemProperty = nullToEmptyString(itemProperty);
    if (Number(notNullItemProperty)) {
        return `$${notNullItemProperty}`;
    } else {
        return `${notNullItemProperty}`;
    }
}

function formatFinePrint(finePrint) {

    let newFinePrint =
        finePrint.
        /* The purpose of this is to be able to filter out 'Expect More. Pay Less.` from `page_description` on the "company messaging" page. */
        replace(/(More|Less)\./g, '').
        replace(/No. /g, 'Product number: ').
        replace(/\/mo\./g, ' per month').
        split(/(\.\s+|\*|†)/).
        filter( str => !str.match(/(©|reserved|trademark|property|countr)/i) ).
        filter( str => str.length > 5 ).
        filter( str => !str.match(/Target Circle/) ).
        filter( str => !str.match(/help\.target\.com/g) ).
        join('; ');

    //if ( newFinePrint.length < 10 ) { console.log(newFinePrint.length); }

    if (newFinePrint.length > 1000) {
        return '';
    } else {
        return (newFinePrint.length === 0) ? '' : `; Fine print: ${newFinePrint}`;
    }
}

function makeItemScript(item) {
  const newTitle = stripPeriod(item.title);
  const newPrice = addDollarSignIfPriceIsNumber(item.price);
  const newProductDescription = stripPeriod(item.product_description /* .replace(/\.\s+/g, '; ') */ );
  const newFinePrint = formatFinePrint(item.fine_print);

  const template = `${newTitle}; ${newPrice}; ${newProductDescription}${newFinePrint}. `;

  return template.
      replace(/BOGO/g, 'Buy one get one ').
      replace(/\s*[†•]\s*/g, '; ').
      replace(/;\s*;/g, ';'). /* If product_description is empty, this can happen. */
      replace(/;\s*\./g, '.'). /* If price is empty, then there will be a dangling semicolon. */
      replace(/\s+/g, ' ').
      replace(/\s+\./g, '.').
      replace(/\.\./g, '.').
      replace(/\*/g, '').
      replace(/\.;/g, ';').
      //replace(/;\s*Fine print:\s*\./,'.').
      replace(/-pc\./g, '-piece').
      replace(/-pk\./g, '-pack').
      replace(/-qt\./g, '-quart').
      replace(/-ct\./g, '-count').
      replace(/-oz\./g, '-ounce').
      replace(/\/lb/g, '$ per pound').
      replace(/\/mo/g, '$ per month').
      replace(/-in\./g, '-inch').
      replace(/-pt\./g, '-pint').
      replace(/-fl\./g, '-fluid').
      replace(/-lb\./g, '-pound').
      replace(/([0-9]+)\/\$/g, "$1 for $").
      /* The Azure TTS REST API chokes on the replaced characters below. */
      replace(/\&/g, ' and ').
      replace(/™/g, ' ');
}

function pluralize(itemNumber) {
    return `${itemNumber} ${( itemNumber > 1 ) ? 'items' : 'item'}`;
}

function massagePageDescription(desc) {
    return desc.
        replace(/BEV/g, 'beverages').
        replace(/SNC/g, 'novelty candies').
        replace(/NIT/g, '').
        split(',').
        filter( (v, i, a) => a.indexOf(v) === i).
        join('; ');
}

/* Excluding `promotion_message` because it is always included in the `product_description`.
*/
function parseFlyer(jsonString) {
  return JSON.parse(jsonString).pages.
    /* Filter pages that advertise Target services. */
    filter( ( page ) => { return Number(page.indd_page_number) } ).
    map(
      ( page ) =>
        {
          let newItems =
            page.hotspots.
              /* When there is only a `title` and `price` and `page_description` are missing, usually the item is just a page blurb. */
              filter( ( item ) => { return [!!item.title, !!item.price, !!item.product_description].filter(i => i).length > 1 } ).
              map(
                ( item ) =>
                  {
                    return {
                      tts_item_script: makeItemScript(item),
                      original_properties: {
                        title: item.title,
                        price: item.price,
                        product_description: item.product_description,
                        fine_print: item.fine_print,
                        /* promotion_message: item.promotion_message */
                      }
                    };
                  }
              );

          return {
            items: newItems,
            tts_page_script: `${massagePageDescription(page.page_description)}; ${pluralize(page.hotspots.length)} on this page. `,
            original_properties: {
              page_description: page.page_description,
              indd_page_number: page.indd_page_number
            }
          };
        }
    ); /* the above creates an object where each key is the original page number and it holds each items with the proposed texts to be read) */
}

const convertPageItemsToString =
    ( items ) =>
      {
        return items.
          reduce(
            (acc, item) =>
              { return acc + item.tts_item_script; },
            ""
          );
      };

parseFlyer(document.body.textContent).
    map( (page, i) => `Page ${ i+1 }: ${ page.tts_page_script } ${ convertPageItemsToString(page.items) }`)

for_node.js

/*
The in-progress port of the above script to Node.js
*/

import * as sdk from "microsoft-cognitiveservices-speech-sdk";
import * as readline from "readline";
import * as https from "https";
/* import * as http from "http"; */
import * as fs from "fs";

/* ============================================================================= */
function nullToEmptyString(maybeNull) {
    return maybeNull ? maybeNull : '';
}

function stripPeriod(itemProperty) {
    const notNullItemProperty = nullToEmptyString(itemProperty);
    return notNullItemProperty.replace(/\.(\s|\*|†)*$/, '');
}

function addDollarSignIfPriceIsNumber(itemProperty) {
    const notNullItemProperty = nullToEmptyString(itemProperty);
    if (Number(notNullItemProperty)) {
        return `$${notNullItemProperty}`;
    } else {
        return `${notNullItemProperty}`;
    }
}

function formatFinePrint(finePrint) {

    let newFinePrint =
        finePrint.
        replace(/(More|Less)\./g, ''). /* This is to be able to filter our 'Expect More. Pay Less.` on the "company messaging page */
        replace(/No. /g, 'Product number: ').
        replace(/\/mo\./g, ' per month').
        split(/(\.\s+|\*|†)/).
        filter( str => !str.match(/(©|reserved|trademark|property|countr)/i) ).
        filter( str => str.length > 5 ).
        filter( str => !str.match(/Target Circle/) ).
        filter( str => !str.match(/help\.target\.com/g) ).
        join('; ');

    //if ( newFinePrint.length < 10 ) { console.log(newFinePrint.length); }

    if (newFinePrint.length > 1000) {
        return '';
    } else {
        return (newFinePrint.length === 0) ? '' : `; Fine print: ${newFinePrint}`;
    }
}

function makeItemScript(item) {
  const newTitle = stripPeriod(item.title);
  const newPrice = addDollarSignIfPriceIsNumber(item.price);
  const newProductDescription = stripPeriod(item.product_description /* .replace(/\.\s+/g, '; ') */ );
  const newFinePrint = formatFinePrint(item.fine_print);

  const template = `${newTitle}; ${newPrice}; ${newProductDescription}${newFinePrint}. `;

  return template.
      replace(/BOGO/g, 'Buy one get one ').
      replace(/\s*[†•]\s*/g, '; ').
      replace(/;\s*;/g, ';'). /* If product_description is empty, this can happen. */
      replace(/;\s*\./g, '.'). /* If price is empty, then there will be a dangling semicolon. */
      replace(/\s+/g, ' ').
      replace(/\s+\./g, '.').
      replace(/\.\./g, '.').
      replace(/\*/g, '').
      replace(/\.;/g, ';').
      //replace(/;\s*Fine print:\s*\./,'.').
      replace(/-pc\./g, '-piece').
      replace(/-pk\./g, '-pack').
      replace(/-qt\./g, '-quart').
      replace(/-ct\./g, '-count').
      replace(/-oz\./g, '-ounce').
      replace(/\/lb/g, '$ per pound').
      replace(/\/mo/g, '$ per month').
      replace(/-in\./g, '-inch').
      replace(/-pt\./g, '-pint').
      replace(/-fl\./g, '-fluid').
      replace(/-lb\./g, '-pound').
      replace(/([0-9]+)\/\$/g, "$1 for $").
      /* The Azure TTS REST API chokes on the replaced characters below. */
      replace(/\&/g, ' and ').
      replace(/™/g, ' ');
}

function pluralize(itemNumber) {
    return `${itemNumber} ${( itemNumber > 1 ) ? 'items' : 'item'}`;
}

function massagePageDescription(desc) {
    return desc.
        replace(/BEV/g, 'beverages').
        replace(/SNC/g, 'novelty candies').
        replace(/NIT/g, '').
        split(',').
        filter( (v, i, a) => a.indexOf(v) === i).
        join('; ');
}

/* Excluding `promotion_message` because it is always included in the `product_description`.
*/
function parseFlyer(jsonString) {
  return JSON.parse(jsonString).pages.
    /* Filter pages that advertise Target services. */
    filter( ( page ) => { return Number(page.indd_page_number) } ).
    map(
      ( page ) =>
        {
          let newItems =
            page.hotspots.
              /* When there is only a `title` and `price` and `page_description` are missing, usually the item is just a page blurb. */
              filter( ( item ) => { return [!!item.title, !!item.price, !!item.product_description].filter(i => i).length > 1 } ).
              map(
                ( item ) =>
                  {
                    return {
                      tts_item_script: makeItemScript(item),
                      original_properties: {
                        title: item.title,
                        price: item.price,
                        product_description: item.product_description,
                        fine_print: item.fine_print,
                        /* promotion_message: item.promotion_message */
                      }
                    };
                  }
              );

          return {
            items: newItems,
            tts_page_script: `${massagePageDescription(page.page_description)}; ${pluralize(page.hotspots.length)} on this page. `,
            original_properties: {
              page_description: page.page_description,
              indd_page_number: page.indd_page_number
            }
          };
        }
    ); /* the above creates an object where each key is the original page number and it holds each items with the proposed texts to be read) */
}

   // let ff = Object.keys(f).reduce( (accArray, page_no) => { return accArray.concat(f[page_no])}, [] );

/* f.map( (page, i) => `Page ${i+1}: ${page.tts_page_script} ${ page.items.reduce( (acc, item) => { return acc + item.tts_item_script},"") }`. */
/*  ). */
/* forEach( e => console.log(e)); */

//Object.keys(f);


    //filter( pageArray => pageArray.filter( item => item.product_description.match(/wiffer/) ).length > 0 )

    //map( pageArray => pageArray.filter( item => !(!!item.price) ) )

     //reduce( (acc, pageArray) => { return acc.concat(pageArray.map( item => { console.log(item.tts_item_script);  return item.tts_item_script} ))}, []).filter( str => str.match(/brief/i) )//.forEach( i => console.log(i) )

    /* To print the text to be read (it would have probably been easier to `map` tts_item_script + join('') */
    /*
    reduce(
        (acc, pageArray) => {
            return acc + pageArray.reduce( (acc, item) => { return acc + item.tts_item_script }, "")
        },
        ""
    )
*/

/* ============================================================================= */

(function() {

  "use strict";

  /* The `import`s would not work inside the body of the function for some reason, so had to move them to the top when replacing the `require`s
  */
  /* var sdk = require("microsoft-cognitiveservices-speech-sdk"); */
  /* var readline = require("readline"); */

  /* http.request('http://localhost:4000', (res) => { */
  const url = 'https://api.target.com/weekly_ads/v1/promotions/3306-20221218?key=9ba599525edd204c560a2182ae1cbfaa3eeddca5';

  https.get(
    url,
    (res) =>
      {
        res.setEncoding('utf-8');
        let rawData = '';

        res.on(
          'data',
          (chunk) =>
            {
              rawData += chunk;
              // https://stackoverflow.com/a/11267583/1498178
              // (Do note the caveat at the bottom; so if this is something way larger, probably `createWriteStream` is the way to go:
              // https://stackoverflow.com/a/43370201/1498178
              /* fs.appendFile('target_2022-12-18.json', chunk, (err) => { */
              /*   if (err) { throw err; } */
              /*   console.log(`This chunk (length: ${chunk.length}) is written.`); */
              /* }); */
              /* console.log(chunk); */
              /* console.log(process.cwd()); */
              /* console.log(typeof chunk); */
            }
        );

        res.on(
          'end',
          () =>
            {
              /* const str = parseFlyer(rawData)[0].tts_page_script; */
              const str = parseFlyer(rawData).map( (page, i) => `Page ${i+1}: ${page.tts_page_script} ${ page.items.reduce( (acc, item) => { return acc + item.tts_item_script},"") }`)[27];
              console.log(str);
              /* console.log(JSON.parse(rawData).pages[0].page_description); */
            }
        );
      }
  );

/*
  var audioFile = "YourAudioFile.wav";
  // This example requires environment variables named "SPEECH_KEY" and "SPEECH_REGION"
  const speechConfig = sdk.SpeechConfig.fromSubscription(process.env.SPEECH_KEY, process.env.SPEECH_REGION);
  const audioConfig = sdk.AudioConfig.fromAudioFileOutput(audioFile);

  // The language of the voice that speaks.
  speechConfig.speechSynthesisVoiceName = "en-US-JennyNeural";

  // Create the speech synthesizer.
  var synthesizer = new sdk.SpeechSynthesizer(speechConfig, audioConfig);

  var rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
  });

  rl.question("Enter some text that you want to speak >\n> ", function (text) {
    rl.close();
    // Start the synthesizer and wait for a result.
    synthesizer.speakTextAsync(text,
        function (result) {
      if (result.reason === sdk.ResultReason.SynthesizingAudioCompleted) {
        console.log("synthesis finished.");
      } else {
        console.error("Speech synthesis canceled, " + result.errorDetails +
            "\nDid you set the speech resource key and region values?");
      }
      synthesizer.close();
      synthesizer = null;
    },
        function (err) {
      console.trace("err - " + err);
      synthesizer.close();
      synthesizer = null;
    });
    console.log("Now synthesizing to: " + audioFile);
  });
*/
}());

Steps:

1. Go to https://api.target.com/weekly_ads/v1/promotions/3306-20221218?key=9ba599525edd204c560a2182ae1cbfaa3eeddca5
   (20221218 can be any other date that falls on a Sunday - as of the time of this writing)

2. Open the browser's dev tools and go the JavaScript console.

3. Use the script above.