3e:null 3f:["$","title",null,{"children":"Auto 🪄 Bitcoin Giving Certificates 💵 💶 | Bob | Observable"}] 45:T6e1,# Auto 🪄 Bitcoin Giving Certificates 💵 💶 Open source giving certificates based on Bitcoin. These are to be used for giving away small amounts of Bitcoin to people in the physical world. Ideal for offline value transfer 💸

Watch the Step by Step Tutorial

We're recommending the **[Blue Wallet](https://bluewallet.io)** as an easy app to use to deposit and recommend others to use for withdrawal. Other wallets / services you might want to try can be found here: https://github.com/lnurl/luds ### What are some common use cases for these giving certificates? * Giving to people on walks, for kindness, gratitude, and appreciation. * Giving as tips anywhere, restaurants, valets, hotels, etc. * Giving as gifts to loved ones who you would also like to teach about Bitcoin. * Giving in cards for birthdays, holidays, etc. * Giving to people experiencing homelessness, they can exchange these for local currencies or things they need * Give at your spiritual gathering places. * Give to strangers for fun, because there is joy in giving. * Giving to teach people about Bitcoin. * Giving at conferences as gifts to attendees. * Giving in corporate gift baskets instead of sending gift cards to specific stores. **Beta Version 0.05** * To use the **Manual LNURL** version we started with, you can find it here: https://observablehq.com/d/4eb908f3507b6fcd. * It's easier to follow exactly how the manual version works, but it takes much longer to create printable certificates.46:Ta28,amount = { let text = amountInput let symbol let value let sat let satD let satW let pluralCurrency let buffer let satBuffer = 300 let unixTs = Math.round(Date.now()/1000) let recentTs = unixTs.toString().slice(-4) function makeId(length) { var result = ''; var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; var charactersLength = characters.length; for ( var i = 0; i < length; i++ ) { result += characters.charAt(Math.floor(Math.random() * charactersLength)); } return result; } let certID = makeId(5) + "-" + recentTs let type let lnurlD let lnurlW if(text == 'Five'){ value = '5' } else if (text == 'Ten'){ value = '10' } else if (text == 'Twenty'){ value = '20' } else if (text == 'Fifty'){ value = '50' } else if (text == 'One Hundred'){ value = '100' } if(currency == 'USD'){ symbol = '$' pluralCurrency = "Dollars" sat = Math.round(value * 100000000/exchange.USD.last) satD = Math.round(sat/100)*100 + 300; satW = Math.round(sat/100)*100; buffer = Math.round(((satBuffer / 100000000) * exchange.USD.last)*100)/100 } else if (currency == 'EUR'){ symbol = '€' pluralCurrency = "Euros" sat = Math.round(value * 100000000/exchange.EUR.last) satD = Math.round(sat/100)*100 + satBuffer; satW = Math.round(sat/100)*100; buffer = Math.round(((satBuffer / 100000000) * exchange.EUR.last)*100)/100 } if(sequence == 0){ // resets these arrays history.length = 0; notesImageArray.length = 0; } else { history.push(sequence) } if(mode == "Custodial"){ // fully hosted for users type = 'custodial' } else if (mode == "Self Hosted"){ // user needs to specify their own LNbits info type = 'self-hosted' } if(sequence > 0){ let lnurls = await autoLNURLS(satD, satW, certID); lnurlD = lnurls.d lnurlW = lnurls.w } else { lnurlD = "Press the increment button to generate LNURLS - AUTO" lnurlW = "Press the increment button to generate LNURLS - AUTO" } let lastD = lnurlD.slice(-5) let lastW = lnurlW.slice(-5) let seqString = "000" + sequence let seqThree = seqString.substr(seqString.length - 3) let dID = lastD + "~" + seqThree let wID = lastW + "~" + seqThree return { type, sequence, certID, symbol, value, buffer, sats: {d: satD, w: satW, exact: sat, satBuffer}, text, pluralCurrency, unixTs, dID, wID, history, lnurlD, lnurlW } }47:T2846,

2 Sided Printable Giving Certificate

Front Side (Deposit via LNURL)

${decorators.front}

About ${amount.symbol}${amount.value}

Open-Source Global BTC Giving Certificate

About ${amount.text} ${amount.pluralCurrency} for Giving

DEPOSIT

${amount.unixTs}

${amount.dID}

${qrcodeDeposit}

Put In with ${suggestWallet}

Deposits ${amount.sats.d.toLocaleString()} SAT

${to ? 'To: ' + to : null}

Back Side (Withdraw via LNURL)

${decorators.back}

About ${amount.symbol}${amount.value}

Open-Source Global BTC Giving Certificate

About ${amount.text} ${amount.pluralCurrency} for Giving

WITHDRAW

${amount.unixTs}

Out

${amount.wID}

${qrcodeWithdrawal}

Take Out with ${suggestWallet}

Withdraws ${amount.sats.w.toLocaleString()} SAT

${from ? 'From: ' + from : null}

One Time Use

48:T545,autoLNURLS = async (dAmountSat, wAmountSat, certID) => { // new deposit lnurl let urlD = "https://legend.lnbits.com/lnurlp/api/v1/links" let urlW = "https://legend.lnbits.com/withdraw/api/v1/links" let admin if(mode == "Self Hosted"){ if(apiKeyAdmin == ""){ // user did not enter a value } else { admin = apiKeyAdmin; } } else { admin = await decode('errorText', payload.b) } let dataD = { description: `Can deposit ${dAmountSat} SAT ~ cert: ${certID}`, min: dAmountSat, max: dAmountSat } let dataW = { title: `Can withdraw ${wAmountSat} SAT ~ cert: ${certID}`, min_withdrawable: wAmountSat, max_withdrawable: wAmountSat, uses: 1, wait_time: 1, is_unique: false } let d = (await fetch(urlD, { method: "POST", body: JSON.stringify(dataD), headers: { 'Content-type': 'application/json', 'X-Api-Key': admin } })).json() let w = (await fetch(urlW, { method: "POST", body: JSON.stringify(dataW), headers: { 'Content-type': 'application/json', 'X-Api-Key': admin } })).json() return { d: (await d).lnurl, w: (await w).lnurl } }49:T48e,generatePdf = (notePdfData) => { let pMaxIndex = notePdfData.length - 1 let totalPages = notePdfData[pMaxIndex].pdfPages // x & y coordinates for various positions let x = 20 let w = 170 let h = w * 286 / 639 let y1 = 15 // position 1, y = y1 let y2 = y1*2+h // position 2, y = y2 let y3 = y1*3+h*2 // position 3, y = y3 let pagesToAdd = totalPages - 1 let newPages = new Array(pagesToAdd) let doc = new jspdf.jsPDF() for (const element of newPages) { doc.addPage() } for (const entry of notePdfData) { let y // set y position if (entry.pagePosition == 1){ y = y1 } else if (entry.pagePosition == 2){ y = y2 } else if (entry.pagePosition == 3){ y = y3 } // front page note doc.setPage(entry.frontPage) doc.addImage(entry.frontImage, 'PNG', x, y, w, h) // back page note doc.setPage(entry.backPage) doc.addImage(entry.backImage, 'PNG', x, y, w, h) } //doc.save("testing") // {pdfPages: totalPages, notesQty: notePdfData.length, printPagesDblSided: totalPages/2 } return doc }4a:[{"id":"73f4da265e3c9e88eadffa5b308b81c8fa9462e606f451377cf710eba859138ef53778a694b58e0168d312f6d1b57b0694375c2beba9269a5e4d3771789f2b22","href":"https://static.observableusercontent.com/files/73f4da265e3c9e88eadffa5b308b81c8fa9462e606f451377cf710eba859138ef53778a694b58e0168d312f6d1b57b0694375c2beba9269a5e4d3771789f2b22","name":"electric_circuit.svg","type":"image/svg+xml","lastModified":1670205066659.579,"size":211527},{"id":"daf17405cd463aa93a6d1a9f2513f3204a3188477eec48c5761807f4a1fdad05d18130be48f2e99866dee63fcba81b62185f91c4fad4b360eef4a453a253c3eb","href":"https://static.observableusercontent.com/files/daf17405cd463aa93a6d1a9f2513f3204a3188477eec48c5761807f4a1fdad05d18130be48f2e99866dee63fcba81b62185f91c4fad4b360eef4a453a253c3eb","name":"snowflakes-red.svg","type":"image/svg+xml","lastModified":1670370805917.145,"size":200883}] 43:{"id":"9353b8cb0eab2d1d","slug":null,"title":"Auto 🪄 Bitcoin Giving Certificates 💵 💶","thumbnail":"138dae05652987672b5f3d456b298c8656ada98d9e36fce5385d2966f0a2ad8b","access_level":"public","create_time":"$D2022-11-27T22:05:11.113Z","update_time":"$D2023-02-05T03:04:01.628Z","view_time":null,"first_public_time":"$D2022-11-27T22:05:21.527Z","has_unpublished_edits":null,"fork":false,"stars":2,"starred":false,"owner":{"type":"team","id":"ea7f9b9736dc9c9e","login":"mullojo","name":"Bob","avatar_url":"https://avatars-next.observableusercontent.com/6e80d3c40a7d9ff9e7a39d86c93b61db0a45ab46214885739e5901cec0f01788","tier":"starter_2024","bio":"","following":false},"version":2220,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"e215b6c167225412","login":"mullojo","name":"Bob","avatar_url":"https://avatars-next.observableusercontent.com/6e80d3c40a7d9ff9e7a39d86c93b61db0a45ab46214885739e5901cec0f01788","tier":null,"bio":"","following":false}],"members":[{"type":"individual","id":"e215b6c167225412","login":"mullojo","name":"Bob","avatar_url":"https://avatars-next.observableusercontent.com/6e80d3c40a7d9ff9e7a39d86c93b61db0a45ab46214885739e5901cec0f01788","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":true,"trashed":false,"lapsed":null,"subscribed":null,"forks":2,"collection":null,"type":"notebook","body":{"titling":"auto","title":"Auto 🪄 Bitcoin Giving Certificates 💵 💶","cells":[{"id":0,"value":"$45","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":1742,"value":"## Fill In Certificate Details\nFill in the details for your certificate. See FAQ for step by step to use \"Self-Hosted\" option.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":947,"value":"The current exchange rate suggests to deposit **${amount.sats.d.toLocaleString()} SAT** for about **${amount.symbol}${amount.value}**. This includes an extra 300 SAT buffer (about ${amount.symbol}${amount.buffer}) for the withdrawal lightning fees.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":155,"value":"viewof amountInput = Inputs.select([\"Five\", \"Ten\", \"Twenty\", \"Fifty\", \"One Hundred\"], {label: 'Choose Amount', value: \"Five\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":614,"value":"viewof currency = Inputs.select([\"USD\", \"EUR\"], {label: 'Choose Local Currency', value: \"USD\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1226,"value":"viewof mode = Inputs.radio([\"Self Hosted\", \"Custodial\"], {value: \"Self Hosted\", label: html`Mode`, format: x => html`${x}`})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":227,"value":"viewof apiKeyAdmin = Inputs.password({\n label: 'LNbits API Info (Admin)',\n placeholder: mode == 'Self Hosted' ? 'Paste your LNbits Admin key' : 'API info is provided for you',\n disabled: mode == 'Self Hosted' ? false : true\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":519,"value":"viewof suggestWallet = Inputs.select([\"LNURL\", \"BlueWallet\"], {label: 'Suggest Wallet or Standard', value: \"BlueWallet\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":802,"value":"viewof svgBackground = Inputs.select([\"Circuit\", \"Snowflakes\"], {label: 'Background Art', value: \"electric_circuit.svg\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1350,"value":"viewof from = Inputs.text({label: \"From: (Optional)\", placeholder: \"Enter some text (optional)\", maxlength: 18})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1408,"value":"viewof to = Inputs.text({label: \"To: (Optional)\", placeholder: \"Enter some text (optional)\", maxlength: 18})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1737,"value":"## Increment To Generate Additional Certificates\nAfter filling out the details above, Press the increment Button to Generate Each New Certificate at a time.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":1277,"value":"viewof sequence = Inputs.button([\n [\"Reset\", value => 0],\n [\"Increment ➕\", value => value + 1]\n], {\n value: 0, \n label: \"Certificate Sequence\", \n disabled: (apiKeyAdmin.length == 32 && mode == \"Self Hosted\") || (mode == \"Custodial\") ? false : true,\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1838,"value":"viewof addToPDF = Inputs.button(\"Add To PDF 🖨\", {\n label: \"Prep for Printing\",\n disabled: sequence > 0 ? false : true,\n reduce: async () => await dataForPdf()\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1590,"value":"viewof downloadPDF = Inputs.button(\"Download PDF 📄\", {\n label: \"When you're ready\",\n value: null, \n reduce: async () => generatePdf(addToPDF).save(\"beta-pdf-download.pdf\")\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1430,"value":"$46","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":5,"value":"$47","pinned":false,"hidden":false,"mode":"html","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":1313,"value":"history = []","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1827,"value":"dataForPdf = async () => {\n let images = await noteImages()\n notesImageArray.push(images)\n return notePdfData(notesImageArray);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":183,"value":"qr = require('https://unpkg.com/qrcode@1.4.4/build/qrcode.min.js')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":635,"value":"opts = {\n\n return {\n errorCorrectionLevel: 'H',\n //type: 'image/jpeg',\n //quality: 0.3,\n margin: 2,\n color: {\n dark: \"#1A4314\",\n light:\"#F6FFD1\"\n }\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":202,"value":"qrcodeDeposit = html`

${await qr.toString(amount.lnurlD, opts)}

${await qr.toString(amount.lnurlW, opts)}

`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":684,"value":"# FAQ\n\n### Q: How do I use the \"Self-Hosted\" Option?\n1. Go to https://legend.lnbits.com, type in your custom name, and click \"Add A New Wallet\"\n2. Click \"Manage Extensions\" and click \"Enable\" for **LNURLp** (deposit) and **LNURLw** (withdraw) extensions\n3. On the wallet, click \"API Info\" and copy & paste the Admin API key value above\n4. Keep this LNBits wallet URL saved for your personal re-use\n\n### Q: How do we get in touch with the creators to collaborate or suggest features / improvements?\n* Send us an email [here](mailto:fresh.art9881@fastmail.com) (this is our email just for this project)\n* If you'd like to give to this project, please also just email us and we'd be happy to receive your support.\n","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":716,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":527,"value":"### Revisions\n\n**Version Beta - 0.05**\n* Updated the term \"note\" to \"certificate\" to indicate the value storage, pre-debt money was commonly designated this way\n* Updates to automatic features for \"Self-Hosted\" or \"Custodial\"\n* Added full PDF page rendering for easy printing. You can create a very large number of notes this way.\n* Forked Manual LNURL copy / paste version to streamline this notebook","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":542,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":766,"value":"# Background SVG Art\n\nOpen source SVG Art is used to add extra background theme details","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":853,"value":"circuit = {\n const text1 = await FileAttachment(\"electric_circuit.svg\").text();\n const document1 = (new DOMParser).parseFromString(text1, \"image/svg+xml\");\n const svg1 = d3.select(document1.documentElement).remove();\n\n const text2 = await FileAttachment(\"electric_circuit.svg\").text();\n const document2 = (new DOMParser).parseFromString(text2, \"image/svg+xml\");\n const svg2 = d3.select(document2.documentElement).remove();\n\n return {one: svg1.node(), two: svg2.node()}\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":855,"value":"snowflakes = {\n const text1 = await FileAttachment(\"snowflakes-red.svg\").text();\n const document1 = (new DOMParser).parseFromString(text1, \"image/svg+xml\");\n const svg1 = d3.select(document1.documentElement).remove();\n\n const text2 = await FileAttachment(\"snowflakes-red.svg\").text();\n const document2 = (new DOMParser).parseFromString(text2, \"image/svg+xml\");\n const svg2 = d3.select(document2.documentElement).remove();\n\n return {one: svg1.node(), two: svg2.node()}\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":847,"value":"decorators = {\n \n let front\n let back\n if(svgBackground == 'Circuit'){\n front = circuit.one;\n back = circuit.two;\n } else if (svgBackground == 'Snowflakes'){\n front = snowflakes.one;\n back = snowflakes.two;\n }\n return {front, back}\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1535,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":1478,"value":"# Other Imports","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":933,"value":"exchange = (await fetch(\"https://blockchain.info/ticker\")).json()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1024,"value":"import {decode} from '@endpointservices/notebook-secret'","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1018,"value":"payload = { return {\n a:{\n \"name\": \"AES-GCM\",\n \"salt\": \"hjNSI0ow4GJx0CNl\",\n \"iv\": \"J9AMvZJtrJFBgPX9\",\n \"ciphertext\": \"t1PzVAQvmCBXNZpDju1ziVHIt1n14QFjWLolUX/EDSRcpAN0sgc6PxzI187pHUE2\"\n}, \n b:{\n \"name\": \"AES-GCM\",\n \"salt\": \"RbG2jTEh9hMyT+n9\",\n \"iv\": \"CU84875EooUUaHBG\",\n \"ciphertext\": \"UDlJ39c0G4dQDp0m6qc9d8UBT0z2PxTqCK61EJms0Glfa1w+N6AKWp5o+lfhJQDt\"\n }\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1207,"value":"$48","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1480,"value":"htmlToImage = require('html-to-image@1.11.3/dist/html-to-image.js')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1569,"value":"jspdf = import('https://unpkg.com/jspdf@2.3.1/dist/jspdf.es.min.js?module')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1621,"value":"notesImageArray = []","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1484,"value":"noteImages = async () => {\n\n let frontSide = document.getElementById('front-side')\n let backSide = document.getElementById('back-side')\n \n let frontImage = await htmlToImage.toPng(frontSide, {pixelRatio: 3}).then((dataUrl) => {\n var img = new Image()\n img.src = dataUrl\n return img;\n })\n\n let backImage = await htmlToImage.toPng(backSide, {pixelRatio: 3}).then((dataUrl) => {\n var img = new Image()\n img.src = dataUrl\n return img;\n })\n\n let imagePair = {frontImage, backImage};\n\n return imagePair\n\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":1873,"value":"notePdfData = (notesImageArray) => {\n \n let notes = notesImageArray.length\n let notesPerPage = 3\n\n let notePdfData = []\n\n for (let i = 1; i <= notes; i++) {\n\n let frontImage = notesImageArray[i - 1].frontImage\n let backImage = notesImageArray[i - 1].backImage\n\n let noteNo = i\n let pdfPages = Math.ceil(i/notesPerPage)*2\n let pagePairGroup = pdfPages/2\n let pagePosition = i - (pagePairGroup - 1)*3\n let frontPage = pdfPages - 1\n let backPage = pdfPages\n \n notePdfData.push({noteNo, pdfPages, pagePairGroup, pagePosition, frontPage, backPage, frontImage, backImage})\n }\n \n return notePdfData\n \n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":2049,"value":"$49","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W4a","stdlib":"1"}} 44:"$43:body"