\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{bguiz} \pdfinfo{ /Title (hedera-hackathon-starter-v1.pdf) /Creator (Cheatography) /Author (bguiz) /Subject (Hedera Hackathon Starter v1 Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{8259EF} \definecolor{LightBackground}{HTML}{F7F4FE} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Hedera Hackathon Starter v1 Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{bguiz} via \textcolor{DarkBackground}{\uline{cheatography.com/199892/cs/42233/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}bguiz \\ \uline{cheatography.com/bguiz} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Published 31st January, 2024.\\ Updated 6th February, 2024.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{2} \begin{tabularx}{8.4cm}{x{2.128 cm} x{2.508 cm} x{2.964 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Hello World}} \tn % Row 0 \SetRowColor{LightBackground} Accounts \&\{\{nl\}\}Transactions & Same as EVM & \{\{link="https://docs.hedera.com/hedera/tutorials/hello-world/create-fund-account"\}\}Create \& Fund\{\{/link\}\} \tn % Row Count 7 (+ 7) % Row 1 \SetRowColor{white} HSCS\{\{nl\}\}{\bf{smart contracts}} & Same as EVM & \{\{link="https://docs.hedera.com/hedera/tutorials/hello-world/hscs-smart-contract"\}\}Smart Contract\{\{/link\}\} \tn % Row Count 15 (+ 8) % Row 2 \SetRowColor{LightBackground} HTS\{\{nl\}\}{\bf{tokens}} & \seqsplit{Hedera-unique} +\{\{nl\}\}EVM interface & \{\{link="https://docs.hedera.com/hedera/tutorials/hello-world/hts-fungible-token"\}\}Fungible Token\{\{/link\}\} \tn % Row Count 22 (+ 7) % Row 3 \SetRowColor{white} HFS\{\{nl\}\}{\bf{files}} & \seqsplit{Hedera-unique} & \{\{link="https://docs.hedera.com/hedera/tutorials/hello-world/hfs-files"\}\}Files\{\{/link\}\} \tn % Row Count 28 (+ 6) % Row 4 \SetRowColor{LightBackground} HCS\{\{nl\}\}{\bf{consensus}} & \seqsplit{Hedera-unique} & \{\{link="https://docs.hedera.com/hedera/tutorials/consensus/submit-your-first-message"\}\}Submit Message\{\{/link\}\} \tn % Row Count 36 (+ 8) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.584 cm} x{2.508 cm} x{2.508 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Low-level EVM compatibility}} \tn % Row 0 \SetRowColor{LightBackground} \{\{link="https://docs.hedera.com/hedera/core-concepts/keys-and-signatures"\}\}Keys and\{\{nl\}\}Signatures\{\{/link\}\} & ECDSA secp256k1\{\{nl\}\}(same as EVM)) & EdDSA Ed25519 \tn % Row Count 9 (+ 9) % Row 1 \SetRowColor{white} Bytecode & \{\{link="https://github.com/hyperledger/besu/releases/tag/23.10.2"\}\}Hyperledger Besu EVM\{\{/link\}\} & \{\{link="https://github.com/hashgraph/hedera-services/blob/618431b4/hedera-dependency-versions/build.gradle.kts\#L22"\}\}v23.10.2 - Shanghai\{\{/link\}\} \tn % Row Count 21 (+ 12) % Row 2 \SetRowColor{LightBackground} JSON-RPC & \{\{link="https://github.com/hashgraph/hedera-json-rpc-relay/blob/main/docs/rpc-api.md"\}\}RPC Endpoints\{\{/link\}\}\{\{nl\}\}excludes Ethereum consensus + node comms & \{\{link="https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/hashgraph/hedera-json-rpc-relay/main/docs/openrpc.json\&uiSchema\%5BappBar\%5D\%5Bui:splitView\%5D=false\&uiSchema\%5BappBar\%5D\%5Bui:input\%5D=false\&uiSchema\%5BappBar\%5D\%5Bui:examplesDropdown\%5D=false"\}\}Interactive RPC Playground\{\{/link\}\} \tn % Row Count 46 (+ 25) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{2.584 cm} x{2.508 cm} x{2.508 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Low-level EVM compatibility (cont)}} \tn % Row 3 \SetRowColor{LightBackground} EVM Equivalence & & \{\{link="https://docs.hedera.com/hedera/core-concepts/smart-contracts/hederas-evm-equivalence-goals-and-exceptions"\}\}Goals and exceptions\{\{/link\}\} \tn % Row Count 12 (+ 12) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{1.44 cm} x{6.56 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Example Apps}} \tn % Row 0 \SetRowColor{LightBackground} Demos HCS & \{\{link="https://github.com/scalemaildev/hashgraph\_chess"\}\}Hashgraph Chess\{\{/link\}\} \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} Demos HTS & \{\{link="https://github.com/hashgraph/hedera-hts-demo"\}\}Fungible Tokens\{\{/link\}\} \tn % Row Count 6 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Code Templates}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{8.4cm}}{\{\{link="https://github.com/hedera-dev/multi-wallet-hedera-transfer-dapp-js"\}\}EthersJs + React DApp - JS\{\{/link\}\}} \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{\{\{link="https://github.com/hedera-dev/multi-wallet-hedera-transfer-dapp"\}\}EthersJs + React DApp - TS\{\{/link\}\}} \tn % Row Count 6 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.16 cm} x{5.84 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Tools}} \tn % Row 0 \SetRowColor{LightBackground} Wallet & \{\{link="https://docs.hedera.com/hedera/open-source-solutions/hedera-wallet-snap-by-metamask"\}\}Metamask + Snap\{\{/link\}\} \tn % Row Count 5 (+ 5) % Row 1 \SetRowColor{white} Faucet & \{\{link="https://docs.hedera.com/hedera/getting-started/introduction\#hedera-faucet"\}\}Tutorial\{\{/link\}\} \tn % Row Count 9 (+ 4) % Row 2 \SetRowColor{LightBackground} Explorer & \{\{link="https://hashscan.io/testnet/dashboard"\}\}Hashscan\{\{/link\}\} \tn % Row Count 12 (+ 3) % Row 3 \SetRowColor{white} \seqsplit{Verification} & \{\{link="https://github.com/hedera-dev/hedera-example-smart-contract-verification-ethersjs-solc"\}\}Sourcify\{\{/link\}\} \tn % Row Count 16 (+ 4) % Row 4 \SetRowColor{LightBackground} Hardhat & \{\{link="https://docs.hedera.com/hedera/tutorials/smart-contracts/hscs-workshop/hardhat"\}\}Tutorial\{\{/link\}\}\{\{nl\}\}\{\{link="https://github.com/hedera-dev/hedera-smart-contracts-workshop/tree/main/hardhat"\}\}Demo Repo\{\{/link\}\} \tn % Row Count 24 (+ 8) % Row 5 \SetRowColor{white} Foundry & \{\{link="https://docs.hedera.com/hedera/tutorials/smart-contracts/foundry"\}\}Tutorial\{\{/link\}\} \tn % Row Count 28 (+ 4) % Row 6 \SetRowColor{LightBackground} JSON-RPC & \{\{link="https://docs.hedera.com/hedera/tutorials/more-tutorials/json-rpc-connections/hedera-json-rpc-relay"\}\}Tutorial\{\{/link\}\} \tn % Row Count 33 (+ 5) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{2.16 cm} x{5.84 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Tools (cont)}} \tn % Row 7 \SetRowColor{LightBackground} EthersJs & \{\{link="https://github.com/hedera-dev/hedera-code-snippets/tree/main/connect-ethersjs"\}\}Connection Demo\{\{/link\}\}\{\{nl\}\}\{\{link="https://stackoverflow.com/a/76181451/194982"\}\}Stackoverflow\{\{/link\}\} \tn % Row Count 7 (+ 7) % Row 8 \SetRowColor{white} Viem & \{\{link="https://github.com/hedera-dev/hedera-code-snippets/tree/main/connect-viem"\}\}Connection Demo\{\{/link\}\}\{\{nl\}\}\{\{link="https://github.com/hedera-dev/hedera-code-snippets/tree/main/dapp-viem"\}\}DApp Demo\{\{/link\}\}\{\{nl\}\}\{\{link="https://stackoverflow.com/a/77912632/194982"\}\}Stackoverflow\{\{/link\}\} \tn % Row Count 18 (+ 11) % Row 9 \SetRowColor{LightBackground} Token Standards & \{\{link="https://github.com/hedera-dev/hedera-tokens/blob/main/erc20-hardhat"\}\}Hardhat + ERC20 Demo\{\{/link\}\}\{\{nl\}\}\{\{link="https://github.com/hedera-dev/hedera-tokens/blob/main/erc721-hardhat"\}\}Hardhat + ERC721 Demo\{\{/link\}\} \tn % Row Count 26 (+ 8) % Row 10 \SetRowColor{white} REST APIs & \{\{link="https://testnet.mirrornode.hedera.com/api/v1/docs/"\}\}Swagger\{\{/link\}\} \tn % Row Count 29 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Where to get info/ help?}} \tn % Row 0 \SetRowColor{LightBackground} \{\{link="https://docs.hedera.com/"\}\}Official Hedera Docs\{\{/link\}\} & \{\{link="https://docs.hedera.com/hedera/core-concepts/smart-contracts"\}\}Smart Contract Docs\{\{/link\}\} \tn % Row Count 5 (+ 5) % Row 1 \SetRowColor{white} \{\{link="https://github.com/hedera-dev/hedera-code-snippets"\}\}Hedera Code Snippets\{\{/link\}\} & \{\{link="https://stackoverflow.com/questions/tagged/hedera"\}\}Stackoverflow Hedera Tag\{\{/link\}\} \tn % Row Count 10 (+ 5) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\{\{link="https://hedera.com/discord"\}\}Hedera Discord Community\{\{/link\}\}} \tn % Row Count 12 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}