layout	main	order	hideResources	tools	articles	intro	overview	customModules
ModuleLandingPage	true	0	true	title description links image Cosmos SDK A framework for building public blockchains. name url Learn more https://v1.cosmos.network/sdk name url Documentation https://docs.cosmos.network/ /cosmos-sdk-icon.svg title description links image CometBFT Blockchain consensus engine using the Tendermint algorithm. name url Learn more https://docs.cometbft.com/v0.37/ name url Documentation https://docs.cometbft.com/v0.37/core/ /tendermint-icon.svg title description links image Ignite CLI All-in-one platform to build, launch, and maintain apps on a sovereign and secured blockchain. name url Learn more https://ignite.com/cli name url Documentation https://docs.ignite.com /ignitecli-icon.svg title description links image IBC Industry standard protocol for inter-blockchain communication. name url Learn more https://ibcprotocol.dev/ name url Documentation https://ibc.cosmos.network/ /ibc-icon.svg title description links image CosmWasm Smart contracting platform built for the Interchain Ecosystem. name url Learn more https://cosmwasm.com/ name url Documentation https://docs.cosmwasm.com/docs /cosmwasm-icon.svg title description links image Cosmos Hub Software powering Cosmos Hub, the heart of the Interchain network, and home of the ATOM token. name url Documentation https://hub.cosmos.network/ /generic-star-icon.svg	title date time url image How-to Cosmos Pt. 4- Building your first application with CosmJS Sunday, June 4 8 https://bit.ly/43wVQne /article-banner-02.png title date time url image The Mind, Body, and Soul of Cosmos. Friday, May 27 6 https://blog.cosmos.network/the-mind-body-and-soul-of-cosmos-140ee7cec0cd /article-banner-01.png title date time url image ELI5: What is IBC? Tuesday, Nov 15 7 https://medium.com/the-interchain-foundation/eli5-what-is-ibc-def44d7b5b4c /article-banner-04.jpg	overline title image description action secondtext Begin Your Interchain Journey Developer Portal /graphics-sdk-course.png The Interchain is a network of interoperable blockchains built on BFT consensus.<br/><br/> The ever-expanding ecosystem provides an SDK, tokens, wallets, applications, and services. Discover the Cosmos SDK to develop application-specific blockchains.<br/><br/> Ready to begin your journey? label url Start /academy/1-what-is-cosmos/index.html This is a beta version of the Developer Portal that will help you take your first steps with the Cosmos SDK. <br>We would be grateful for your feedback. At the end of each are three icons to rate the page and a small box where you can give us feedback about things to improve. Enjoy your journey through the portal and good luck with the HackAtom!	overline title items Frequently Asked Questions FAQ title description Is this portal for me? This portal offers an overview of the Interchain Stack (the Cosmos SDK, Ignite, CosmJS, etc.), as well as examples and exercises to help developers get a quick start. title description How should I go through the portal? The portal content unfolds the Interchain universe, beginning with a big-picture perspective and getting into how to create your application-specific blockchain with the Cosmos SDK. The introductory chapters give you a solid overview of the Cosmos SDK, its concepts, and dApps built on the Interchain Stack, while the hands-on exercises put theory into practice – showcasing how to address application concerns when developing such as managing gas fees, working with Ignite CLI, running a node, and making a chain IBC-enabled. A look into all chapters is recommended, as a basic understanding helps when things get tricky. <br/> You can follow your own path or go through the content chronologically. To follow your own path, select the tags for the subjects you are interested in and all the chapters and sections relating to that subject will be displayed. <br/> Additionally, you can select a version of the portal if you want to explore the content in a specific Interchain Stack version. For more information on which stack version is used in the different versions of the portal, please <a href="/versions.html">go to the page on Platform Versions</a>. In general, we do recommend using the most current version. title description What do I need to know? For the conceptual, high-level sections, you should have a solid understanding of blockchain technology and be familiar with decentralized applications. The deep dives are specially designed for experienced developers. title description How long will it take? With the concept sections, you will gain a solid understanding of Cosmos and the Interchain Stack. This might be a matter of just a couple of hours. The time you spend on the other chapters and the hands-on exercise depends on you – there are endless possibilities to discover. <br/><br/> Welcome to the Interchain!	title description useNarrowCards hideFilter image imageLightMode sections All there is to discover The portal has three different sections, with content to take you through the fundamentals of the Interchain, dive deeper in the tutorials, and apply your conceptual knowledge in the hands-on exercise chapters. true true /lp-images/ida_dev_portal_lp_background-00.png /lp-images/ida_dev_portal_lp_background-00.png image title href description tags Introduction to the Interchain /academy/1-what-is-cosmos/ From a high-level overview of the Interchain Ecosystem to the main concepts of the Cosmos SDK and IBC, take a look at these more conceptual introductions to begin your journey. concepts image title href description tags Hands-on Exercise /hands-on-exercise/1-ignite-cli/ Work with the full Interchain Stack while developing a checkers game blockchain with Ignite CLI, CosmJS and IBC, and preparing your chain to run in production. guided-coding image title href description Tutorials /tutorials/1-tech-terms/ Dive into these tutorials to help get you started and to take a more detailed look at IBC, CosmJS, and some of the other SDK modules. The tutorials walk you through code examples to translate interchain concepts into practice. title description sections Introduction to the Interchain Discover the interchain ecosystem, Cosmos SDK, and IBC. Feel free to start with the first chapter, or select one or more tags to filter the available content. image title href description links /lp-images/ida_dev_portal_lp_hero-05.png What is the interchain? /academy/1-what-is-cosmos/ Get a fast overview of: title path Blockchain technology and the interchain /academy/1-what-is-cosmos/1-blockchain-and-cosmos.html title path The interchain ecosystem /academy/1-what-is-cosmos/2-cosmos-ecosystem.html title path Interchain use cases /academy/1-what-is-cosmos/3-interchain-use-cases.html title path Getting ATOM and staking it /academy/1-what-is-cosmos/4-atom-staking.html image title href description links /lp-images/cosmos_dev_portal_module-03-lp-new.png Interchain concepts /academy/2-cosmos-concepts/ This chapter includes an introduction to the main concepts underlying the Interchain Stack and Cosmos SDK: title path tags Blockchain app architecture /academy/2-cosmos-concepts/1-architecture.html concepts cometbft cosmos-sdk title path Accounts /academy/2-cosmos-concepts/2-accounts.html title path Transaction, messages, and modules /academy/2-cosmos-concepts/3-transactions.html title path Protobuf /academy/2-cosmos-concepts/6-protobuf.html title path Multistore and keepers /academy/2-cosmos-concepts/7-multistore-keepers.html title path BaseApp /academy/2-cosmos-concepts/8-base-app.html title path Queries, events, and context /academy/2-cosmos-concepts/9-queries.html title path Testing /academy/2-cosmos-concepts/12-testing.html title path Relaying with IBC /academy/2-cosmos-concepts/13-relayer-intro.html title path Interchain Security /academy/2-cosmos-concepts/14-interchain-security.html title path Bridges /academy/2-cosmos-concepts/15-bridges.html title path Migrations /academy/2-cosmos-concepts/16-migrations.html image title href description links /lp-images/ida_dev_portal_lp_hero-04-b.png Introduction to IBC /academy/3-ibc/ This chapter will give you an understanding of the Inter-Blockchain Communication Protocol including: title path What is IBC? /academy/3-ibc/1-what-is-ibc.html title path IBC/TAO - connections, channels, and clients /academy/3-ibc/2-connections.html title path Light client development /academy/3-ibc/5-light-client-dev.html title path Solo machine client /academy/3-ibc/6-solomachine.html title path IBC token transfer /academy/3-ibc/7-token-transfer.html title path Interchain accounts /academy/3-ibc/8-ica.html title path IBC middleware /academy/3-ibc/9-ibc-mw-intro.html title path IBC tooling /academy/3-ibc/12-ibc-tooling.html title description sections Tutorials Get started and explore IBC, CosmJS, and Cosmos SDK modules. Feel free to start with the first chapter, or select one or more tags to filter the available content. image title href description links Good-to-know dev terms /tutorials/1-tech-terms/ From gRPC to Protobuf - a brief overview of dev terms you encounter in the interchain ecosystem. image title href description Set up your work environment /tutorials/2-setup/ Find out what you should install on your machine to work with the Cosmos SDK and work on the hands-on exercises. image title href description Run a node, API, and CLI /tutorials/3-run-node/ Take your first steps with simapp and get your first node for a Cosmos blockchain running. image title href description Golang introduction /tutorials/4-golang-intro/ Take your first steps with Go to discover the basics, including a look at Go interfaces, structures, arrays, slices, and much more. image title href description Docker introduction /tutorials/5-docker-intro/ Learn enough about Docker so as to conveniently do the hands-on exercises. image title href description IBC developers /tutorials/6-ibc-dev/ Want to become an IBC developer? Take a closer look at IBC denoms. image title href description links /lp-images/ida_dev_portal_lp_hero-09.png Introduction to CosmJS /tutorials/7-cosmjs/ Want to integrate frontend user interfaces and backend servers with your Cosmos chain? Take a closer look at: title path What is CosmJS? /tutorials/7-cosmjs/1-cosmjs-intro.html title path Your first CosmJS actions /tutorials/7-cosmjs/2-first-steps.html title path Compose complex transactions /tutorials/7-cosmjs/3-multi-msg.html title path Learn to integrate Keplr /tutorials/7-cosmjs/4-with-keplr.html title path Create custom CosmJS interfaces /tutorials/7-cosmjs/5-create-custom.html image title href description links /lp-images/ida_dev_portal_lp_hero-06.png Understand SDK modules /tutorials/8-understand-sdk-modules/ Discover several tutorials on specific SDK modules: title path The authz module /tutorials/8-understand-sdk-modules/1-authz.html title path The feegrant module /tutorials/8-understand-sdk-modules/2-feegrant.html title path The group module /tutorials/8-understand-sdk-modules/3-group.html title path The gov module /tutorials/8-understand-sdk-modules/4-gov.html image title href description links /lp-images/ida_dev_portal_lp_hero-07.png The path to production /tutorials/9-path-to-prod Prepare your blockchain to run in production: title path Run in production /tutorials/9-path-to-prod/1-overview.html title path Prepare the software to run /tutorials/9-path-to-prod/2-software.html title path Prepare a validator and keys /tutorials/9-path-to-prod/3-keys.html title path Prepare where the node starts /tutorials/9-path-to-prod/4-genesis.html title path Prepare and connect to other nodes /tutorials/9-path-to-prod/5-network.html title path Configure, run, and set up a service /tutorials/9-path-to-prod/6-run.html title path Prepare and do migrations /tutorials/9-path-to-prod/7-migration.html title description sections Hands-on Exercise From zero to hero - work with the full Interchain Stack while developing a checkers game blockchain. Feel free to start with the first chapter, or select one or more tags to filter the available content. image title href description links /lp-images/cosmos_dev_portal_module-04-lp.png SDK v0.50 native /hands-on-exercise/0-native/ Do the minimum to develop a checkers blockchain natively with Cosmos SDK v0.50: title path Preparation /hands-on-exercise/0-native/1-preparation.html title path Build your module /hands-on-exercise/0-native/2-build-module.html title path Add your first object /hands-on-exercise/0-native/3-add-game.html title path Add your first message /hands-on-exercise/0-native/4-add-message.html title path Add your first query /hands-on-exercise/0-native/5-add-query.html image title href description links /lp-images/cosmos_dev_portal_module-05-lp.png Ignite CLI basics /hands-on-exercise/1-ignite-cli/ Get started with Ignite CLI and begin developing a checkers blockchain: title path Introduction to Ignite CLI /hands-on-exercise/1-ignite-cli/1-ignitecli.html title path First steps for your checkers blockchain /hands-on-exercise/1-ignite-cli/2-exercise-intro.html title path Store object /hands-on-exercise/1-ignite-cli/3-stored-game.html title path Create custom messages /hands-on-exercise/1-ignite-cli/4-create-message.html title path Create and save a game /hands-on-exercise/1-ignite-cli/5-create-handling.html title path Add a way to make a move /hands-on-exercise/1-ignite-cli/6-play-game.html title path Emit game information /hands-on-exercise/1-ignite-cli/7-events.html title path Record the winners /hands-on-exercise/1-ignite-cli/8-game-winner.html image title href description links /lp-images/ida_dev_portal_lp_hero-02.png Ignite CLI advanced /hands-on-exercise/2-ignite-cli-adv/ Continue developing your checkers blockchain with Ignite by: title path Keep an up-to-date game deadline /hands-on-exercise/2-ignite-cli-adv/1-game-deadline.html title path Keep track of moves being played /hands-on-exercise/2-ignite-cli-adv/2-move-count.html title path Put your games in order /hands-on-exercise/2-ignite-cli-adv/3-game-fifo.html title path Enforce auto-expiring of games /hands-on-exercise/2-ignite-cli-adv/4-game-forfeit.html title path Let players set a wager /hands-on-exercise/2-ignite-cli-adv/5-game-wager.html title path Handle wager payments /hands-on-exercise/2-ignite-cli-adv/6-payment-winning.html title path Integration tests /hands-on-exercise/2-ignite-cli-adv/7-integration-tests.html title path Incentivize players /hands-on-exercise/2-ignite-cli-adv/8-gas-meter.html title path Help find a correct move /hands-on-exercise/2-ignite-cli-adv/9-can-play.html title path Play with cross-chain tokens /hands-on-exercise/2-ignite-cli-adv/10-wager-denom.html image title href description links /lp-images/ida_dev_portal_lp_hero-08.png CosmJS advanced /hands-on-exercise/3-cosmjs-adv/ Apply your knowledge of CosmJS to the checkers blockchain exercise. You will: title path Create custom objects /hands-on-exercise/3-cosmjs-adv/1-cosmjs-objects.html title path Create custom messages /hands-on-exercise/3-cosmjs-adv/2-cosmjs-messages.html title path Get an external GUI /hands-on-exercise/3-cosmjs-adv/3-external-gui.html title path Integrate CosmJS and Keplr /hands-on-exercise/3-cosmjs-adv/4-cosmjs-gui.html title path Use CosmJS for game indexing /hands-on-exercise/3-cosmjs-adv/5-server-side.html image title href description links /lp-images/universe.png From code to MVP to production /hands-on-exercise/4-run-in-prod/ Show your checkers blockchain to investors and progressively the world: title path Simulate a production setup with Docker Compose /hands-on-exercise/4-run-in-prod/1-run-prod-docker.html title path Tally player info after production /hands-on-exercise/4-run-in-prod/2-migration-info.html title path Add a leaderboard as a module /hands-on-exercise/4-run-in-prod/3-add-leaderboard.html title path Migrate the leaderboard module after production /hands-on-exercise/4-run-in-prod/4-migration-leaderboard.html title path Simulate a migration in production with Docker Compose /hands-on-exercise/4-run-in-prod/5-migration-prod.html image title href description links /lp-images/ida_dev_portal_lp_hero-03.png IBC advanced /hands-on-exercise/5-ibc-adv/ Test your IBC knowledge by developing your checkers blockchain further: title path Go relayer /hands-on-exercise/5-ibc-adv/1-go-relayer.html title path Hermes relayer /hands-on-exercise/5-ibc-adv/2-hermes-relayer.html title path IBC app development introduction /hands-on-exercise/5-ibc-adv/3-ibc-app-intro.html title path Make a module IBC-enabled /hands-on-exercise/5-ibc-adv/4-ibc-app-steps.html title path Add packet and acknowledgement data /hands-on-exercise/5-ibc-adv/5-ibc-app-packets.html title path Extend the checkers game with a leaderboard /hands-on-exercise/5-ibc-adv/6-ibc-app-checkers.html title path Create a leaderboard chain /hands-on-exercise/5-ibc-adv/7-ibc-app-leaderboard.html

This repo contains the code and content for the Developer Portal and the Interchain Developer Academy.

Note: The layout metadata at the top of the README.md file controls how the tutorial page is published. Write permissions are limited to preserve the structure and contents.

These tutorials guide you through actionable steps and walk-throughs to teach you how to use the Interchain Stack. The Interchain Stack is the world’s most popular framework for building application-specific blockchains, it consists of several products:

• Cosmos SDK, a modular framework to build blockchain applications
• IBC, the Inter-Blockchain Communication protocol that allows blockchains to communicate
• Tendermint, the algorithm that provides the consensus and networking layer for your blockchain application through CometBFT

The Developer Portal contains three types of content:

• Concepts, informational content explaining how the Interchain Stack functions
• Individual Tutorials, short tutorials to get you up to speed with individual components
• Checkers Game, a modular tutorial that covers the full stack and teaches you every element from set-up to launching in production with a front-end application attached.

Going through the entire content will teach you about:

• Blockchain technology and cryptography
• Developing with the Cosmos SDK & Ignite CLI
• The CometBFT consensus algorithm
• The Inter-Blockchain Communication Protocol
• Building front- and backends with CosmJS
• Integrating wallets such as Keplr
• Relaying in the interchain network

The code and docs for each tutorial are based on a specific version of the software. Be sure to follow the tutorial instructions to download and use the right version.

Use the tutorials landing page as your entry point to articles on the Interchain blog, videos on Interchain YouTube, and ways to get help and support.

This repo manages and publishes the developer platform. If you would like to contribute, please take a look at our CONTRIBUTION GUIDELINES and /developer-portal/TECHNICAL-SETUP documents.

Deployment

The main developer portal at https://tutorials.cosmos.network (and https://developers.cosmos.network/) is deployed with GitHub Pages. The IDA deployment at https://ida.interchain.io/ and both preview deployments are processes by Netlify.