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152 lines
9.3 KiB
Markdown
152 lines
9.3 KiB
Markdown
<h1><p align="center"><img alt="CosmJS" src="docs/logo-vertical-light.png" width="180" /></p></h1>
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<div align="center">
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<a href="https://lgtm.com/projects/g/cosmos/cosmjs/context:javascript"><img alt="Language grade: JavaScript" src="https://img.shields.io/lgtm/grade/javascript/g/cosmos/cosmjs.svg?logo=lgtm&logoWidth=18"/></a>
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<a href="https://github.com/cosmos/cosmjs/blob/main/LICENSE">
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<img alt="License: Apache-2.0" src="https://img.shields.io/github/license/cosmos/cosmjs.svg" />
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</a>
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</div>
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CosmJS is the Swiss Army knife to power JavaScript based client solutions
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ranging from Web apps/explorers over browser extensions to server-side clients
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like faucets/scrapers in the Cosmos ecosystem.
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"Cosm" is short for Cosmos and "JS" is short for _runs everywhere_ – we actually
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develop in TypeScript.
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## Documentation
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[Here is a list of examples][guided tour] using the Stargate package for use
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with [Cosmos SDK 0.41] applications (like [gaia 4]). Take a look at the wiki
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page,
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["What can CosmJS do for me?"](https://github.com/cosmos/cosmjs/wiki/What-can-CosmJS-do-for-me%3F)
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and various tests
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([ex](https://github.com/cosmos/cosmjs/blob/main/packages/stargate/src/signingstargateclient.spec.ts))
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for more example usage of the packages.
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[guided tour]:
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https://gist.github.com/webmaster128/8444d42a7eceeda2544c8a59fbd7e1d9
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[cosmos sdk 0.41]: https://github.com/cosmos/cosmos-sdk/tree/v0.41.0
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[gaia 4]: https://github.com/cosmos/gaia/tree/v4.0.0
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### API documentation
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The full API documentation is hosted at [cosmos.github.io/cosmjs]. This is a bit
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tricky to navigate and requires basic TypeScript understanding. It is helpful if
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you have want to look up details for advanced use cases. This documentation is
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auto-generated based on the current main branch and can occasionally diverge
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from the latest release.
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[cosmos.github.io/cosmjs]: https://cosmos.github.io/cosmjs
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### Using custom Stargate modules
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Documentation on how to use your own custom modules with CosmJS for Stargate
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chains (Cosmos SDK v0.41) can be found
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[here](https://github.com/cosmos/cosmjs/blob/main/packages/stargate/CUSTOM_PROTOBUF_CODECS.md).
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## Packages
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CosmJS is a library that consists of many smaller npm packages within the
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[@cosmjs namespace](https://www.npmjs.com/org/cosmjs), a so called monorepo.
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Here are some of them to get an idea:
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| Package | Description | Latest |
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| ------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
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| [@cosmjs/stargate](packages/stargate) | A client library for the Cosmos SDK 0.40 (cosmoshub-4), 0.41 and 0.42 (Stargate) | [](https://www.npmjs.com/package/@cosmjs/stargate) |
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| [@cosmjs/launchpad](packages/launchpad) | A client library for the Cosmos SDK 0.37 (cosmoshub-3), 0.38 and 0.39 (Launchpad) | [](https://www.npmjs.com/package/@cosmjs/launchpad) |
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| [@cosmjs/faucet](packages/faucet) | A faucet application for node.js | [](https://www.npmjs.com/package/@cosmjs/faucet) |
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| [@cosmjs/cosmwasm-stargate](packages/cosmwasm-stargate) | Client for Stargate chains with the CosmWasm module enabled | [](https://www.npmjs.com/package/@cosmjs/cosmwasm-stargate) |
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| [@cosmjs/crypto](packages/crypto) | Cryptography for blockchain projects, e.g. hashing (SHA-2, Keccak256, Ripemd160), signing (secp256k1, ed25519), HD key derivation (BIPO39, SLIP-0010), KDFs and symmetric encryption for key storage (PBKDF2, Argon2, XChaCha20Poly1305) | [](https://www.npmjs.com/package/@cosmjs/crypto) |
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| [@cosmjs/encoding](packages/encoding) | Encoding helpers for blockchain projects | [](https://www.npmjs.com/package/@cosmjs/encoding) |
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| [@cosmjs/math](packages/math) | Safe integers; decimals for handling financial amounts | [](https://www.npmjs.com/package/@cosmjs/math) |
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### Modularity
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We're pretty proud of the modularity and a clean dependency tree in this
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monorepo. This ensures software quality on our side and lets users pick exactly
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what they need. Here you see how everything fits together (every item is a npm
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package; right depends on left):
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If this was not enough to scare you away, check out the version including app
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runtime dependencies: [cosmjs-tree-full.png](docs/cosmjs-tree-full.png).
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<!--
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Build with depsight (https://github.com/webmaster128/depsight), using:
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from_npm . | depsight --include "^@cosmjs" --format png --dpi 150 --output docs/cosmjs-tree.png
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from_npm . | depsight --exclude cosmjs-monorepo-root --format png --dpi 150 --output docs/cosmjs-tree-full.png
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optipng docs/cosmjs-tree*.png
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-->
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### Supported JS environments
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Currently the codebase supports the following runtime environments:
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1. Node.js 12+
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2. Modern browsers (Chromium/Firefox/Safari, no Internet Explorer or
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[Edge Spartan](https://en.wikipedia.org/wiki/Microsoft_Edge#Development))
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3. Browser extensions (Chromium/Firefox)
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Our current JavaScript target standard is ES2017, giving us native async/await
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support. We use WebAssembly to implement certain cryptographic functions.
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We're happy to adjust this list according to users' needs as long as you don't
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ask for Internet Explorer support. If your environment does not support Wasm, we
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can work on a solution with swapable implementations.
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## Roadmap
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We maintain a [development board](https://github.com/orgs/cosmos/projects/6),
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use [release milestones](https://github.com/cosmos/cosmjs/milestones) and share
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important updates in the [CosmWasm Community Call]. For higher level roadmap
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discussion please reach out to the team.
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[cosmwasm community call]:
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https://github.com/CosmWasm/cosmwasm/issues?q=label%3A%22Community+Call+%F0%9F%97%BA%F0%9F%93%9E%22
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## Known limitations
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### 0.26
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1. When connecting to a Cosmos SDK 0.44+ backend, the verified queries from
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`AuthExtension` and `BankExtension` as well as
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`StargateClient.getAccountVerified` will fail because the storage keys are
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not stable. Unverified queries can be used instead. Those queries are
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deprecated now and will be removed in 0.27 ([#910]).
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[#910]: https://github.com/cosmos/cosmjs/pull/910
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### 0.25
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1. Decoding blocks of height 1 is unsupported. This is fixed in [#815] and will
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be released as part of CosmJS 0.26.
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[#815]: https://github.com/cosmos/cosmjs/pull/815
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### 0.24
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1. `AuthExtension` and all higher level Stargate clients only support
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`BaseAccount`s for all functionality, including getting account numbers and
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sequences for transaction signing. This will be implemented for all common
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Cosmos SDK account types in the 0.25 series.
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## Get in touch
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The CosmJS development team is happy to get in touch with you for all questions
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and suggestions.
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- [GitHub issues](https://github.com/cosmos/cosmjs/issues) for bugs and feature
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requests
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- The #cosmjs channel on the
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["Cosmos Community" Discord server](https://discord.gg/vcExX9T) for questions
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and open discussions
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- [#CosmJS on Twitter](https://twitter.com/search?q=%23CosmJS) to spread the
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word
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## Development
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See [HACKING.md](HACKING.md).
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