Jaco GreeffandThibaut Sardan
55fb391465
* Make a start * Intro * Installation * Flatten * Move METHODS_*.md to substrate/*.md * Basics * Apply suggestions from code review Co-Authored-By: Thibaut Sardan <33178835+Tbaut@users.noreply.github.com> * Substrate links * Create * api.consts * Typo * Typo, ms -> md * types.basics (SIP) * Type basics * api.consts jumps to api.query * Start to api.query * Basic queries * Point starting to actual overview * api.rpc * Derive detour * Query subs & query multi * Apply suggestions from code review Co-Authored-By: Thibaut Sardan <33178835+Tbaut@users.noreply.github.com> * typo * Query extras * Basic transactions * Misplaced , * keyring WIP * Keyring wrap-up * Subs SIP * tx subs more WIP * tx subs * Small types cleanups * Apply suggested changes from @JoshOrndorff * Clarify naked await * tx wrapping WIP * Wrap api.wrap * TS placeholder * [WIP] markers for not-started * Clarifying comments * Additional clarifications * types.extend... well, extended... * Remove *nix * Warp up TypeScript... it is it (for now) * Some small text clarifications * Some cleanups * Cleanups, typos * keyring cleanups * Cleanups * Wrap * api.wrap wrapped... hopefully * typos * Registration typos * typescript typos, hope I caught most...
ApiPromise Examples
Here you will find a list of examples that takes you through the basics of connecting to a local node, retrieving data from the Node and chain and execute transactions on the chain. It uses the ApiPromise interface.
Prerequisites
For the following examples, you need a local node. It is usually convenient testing with:
substrate --dev
Running the examples
From each folder, run yarn to install the required dependencies and then run yarn start to execute the example against the running node.
Development accounts
Some of the examples use the following accounts:
- Alice:
5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY - Bob:
5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty
Those accounts are easy to add if you don't have/see them. The seed of Alice's account is //Alice (via keyring.addUri(...), dev seed implied) and the seed of Bob is... well you guess...