# 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...