cosmos-sdk/docs/light/getting_started.md

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Getting Started

To start a rest server, we need to specify the following parameters:

Parameter Type Default Required Description
chain-id string null true chain id of the full node to connect
node URL "tcp://localhost:46657" true address of the full node to connect
laddr URL "tcp://localhost:1317" true address to run the rest server on
trust-node bool "false" true Whether this LCD is connected to a trusted full node
trust-store DIRECTORY "$HOME/.lcd" false directory for save checkpoints and validator sets

Sample command:

gaiacli light-client --chain-id=test --laddr=tcp://localhost:1317  --node tcp://localhost:46657 --trust-node=false

Gaia Light Use Cases

LCD could be very helpful for related service providers. For a wallet service provider, LCD could make transaction faster and more reliable in the following cases.

Create an account

deposit

First you need to get a new seed phrase :get-seed

After having new seed, you could generate a new account with it : keys

Transfer a token

transfer

The first step is to build an asset transfer transaction. Here we can post all necessary parameters to /create_transfer to get the unsigned transaction byte array. Refer to this link for detailed operation: build transaction

Then sign the returned transaction byte array with users' private key. Finally broadcast the signed transaction. Refer to this link for how to broadcast the signed transaction: broadcast transaction