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Javascript Feed Walkthrough

Create a private Switchboard queue and oracle and fulfill your own oracle updates

Install

npm i

Usage

Directory

Simulate an OracleJob
Create a Devnet Feed
Create a Private Switchboard Network
Create a Feed with the CLI

Simulate an OracleJob

Edit the OracleJob file src/oracle-job.json, then run

ts-node src/simulate

Create a Devnet Feed

You can create your own feeds using the devnet permissionless network. This network does NOT require the queue authority to grant you permissions so you are free to use it as a testing environment.

You do NOT need to run your own oracles for this network.

Edit the OracleJob file src/oracle-job.json, then run

ts-node src/devnet

Optionally, provide these env variables

RPC_URL=https://my_custom_rpc_url.com \
PAYER_KEYPAIR=~/my_keypair.json \
ts-node src/devnet

Create a Private Switchboard Network

You can also create your own private Switchboard network and run your own oracles. This requires you to run your own oracles for this network.

The following script will

Create a private queue and crank
Create a new data feed on this network
Start a local oracle
Call OpenRound and await the updated result from your local oracle

ts-node src/private-queue

Optionally, provide these env variables

RPC_URL=https://my_custom_rpc_url.com \
PAYER_KEYPAIR=~/my_keypair.json \
ts-node src/private-queue

Create a Feed with the CLI

First install the sbv2 cli

npm install -g @switchboard-xyz

Then run the following command to create your own feed using the devnet permissionless queue and crank

export QUEUE_KEY=uPeRMdfPmrPqgRWSrjAnAkH78RqAhe5kXoW6vBYRqFX
export CRANK_KEY=GN9jjCy2THzZxhYqZETmPM3my8vg4R5JyNkgULddUMa5
sbv2 solana aggregator create "$QUEUE_KEY" \
    --keypair ~/.config/solana/id.json \
    --crankKey "$CRANK_KEY" \
    --name "My_Test_Feed" \
    --updateInterval 10 \
    --minOracles 1 \
    --batchSize 1 \
    --leaseAmount 0.1 \
    --job ./src/oracle-job.json \
    --verbose

Then request an update for your new feed

sbv2 solana aggregator update $AGGREGATOR_KEY \
    --keypair ~/.config/solana/id.json

NOTE: You can provide multiple --job flags to add additional oracle jobs to your data feed

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