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This is a Next.js project bootstrapped with create-next-app.

Getting Started

First, run the development server:

npm i
npm run dev
# or
yarn
yarn dev

Open http://localhost:3000 with your browser to see the result.

You can start editing the page by modifying pages/index.js. The page auto-updates as you edit the file.

API routes can be accessed on http://localhost:3000/api/hello. This endpoint can be edited in pages/api/hello.js.

The pages/api directory is mapped to /api/*. Files in this directory are treated as API routes instead of React pages.

Signing Pending transaction via CLI

After the transaction has been generated via webpage a signature request id is generated, this id is used to retrieve the transaction RLP, which is used for signing with flow cli. "localhost" is used only for examples. This service is hosted in vercel.

curl to get RLP

  • curl -l http://localhost:3000/api/pending/rlp/b6d2aab4160c5ce2d26d752d4a312922970863e2ba324a2d8d31a6ce4b61661e > sign-cli.rlp
  • save the RLP to a local file for signing, in this example sign-cli.rlp is used

Sign the RLP using flow cli and save the output signature RLP to sign-cli-signed.rlp

  • flow transactions sign ./sign-cli.rlp --signer ####### --filter payload --yes --save ./sign-cli-signed.rlp

Send the signed RLP raw text to the server

  • curl -H "Content-Type: application/text" -d @sign-cli-signed.rlp http://localhost:3000/api/pending/sig/b6d2aab4160c5ce2d26d752d4a312922970863e2ba324a2d8d31a6ce4b61661e

flow cli to get RLP

  • flow transactions sign --from-remote-url http://localhost:3000/api/pending/rlp/b6d2aab4160c5ce2d26d752d4a312922970863e2ba324a2d8d31a6ce4b61661e --signer <account>
  • account in this example is an entry in flow.json file

Query parameters to webapp

  • "type" is of value "foundation" or "service"
    • "foundation" will pull scripts from foundation github
    • "service" will pull scripts from service-account github
  • "name" is the name of the script to load, ie. "hello.cdc"
  • "param" is the json parameters to pass into the cadence script
  • "acct" is the multiple signature account

Example: http://localhost:3000/testnet?type=foundation&name=hello.cdc&param=[]&acct=0xc590d541b72f0ac1

Multisig Bash Script Helper

location of helper script multisig.sh

Usage:
-c: (required) 'get' to retreive RLP or 'post' to send signed RLP to server
-i: (required) Signature Request Id of pending transaction
  • Command (-c)
    • get makes a GET request to get pending transaction RLP
    • post makes a POST request to post signed RLP
  • Identifier (-i)
    • Signature Request Id is the hash identifier of the pending transaction that needs to be signed

Example using shell script

  • ./multisig.sh -c get -i b6d2aab4160c5ce2d26d752d4a312922970863e2ba324a2d8d31a6ce4b61661e

  • flow transactions sign ./sign-cli.rlp --signer ####### --filter payload --yes --save ./sign-cli-signed.rlp

  • ./multisig.sh -c post -i b6d2aab4160c5ce2d26d752d4a312922970863e2ba324a2d8d31a6ce4b61661e

Learn More about Next.js

To learn more about Next.js, take a look at the following resources:

You can check out the Next.js GitHub repository - your feedback and contributions are welcome!

Deploy on Vercel

The easiest way to deploy your Next.js app is to use the Vercel Platform from the creators of Next.js.

Check out our Next.js deployment documentation for more details.

Set up flow

Install/setup Flow CLI brew install flow-cli https://docs.onflow.org/flow-cli/install/

Get Service Account information flow init flow keys generate

Create Account and fund

https://testnet-faucet.onflow.org/ Add public key from flow keys generate command