Adding new query functions

Update the query schema & module#

With our mutation implementation complete, it's now time to move onto the schema module. The steps are almost identical to above.

Update the ./src/query/schema.graphql file like so:

./src/query/schema.graphql

...
#import { Query } into Ipfs from "w3://ens/ipfs.web3api.eth"

type Query {
  ...

  getIpfsData(
    address: String!
    connection: Ethereum_Connection
  ): String!
}

Implement the getIpfsData(...) method like so in ./src/query/index.ts:

./src/query/index.ts

import {
  Ethereum_Query,
  Ipfs_Query,
  Input_getData,
  Input_getIpfsData
} from './w3';

...

export function getIpfsData(input: Input_getIpfsData): string {
  const hash = Ethereum_Query.callContractView({
    address: input.address,
    method: 'function getHash() view returns (string)',
    args: [],
    connection: input.connection,
  });

  return String.UTF8.decode(
    Ipfs_Query.catFile({ cid: hash })
  );
}

To verify everything is implemented correctly, try running yarn build and see if the Polywrap build succeeds.