gno-provider.md

Gno Provider

The Gno Provider is an extension on the tm2-js-client Provider, outlined here. Both JSON-RPC and WS providers are included with the package.

Realm Methods

getRenderOutput

Executes the Render() method in read-only mode

Parameters

• packagePath string the gno package path
• path string the render path
• height number the height for querying. If omitted, the latest height is used (optional, default 0)

Returns Promise<string>

Usage

await provider.getRenderOutput('gno.land/r/demo/demo_realm', '');
// ## Hello World!

getFunctionSignatures

Fetches public facing function signatures

Parameters

• packagePath string the gno package path
• height number the height for querying. If omitted, the latest height is used (optional, default 0)

Returns Promise<FunctionSignature[]>

Usage

await provider.getFunctionSignatures('gno.land/r/demo/foo20');
/*
[
  { FuncName: 'TotalSupply', Params: null, Results: [ [Object] ] },
  {
    FuncName: 'BalanceOf',
    Params: [ [Object] ],
    Results: [ [Object] ]
  },
  {
    FuncName: 'Allowance',
    Params: [ [Object], [Object] ],
    Results: [ [Object] ]
  },
  {
    FuncName: 'Transfer',
    Params: [ [Object], [Object] ],
    Results: null
  },
  {
    FuncName: 'Approve',
    Params: [ [Object], [Object] ],
    Results: null
  },
  {
    FuncName: 'TransferFrom',
    Params: [ [Object], [Object], [Object] ],
    Results: null
  },
  { FuncName: 'Faucet', Params: null, Results: null },
  { FuncName: 'Mint', Params: [ [Object], [Object] ], Results: null },
  { FuncName: 'Burn', Params: [ [Object], [Object] ], Results: null },
  { FuncName: 'Render', Params: [ [Object] ], Results: [ [Object] ] }
]
 */

evaluateExpression

Evaluates any expression in readonly mode and returns the results

Parameters

• packagePath string the gno package path
• expression string the expression to be evaluated
• height number the height for querying. If omitted, the latest height is used (optional, default 0)

Returns Promise<string>

Usage

await provider.evaluateExpression('gno.land/r/demo/foo20', 'TotalSupply()')
// (10100000000 uint64)

getFileContent

Fetches the file content, or the list of files if the path is a directory

Parameters

• packagePath string the gno package path
• height number the height for querying. If omitted, the latest height is used (optional, default 0)

Returns Promise<string>

Usage

await provider.getFileContent('gno.land/r/demo/foo20', 'TotalSupply()')
/*
foo20.gno
foo20_test.gno
 */