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Example Node Extension with Jest

A Node Extension that gets the block from the network, where the result.transactions is a list of transaction hashes. This is an example of a Node Extension that can be used as a template for creating your own Node Extension. It has the Jest testing library pre-installed.

Installation

Fork the repository or download the source code.

Usage

Replace with your own code. The actions folder contains the source code for the Node Extension. The test folder contains the tests for the Node Extension.

Request

Parameters

BLOCK_HASH_OR_TAG: A block hash or tag. It can be a positive integer or a hex-based string. E.g. 100004 or "0x1212".

Example:

{
  "id": 0,
  "jsonrpc": "2.0",
  "method": "extension_example",
  "params": [100004]
}

Response

Example:

{
  "id": 0,
  "jsonrpc": "2.0",
  "result": {
    "_difficulty": {
      "hex": "0x03803be23db1",
      "type": "BigNumber"
    },
    "difficulty": 3849295379889,
    "extraData": "0x476574682f76312e302e312d39383130306634372f6c696e75782f676f312e34",
    "gasLimit": {
      "hex": "0x2fefd8",
      "type": "BigNumber"
    },
    "gasUsed": {
      "hex": "0x5208",
      "type": "BigNumber"
    },
    "hash": "0xf93283571ae16dcecbe1816adc126954a739350cd1523a1559eabeae155fbb63",
    "miner": "0x909755D480A27911cB7EeeB5edB918fae50883c0",
    "nonce": "0x1a455280001cc3f8",
    "number": 100004,
    "parentHash": "0x73d88d376f6b4d232d70dc950d9515fad3b5aa241937e362fdbfd74d1c901781",
    "timestamp": 1439799168,
    "transactions": [
      "0x6f12399cc2cb42bed5b267899b08a847552e8c42a64f5eb128c1bcbd1974fb0c"
    ]
  }
}