@pushprotocol/node-core

Push Network Core

This package provides access to the Push Network. Visit the Developer Docs or Push.org to learn more.

Index

• How to use in your app?
  • Installation
  • Import SDK
  • Initialize SDK
  • About Blockchain-Agnostic Address Format
• SDK Features
  • For PushNetwork Blocks
    • Fetch Blocks
    • Search Block by Hash
    • Serialize Block
    • Deserialize Block
  • For PushNetwork Transactions
    • Fetch Transactions
    • Search Transaction by Hash
    • Serialize Transaction
    • Deserialize Transaction
    • Serialize Transaction Payload Data
    • Deserialize Transaction Payload Data

How to use in your app?

Installation

yarn add @pushprotocol/node-core@latest

or

npm install @pushprotocol/node-core@latest

Import SDK

import { PushNetwork } from '@pushprotocol/node-core';

Initialize SDK

// Initialize PushNetwork class instance
const userAlice = await PushNetwork.initialize('staging');

Parameters

Param	Type	Default	Remarks
env *	ENV	staging	API env - 'prod', 'staging'

* - Optional

---

About blockchain agnostic address format

In any of the below methods (unless explicitly stated otherwise) we accept -

• CAIP format: for any on chain addresses We strongly recommend using this address format. Learn more about the format and examples. (Example : eip155:1:0xab16a96d359ec26a11e2c2b3d8f8b8942d5bfcdb)

SDK Features

For PushNetwork Blocks

Initializing PushNetwork class is the first step before proceeding to Block APIs. Please refer Initialize SDK Section

Fetch Blocks

// get block data
const blockRes = await PushNetwork.block.get(
  Math.floor(Date.now() / 1000),
  'DESC',
  true,
  10,
  2
);

Parameters:

Parameter	Type	Default	Description
startTime *	number	Current Local Time	A number represting current time epoch
direction*	ASC DESC	ASC	A string represting direction in which blocks are fetched
showDetails*	boolean	false	A boolean represting whether tx Data shoudl be fetched or not
page*	number	1	A number representing the page of results to retrieve.
pageSize*	number	30	A number representing the maximum number of blocks to retrieve per page.

* - Optional

---

Search Block By Hash

// search block with a given block hash
const blockRes = await PushNetwork.block.search('block-hash');

Parameters:

Parameter	Type	Default	Description
blockHash	string	-	An string represting block hash

* - Optional

---

Serialize Block

import { Block } from '@pushprotocol/node-core';
const serializedBlock = Block.serialize(blockData);

ts: number; txObj: TransactionObj[]; signers: Signer[]; attestToken: Uint8Array;

Parameters:

Parameter	Type	Default	Description
ts	number	-	Block timestamp
txObj	object[]	-	Block Transactions
signers	object[]	-	Block Signers
attestToken	Uint8Array	-	Block Attestation Token

* - Optional

---

Deserialize Block

import { Block } from '@pushprotocol/node-core';
const deserializedBlock = Block.deserialize(blockDataBytes);

Parameters:

Parameter	Type	Default	Description
block	Uint8Array	-	Block encoded in bytes format

* - Optional

---

For PushNetwork Transactions

Initializing PushNetwork class is the first step before proceeding to Transaction APIs. Please refer Initialize SDK Section

Fetch Transactions

// fetch transactions
const txRes = await PushNetwork.tx.get(
  Math.floor(Date.now() / 1000),
  'DESC',
  10,
  2
);

Parameters:

Parameter	Type	Default	Description
startTime *	number	Current Local Time	A number represting current time epoch
direction*	ASC DESC	ASC	A string represting direction in which transactions are fetched
page*	number	1	A number representing the page of results to retrieve.
pageSize*	number	30	A number representing the maximum number of transactions to retrieve per page.
category*	string	-	A string representing the transaction category to be fetched

* - Optional

---

Search Transaction By Hash

// search transaction with a given tx hash
const txRes = await PushNetwork.tx.search('tx-hash');

Parameters:

Parameter	Type	Default	Description
txHash	string	-	An string represting transaction hash

* - Optional

---

Create Unsigned Transaction

// create an unsigned transaction
const unsignedTx = PushNetwork.tx.createUnsigned(
  'CATEGORY',
  ['RECIPIENT1', 'RECIPIENT2'],
  serializedData
);

Parameters:

Parameter	Type	Default	Description
category	string	-	Transaction category
recipients	string[]	-	Array of recipient addresses
data	Uint8Array	-	Serialized transaction payload data

* - Optional

---

Send Transaction

// send a transaction
const txHash = await PushNetwork.tx.send(unsignedTx, {
  sender: 'SENDER_ADDRESS',
  privKey: 'PRIVATE_KEY',
});

Parameters:

Parameter	Type	Default	Description
unsignedTx	Transaction	-	Unsigned transaction object
session *	Object	-	Optional session object for signing

* - Optional

---

Serialize Transaction

import { Tx } from '@pushprotocol/node-core';
const serializedTx = Tx.serialize(txObject);

Parameters:

Parameter	Type	Default	Description
tx	Transaction	-	Transaction object

* - Optional

---

Deserialize Transaction

import { Tx } from '@pushprotocol/node-core';
const deserializedTx = Tx.deserialize(txDataBytes);

Parameters:

Parameter	Type	Default	Description
tx	Uint8Array	-	Tx encoded in bytes format

* - Optional

---

Serialize Transaction Payload Data

import { Tx, TxCategory } from '@pushprotocol/node-core';
const serializedData = Tx.serializeData(txData, TxCategory.INIT_DID);

Parameters:

Parameter	Type	Default	Description
txData	InitDid | InitSessionKey Tx	-	Transaction payload data object
category	TxCategory	-	Transaction category

* - Optional

---

Deserialize Transaction Payload Data

import { Tx, TxCategory } from '@pushprotocol/node-core';
const deserializedData = Tx.deserializeData(
  serializedData,
  TxCategory.INIT_DID
);

Parameters:

Parameter	Type	Default	Description
txData	Uint8Array	-	Serialized transaction payload
category	TxCategory	-	Transaction category supported for Deserialization

* - Optional

---