Get Started/Builder Tools/NOWNodes.io

[AnnaNodes]

Discussed in https://github.com/cardano-foundation/developer-portal/discussions/161

^{Originally posted by katomm July 16, 2021} Please reply here if you have a topic suggestion for the Developer Portal. (unless the suggestion is worth opening its own issue) - if possible please also name the category where the suggested content is missing.

Hello,

We are a node provider NOWNodes.io. Would you kindly add the page about our service to the Cardano documentation, as so we are providing access to a Cardano node.

Get Started/Builder Tools/NOWNodes.io

---

id: NOWNodes.io title: Free API key on NOWNodes.io sidebar_label: NOWNodes.io description: Getting started for free with NOWNodes.io image: NN logo 2---

Get free API key on NOWNodes.io

A blockchain as a service for nodes and block explorers via API. NowNodes is a great opportunity to join ADA blockchain or to lighten your crypto infrastructure. Connect to full ADA node, block explorer and testnet now!

💻 You can get a free API key now at NOWNodes.io and start coding your next product.

NOWNodes is a blockchain-as-a-service solution that lets users get access to full nodes (shared & dedicated nodes on mainnet & testnet + archived nodes) and block explorers via API key. The service provides access to almost 60 most popular blockchain networks.

NOWNodes provides a high-quality, quick, cost-effective, and reliable infrastructure for developers, start-ups, and businesses that are developing Web 3 projects on the blockchain. The service handles the cost and expertise connected with node maintenance and gives users time to focus on their project rather than node engineering and setup.

By leveraging the power of a blockchain full node, users can access data surrounding the hash rate, block height, wallet addresses, transaction data, balance history tickers list, or anything else that they need. Major projects that need access to the full nodes are crypto wallets, exchanges, payment systems, stock markets, etc.

Vision

“Easy access to multiple blockchain networks lets developers, startups, and businesses focus on projects’ development and scalability in favour of Web 3 growth.”

Mission

“Providing high-quality, cost-effective, and reliable node infrastructure simplifies blockchain integration into your project.”

###Features and Services

• REST API: NOWNodes uses these APIs to build a blockchain in a quick time and manage it effectively. That said, you need to have a basic knowledge of blockchain to use NOWNodes.
• Security: The company understands the importance of offering secure connectivity to manage nodes and transactions. The nodes are monitored to ensure high-level data security.
• Low-Latency: The architecture is designed in a way to offer low-latency and fast services. The APIs can be connected and run on multiple data centres at once without comprising the speed of the transactions.
• 24*7 Access: The company’s servers are always active and accessible. Business will be up and running round the clock on a stable network. This will ensure that users don’t experience any difficulty during their crypto transactions.
• Immediate Deployment: The biggest advantage of NOWNodes is that you don’t need to set up nodes on your own. Simply use the API documentation to gain access and get started. Startups, small, medium, and large enterprises, and nonprofit organisations will find it easy to use NOWNodes for their blockchain infrastructure.

Steps to use NOWNodes

Register on NOWNodes website, choose a plan that most fits your needs or start using free API key, simply pick a node address and commands from NOWNodes documentation and send your request.

API Key header

When you sign up on https://www.nownodes.io and choose your free plan, then you can create your x-api-key. You must include the HTTP header x-api-key in every request in order to authenticate the API calls.

:::tip FULL API REFERENCE

Check our API full reference documentation here https://documenter.getpostman.com/view/13630829/TVmFkLwy

:::

Example: Balance

POSTbalance

https://ada.nownodes.io/v2/wallets/{walletId}/transactions-balance

Balance a transaction body of a given transaction, add needed inputs/outputs, so as the transaction can be signed from the wallet.

Example Request

curl --location -g --request POST 'https://ada.nownodes.io/v2/wallets/{walletId}/transactions-balance' \
--header 'api-key: your api-key' \
--header 'Content-Type: application/json' \
--data-raw '{
  "transaction": {
    "cborHex": "string",
    "description": "Asset minting transaction",
    "type": "string"
  },
  "signatories": [
    "1423856bc91c49e928f6f30f4e8d665d53eb4ab6028bd0ac971809d514c92db11423856bc91c49e928f6f30f4e8d665d53eb4ab6028bd0ac971809d514c92db1"
  ],
  "inputs": [
    {
      "txIn": "2f8cd2ef706e5500307636b8477198ee2f204c4181b53c507f46d195140493cb#1",
      "txOut": {
        "address": "addr1sjck9mdmfyhzvjhydcjllgj9vjvl522w0573ncustrrr2rg7h9azg4cyqd36yyd48t5ut72hgld0fg2xfvz82xgwh7wal6g2xt8n996s3xvu5g",
        "data": "ca54c8836c475a77c6914b4fd598080acadb0f0067778773484d2c12ae7dc756",
        "value": [
          {
            "lovelace": 1423
          },
          {
            "lovelace": 1423,
            "7191ae0e1286891fe5c027a5dc041b7401689938e18e14ec83cf74fb": {
              "asset1": 12,
              "asset2": 33
            }
          }
        ]
      }
    }
  ]
}'

Example Response

{
  "transaction": "string",
  "coin_selection": {
    "inputs": [
      {
        "address": "addr1sjck9mdmfyhzvjhydcjllgj9vjvl522w0573ncustrrr2rg7h9azg4cyqd36yyd48t5ut72hgld0fg2xfvz82xgwh7wal6g2xt8n996s3xvu5g",
        "amount": {
          "quantity": 42000000,
          "unit": "lovelace"
        },
        "assets": [
          {
            "policy_id": "65ab82542b0ca20391caaf66a4d4d7897d281f9c136cd3513136945b",
            "asset_name": "",
            "quantity": 0
          }
        ],
        "id": "1423856bc91c49e928f6f30f4e8d665d53eb4ab6028bd0ac971809d514c92db1",
        "derivation_path": [
          "1852H"
        ],
        "index": 0
      }
    ],
    "outputs": [
      {
        "address": "addr1sjck9mdmfyhzvjhydcjllgj9vjvl522w0573ncustrrr2rg7h9azg4cyqd36yyd48t5ut72hgld0fg2xfvz82xgwh7wal6g2xt8n996s3xvu5g",
        "amount": {
          "quantity": 42000000,
          "unit": "lovelace"
        },
        "assets": [
          {
            "policy_id": "65ab82542b0ca20391caaf66a4d4d7897d281f9c136cd3513136945b",
            "asset_name": "",
            "quantity": 0
          }
        ]
      }
    ],
    "change": [
      {
        "address": "addr1sjck9mdmfyhzvjhydcjllgj9vjvl522w0573ncustrrr2rg7h9azg4cyqd36yyd48t5ut72hgld0fg2xfvz82xgwh7wal6g2xt8n996s3xvu5g",
        "amount": {
          "quantity": 42000000,
          "unit": "lovelace"
        },
        "assets": [
          {
            "policy_id": "65ab82542b0ca20391caaf66a4d4d7897d281f9c136cd3513136945b",
            "asset_name": "",
            "quantity": 0
          }
        ],
        "derivation_path": [
          "1852H"
        ]
      }
    ],
    "collateral": [
      {
        "address": "addr1sjck9mdmfyhzvjhydcjllgj9vjvl522w0573ncustrrr2rg7h9azg4cyqd36yyd48t5ut72hgld0fg2xfvz82xgwh7wal6g2xt8n996s3xvu5g",
        "amount": {
          "quantity": 42000000,
          "unit": "lovelace"
        },
        "id": "1423856bc91c49e928f6f30f4e8d665d53eb4ab6028bd0ac971809d514c92db1",
        "derivation_path": [
          "1852H"
        ],
        "index": 0
      }
    ],
    "withdrawals": [
      {
        "stake_address": "stake1sjck9mdmfyhzvjhydcjllgj9vjvl522w0573ncustrrr2rg7h9azg4cyqd36yyd48t5ut72hgld0fg2x",
        "derivation_path": [
          "1852H"
        ],
        "amount": {
          "quantity": 42000000,
          "unit": "lovelace"
        }
      }
    ],
    "certificates": [
      {
        "certificate_type": "join_pool",
        "pool": "pool1wqaz0q0zhtxlgn0ewssevn2mrtm30fgh2g7hr7z9rj5856457mm",
        "reward_account_path": [
          "string",
          "string",
          "string",
          "string",
          "string"
        ]
      }
    ],
    "deposits": [
      {
        "quantity": 42000000,
        "unit": "lovelace"
      }
    ],
    "metadata": "string"
  },
  "fee": {
    "quantity": 42000000,
    "unit": "lovelace"
  }
}

Methods

1. Estimate fee
2. Create transaction
3. Wallets
4. Migrate
5. Create a migration plan
6. Sign
7. Balance
8. Construct

MORE INFO

https://documenter.getpostman.com/view/13630829/TVmFkLwy#88923856-92e7-4a94-960a-d2cf5beb8883