Insight API Updates

Toomas Oosalu

There are 2 changes to the Insight API to improve usability and fix a numeric overflow in Javascript.

The NFT and Token transfer endpoints have been changed and now the owner_address query param is not mandatory anymore, enabling queries for all transfers on a chain.

Since this query can be heavy, we also added block number filters. You can narrow down the query using block_number_from and block_number_to query params.

Since Solidity supports numbers larger the Javascript's max number, APIs consuming the decoded events and transactions would receive some numeric values in scientific notation, losing precision.

We updated the decoded data to return large numeric values as string to prevent this. This is what a decoded transaction would look like now

{
  "data": [
    {
      ...rest of transaction...
      "decoded": {
        "name": "transfer",
        "signature": "transfer(address,uint256)",
        "inputs": {
          "_to": "0x28c6c06298d514db089934071355e5743bf21d60",
          "_value": "4179950264410000000000"
        }
      }
    }
  ]
}

Note that the _value uint256 input is returned as string 4179950264410000000000

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