Query Data with Playground

If you want to quickly try various APIs provided by OCAP service, you can go to OCAP Playground. Learn more about OCAP Playground Quick Start Tour.

Say that you're interested in how coins are transferred to BitCoin wallet 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa. Without ArcBlock OCAP, you probably need to setup your own bitcoin node, learn its RPC, and then write code to get that information. If you use OCAP service, you could do that easily:

{
  transactionsByAddress(receiver: "1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa", paging: {size: 10}) {
    data {
      historyPrice
      priceInUsd
      time
      blockHeight
      hash
      total
      inputs {
        data {
          script
          scriptType
        }
      }
      outputs {
        data {
          script
          scriptType
          index
        }
      }
    }
  }
}

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This is a GraphQL query. Basically it says: give 10 transactions whose receiver is 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa with the fields I want. If you find the query is hard to understand you could jump to quick tour to public chains.

You can copy this query and paste it to https://ocap.arcblock.io. After running it you'll get:

{
  "data": {
    "transactionsByAddress": {
      "data": [
        {
          "total": 590677,
          "time": "2018-11-11T17:55:55.323Z",
          "priceInUsd": 5566.4042687225,
          "outputs": {
            "data": [
              {
                "scriptType": "P2PKH",
                "script": "76a91462e907b15cbf27d5425399ebf6f0fb50ebb88f1888ac",
                "index": 0
              },
              {
                "scriptType": "P2PKH",
                "script": "76a914a8ab0fa7c037ca461cb7790cca029df50b41243e88ac",
                "index": 1
              }
            ]
          },
          "inputs": {
            "data": [
              {
                "scriptType": "P2PKH",
                "script": "47304402206cd4691e8a75848fe32a4b3a13cabe154c8532d92bab1d469d45999b3269718f02204fdcc949b949bbe896baa7f6654100bcb9936f32ea9c66f2c7d1765cddfc168c01210260fad7afe4c6b666cdabc95f1bfbe4a246535bd582bd98219de570a7fcea2e05"
              }
            ]
          },
          "historyPrice": "6350.17",
          "hash": "f706263ff144468af269d8ec3745b2fa9f615f19e8368da99a4d7b4379fc5885",
          "blockHeight": 549694
        }
        ...
      ]
    }
  }
}

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This is a standard response from our GraphQL server. If the query is valid and we can find the related data, the result will be in data. Otherwise, an error field will describe what's wrong with the query.

# Query Data with Playground

Query Data with Playground