GraphiQL

14min

﻿Overview﻿
GraphiQL is a fantastic tool to help you get information quickly with various GraphiQL﻿ and gives you the ability to explore a schema using GraphQL in an efficient way.
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What is GraphQL?
GraphQL is an open-source data query and manipulation language for APIs, and a runtime for fulfilling queries with existing data that provides a powerful and flexible approach to developing web APIs.
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Query Types
There are 2 main query types in the GraphQL schema for the Palm network:
Query
Subscription 
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Query | Fetch Data
Query Types
Details
Fields 
Arguments
address
Gets an address by
contractCode: Data
fetchedCoinBalance: Wei
fetchedCoinBalanceBlockNumber: Int
hash: AddressHash
smartContract: SmartContract
transactions(
after: String
before: String
count: Int
first: Int
last: Int): TransactionConnection
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addresses
Gets addresses by address hash type
same as above ^
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block
Gets a block by number.
consensus: Boolean
difficulty: Decimal
gasLimit: Decimal
gasUsed: Decimal
hash: FullHash
minerHash: AddressHash
nonce: NonceHash
number: Int
parentHash: FullHash
size: Int
timestamp: DateTime
totalDifficulty: Decimal
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tokenTransfers
Gets token transfers by token contract address hash.
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after: String
before: String
count: Int
first: Int
last: Int
tokenContractAddressHash: AddressHash!
Example | Transaction
You can use the transaction  query to get a transaction's info using a transaction hash. 
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Example | Block
You can use the block  query to get a block's info using the block number. 
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Subscription | Subscribe to Real-time Data
Subscriptions are useful for notified your client in realtime when the back-end data changes. Unlike queries, subscriptions are long lasting operations that can change their result over time because they maintain an active connection with your GraphQL server.
Example | Token Transfers
GraphQL
|
subscription {
  tokenTransfers(
    tokenContractAddressHash: "0xcaffa4b5f72a44c75f796e94f22debd6369f04fc"
  ) {
    blockNumber
    amount
    fromAddressHash
    toAddressHash
    tokenId
    id
  }
}
subscription {
  tokenTransfers(
    tokenContractAddressHash: "0xcaffa4b5f72a44c75f796e94f22debd6369f04fc"
  ) {
    blockNumber
    amount
    fromAddressHash
    toAddressHash
    tokenId
    id
  }
}
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🏁 Additional Resources
﻿Example Queries﻿ 
﻿Example Query | Retrieve Transaction for a Specific Address﻿
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Updated 13 Sep 2023

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TABLE OF CONTENTS

Example | Transaction

Example | Block

Subscription | Subscribe to Real-time Data

Example | Token Transfers

🏁 Additional Resources

Query Types	Details	Fields	Arguments
address	Gets an address by	contractCode: Data fetchedCoinBalance: Wei fetchedCoinBalanceBlockNumber: Int hash: AddressHash smartContract: SmartContract transactions( after: String before: String count: Int first: Int last: Int): TransactionConnection
addresses	Gets addresses by address hash type	same as above ^
block	Gets a block by number.	consensus: Boolean difficulty: Decimal gasLimit: Decimal gasUsed: Decimal hash: FullHash minerHash: AddressHash nonce: NonceHash number: Int parentHash: FullHash size: Int timestamp: DateTime totalDifficulty: Decimal
tokenTransfers	Gets token transfers by token contract address hash.		after: String before: String count: Int first: Int last: Int tokenContractAddressHash: AddressHash!

GraphiQL

﻿Overview﻿

What is GraphQL?

Query Types

Query | Fetch Data

Example | Transaction

Example | Block

Subscription | Subscribe to Real-time Data

Example | Token Transfers

🏁 Additional Resources

Overview