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68 changes: 68 additions & 0 deletions
68
concordium-sdk-examples/src/main/java/com/concordium/sdk/examples/Cis2.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| package com.concordium.sdk.examples; | ||
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|
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| import com.concordium.sdk.ClientV2; | ||
| import com.concordium.sdk.Connection; | ||
| import com.concordium.sdk.cis2.BalanceQuery; | ||
| import com.concordium.sdk.cis2.Cis2Client; | ||
| import com.concordium.sdk.cis2.TokenAmount; | ||
| import com.concordium.sdk.cis2.TokenId; | ||
| import com.concordium.sdk.exceptions.ClientInitializationException; | ||
| import com.concordium.sdk.requests.BlockQuery; | ||
| import com.concordium.sdk.transactions.Hash; | ||
| import com.concordium.sdk.types.AbstractAddress; | ||
| import com.concordium.sdk.types.AccountAddress; | ||
| import com.concordium.sdk.types.ContractAddress; | ||
| import lombok.val; | ||
| import picocli.CommandLine; | ||
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| import java.net.MalformedURLException; | ||
| import java.net.URL; | ||
| import java.util.concurrent.Callable; | ||
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| /** | ||
| * Example usage of the CIS2 client | ||
| */ | ||
| @CommandLine.Command(name = "Cis2", mixinStandardHelpOptions = true) | ||
| public class Cis2 implements Callable<Integer> { | ||
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| @CommandLine.Option( | ||
| names = {"--endpoint"}, | ||
| description = "GRPC interface of the node.", | ||
| defaultValue = "http://localhost:20000") | ||
| private String endpoint; | ||
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| @CommandLine.Option( | ||
| names = {"--index"}, | ||
| description = "Index of the contract.", | ||
| defaultValue = "9390") | ||
| private long contractIndex; | ||
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| @Override | ||
| public Integer call() throws ClientInitializationException, MalformedURLException { | ||
| URL endpointUrl = new URL(this.endpoint); | ||
| val client = Cis2Client.newClient(ClientV2.from(Connection.newBuilder() | ||
| .host(endpointUrl.getHost()) | ||
| .port(endpointUrl.getPort()) | ||
| .build()), ContractAddress.from(contractIndex, 0)); | ||
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| val eventsForBlock = client.getEventsFor(BlockQuery.HASH(Hash.from("cfd9a3de1b7de2d2942f80b102135bcc8553f472c53c6c8074110aba38bca43c"))); | ||
| while (eventsForBlock.hasNext()) { | ||
| System.out.println(eventsForBlock.next()); | ||
| } | ||
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| val balances = client.balanceOf(new BalanceQuery(TokenId.min(), AccountAddress.from("3rXssmPErqhHvDMByFLCEydYAJwot7ZkL7xcu8y296iMJxwNGC"))); | ||
| for (BalanceQuery balanceQuery : balances.keySet()) { | ||
| TokenId tokenId = balanceQuery.getTokenId(); | ||
| AbstractAddress owner = balanceQuery.getAddress(); | ||
| TokenAmount balance = balances.get(balanceQuery); | ||
| System.out.println("TokenId: " + tokenId + " Owner: " + owner + " Balance " + balance); | ||
| } | ||
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| return 0; | ||
| } | ||
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| public static void main(String[] args) { | ||
| int exitCode = new CommandLine(new Cis2()).execute(args); | ||
| System.exit(exitCode); | ||
| } | ||
| } |
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32 changes: 32 additions & 0 deletions
32
concordium-sdk/src/main/java/com/concordium/sdk/cis2/BalanceQuery.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,32 @@ | ||
| package com.concordium.sdk.cis2; | ||
|
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| import com.concordium.sdk.types.AbstractAddress; | ||
| import lombok.EqualsAndHashCode; | ||
| import lombok.Getter; | ||
| import lombok.ToString; | ||
|
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| /** | ||
| * An object used for querying token balances. | ||
| * See <a href="https://proposals.concordium.software/CIS/cis-2.html#balanceof">here</a> for the specification. | ||
| */ | ||
| @Getter | ||
| @ToString | ||
| @EqualsAndHashCode | ||
| public class BalanceQuery { | ||
|
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| /** | ||
| * The token id to query | ||
| */ | ||
| private final TokenId tokenId; | ||
|
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| /** | ||
| * The address to query the balance of | ||
| */ | ||
| private final AbstractAddress address; | ||
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| public BalanceQuery(TokenId tokenId, AbstractAddress address) { | ||
| this.tokenId = tokenId; | ||
| this.address = address; | ||
| } | ||
|
|
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| } |
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