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Added /blocks/signature/{signature}/data API

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This returns serialized, base58 encoded data for the entire block. It is the same format as the data sent between nodes when synchronizing, with base58 encoding added so that it can be outputted cleanly in the API response.
This commit is contained in:
CalDescent 2021-05-23 13:10:47 +01:00
parent 39d1590ace
commit 80311355ae
1 changed files with 47 additions and 0 deletions
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47
src/main/java/org/qortal/api/resource/BlocksResource.java
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@ -1,5 +1,6 @@
package org.qortal.api.resource;
import com.google.common.primitives.Ints;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.media.ArraySchema;
@ -8,6 +9,8 @@ import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.responses.ApiResponse;
import io.swagger.v3.oas.annotations.tags.Tag;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;
@ -38,6 +41,8 @@ import org.qortal.data.transaction.TransactionData;
import org.qortal.repository.DataException;
import org.qortal.repository.Repository;
import org.qortal.repository.RepositoryManager;
import org.qortal.transform.TransformationException;
import org.qortal.transform.block.BlockTransformer;
import org.qortal.utils.Base58;
@Path("/blocks")
@ -86,6 +91,48 @@ public class BlocksResource {
}
}
@GET
@Path("/signature/{signature}/data")
@Operation(
summary = "Fetch serialized, base58 encoded block data using base58 signature",
description = "Returns serialized data for the block that matches the given signature",
responses = {
@ApiResponse(
description = "the block data",
content = @Content(mediaType = MediaType.TEXT_PLAIN, schema = @Schema(type = "string"))
)
}
)
@ApiErrors({
ApiError.INVALID_SIGNATURE, ApiError.BLOCK_UNKNOWN, ApiError.INVALID_DATA, ApiError.REPOSITORY_ISSUE
})
public String getSerializedBlockData(@PathParam("signature") String signature58) {
// Decode signature
byte[] signature;
try {
signature = Base58.decode(signature58);
} catch (NumberFormatException e) {
throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_SIGNATURE, e);
}
try (final Repository repository = RepositoryManager.getRepository()) {
BlockData blockData = repository.getBlockRepository().fromSignature(signature);
if (blockData == null)
throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BLOCK_UNKNOWN);
Block block = new Block(repository, blockData);
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bytes.write(Ints.toByteArray(block.getBlockData().getHeight()));
bytes.write(BlockTransformer.toBytes(block));
return Base58.encode(bytes.toByteArray());
} catch (TransformationException e) {
throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_DATA, e);
} catch (DataException | IOException e) {
throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
}
}
@GET
@Path("/signature/{signature}/transactions")
@Operation(