Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | 50x 50x 50x 50x 7x 50x 17x 11x 6x 6x 3x 3x 50x 10x 10x 10x 8x 8x 8x 8x 4x 4x 2x 1x 1x 50x 4x 6x 6x 6x 6x 50x 5x 50x | import { BlockfrostClientError, isBlockfrostErrorResponse } from '@blockfrost/blockfrost-js/lib/utils/errors';
import { BlockfrostServerError } from '@blockfrost/blockfrost-js';
import {
Cardano,
EraSummary,
Milliseconds,
ProviderError,
ProviderFailure,
ProviderUtil,
statusCodeMapToProviderFailure
} from '@cardano-sdk/core';
import { PaginationOptions } from '@blockfrost/blockfrost-js/lib/types';
export const isBlockfrostNotFoundError = (error: unknown) =>
(error instanceof BlockfrostServerError || isBlockfrostErrorResponse(error)) && error.status_code === 404;
export const blockfrostToProviderError = (error: BlockfrostServerError | BlockfrostClientError | unknown) => {
if (
(error instanceof BlockfrostServerError || isBlockfrostErrorResponse(error)) &&
statusCodeMapToProviderFailure.has(error.status_code)
)
return new ProviderError(statusCodeMapToProviderFailure.get(error.status_code)!, error, `${error.message}`);
else Iif (
isBlockfrostErrorResponse(error) ||
error instanceof BlockfrostClientError ||
error instanceof BlockfrostServerError
)
return new ProviderError(ProviderFailure.Unknown, error, `${error.message}`);
else if (error instanceof ProviderError) {
return error;
}
return new ProviderError(ProviderFailure.Unknown, error);
};
export const fetchSequentially = async <Item, Arg, Response>(
props: {
arg: Arg;
request: (arg: Arg, pagination: PaginationOptions) => Promise<Response[]>;
responseTranslator?: (response: Response[], arg: Arg) => Item[];
/**
* @returns true to indicate that current result set should be returned
*/
haveEnoughItems?: (items: Item[]) => boolean;
paginationOptions?: PaginationOptions;
},
page = 1,
accumulated: Item[] = []
): Promise<Item[]> => {
props.paginationOptions = props.paginationOptions || { count: 100 };
try {
const response = await props.request(props.arg, { ...props.paginationOptions, page });
const maybeTranslatedResponse = props.responseTranslator ? props.responseTranslator(response, props.arg) : response;
const newAccumulatedItems = [...accumulated, ...maybeTranslatedResponse] as Item[];
const haveEnoughItems = props.haveEnoughItems?.(newAccumulatedItems);
if (response.length === props.paginationOptions.count && !haveEnoughItems) {
return fetchSequentially<Item, Arg, Response>(props, page + 1, newAccumulatedItems);
}
return newAccumulatedItems;
} catch (error) {
if (isBlockfrostNotFoundError(error)) {
return [];
}
throw error;
}
};
/**
* Maps txs metadata from blockfrost into to a TxMetadata
*
* @returns {Cardano.TxMetadata} map with bigint as key and Metadatum as value
*/
export const blockfrostMetadataToTxMetadata = (
metadata: {
label: string;
json_metadata: unknown;
}[]
): Cardano.TxMetadata =>
metadata.reduce((map, metadatum) => {
const { json_metadata, label } = metadatum;
Iif (!json_metadata || !label) return map;
map.set(BigInt(label), ProviderUtil.jsonToMetadatum(json_metadata));
return map;
}, new Map<bigint, Cardano.Metadatum>());
export const fetchByAddressSequentially = async <Item, Response>(props: {
address: Cardano.PaymentAddress;
request: (address: Cardano.PaymentAddress, pagination: PaginationOptions) => Promise<Response[]>;
responseTranslator?: (address: Cardano.PaymentAddress, response: Response[]) => Item[];
/**
* @returns true to indicate that current result set should be returned
*/
haveEnoughItems?: (items: Item[]) => boolean;
paginationOptions?: PaginationOptions;
}): Promise<Item[]> =>
fetchSequentially({
arg: props.address,
haveEnoughItems: props.haveEnoughItems,
paginationOptions: props.paginationOptions,
request: props.request,
responseTranslator: props.responseTranslator
? (response, arg) => props.responseTranslator!(arg, response)
: undefined
});
// copied from util-dev
export const testnetEraSummaries: EraSummary[] = [
{
parameters: { epochLength: 21_600, slotLength: Milliseconds(20_000) },
start: { slot: 0, time: new Date(1_563_999_616_000) }
},
{
parameters: { epochLength: 432_000, slotLength: Milliseconds(1000) },
start: { slot: 1_598_400, time: new Date(1_595_967_616_000) }
}
];
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