valor-sdk/src/ledger_call_builder.js

valor-sdk is a library for working with the Valor Horizon server.

import {CallBuilder} from "./call_builder";

export class LedgerCallBuilder extends CallBuilder {
    /**
     * Creates a new {@link LedgerCallBuilder} pointed to server defined by serverUrl.
     *
     * Do not create this object directly, use {@link Server#ledgers}.
     * @see [All Ledgers](https://www.stellar.org/developers/horizon/reference/ledgers-all.html)
     * @constructor
     * @extends CallBuilder
     * @param {string} serverUrl Horizon server URL.
     */
    constructor(serverUrl) {
        super(serverUrl);
        this.url.segment('ledgers');
    }

    /**
     * Provides information on a single ledger.
     * @param {number|string} sequence Ledger sequence
     * @returns {LedgerCallBuilder}
     */
    ledger(sequence) {
        this.filter.push(['ledgers', sequence.toString()]);
        return this;
    }

}