bakana-remotes/src/utils.js

Fetch remote single-cell RNA-seq datasets for input into the bakana analysis pipeline.

import * as bioc from "bioconductor";

export function cloneCached(x, cached) {
    return (cached ? bioc.CLONE(x) : x);
}

/**
 * A representation of a matrix of expression values, where the values are hosted on the Wasm heap for easier compute via [**scran.js**](https://github.com/jkanche/scran.js).
 * See [here](https://jkanche.github.io/scran.js/ScranMatrix.html) for more details.
 *
 * @external ScranMatrix
 */ 

/**
 * A representation of multiple {@linkplain external:ScranMatrix ScranMatrix} objects, where each object contains data for the same cells but across a different feature space, e.g., for different data modalities.
 * See [here](https://jkanche.github.io/scran.js/MultiMatrix.html) for more details.
 *
 * @external MultiMatrix
 */ 


/**
 * A DataFrame from the [**bioconductor**](https://github.com/LTLA/bioconductor.js) package, where each column is represented by some arbitrary vector-like object.
 * See [here](https://ltla.github.io/bioconductor.js/DataFrame.html) for more details.
 *
 * @external DataFrame
 */ 

/**
 * Representation of a file that is agnostic to the environment (Node.js or browser) or the nature of the contents (buffer or file path).
 * See [here](https://ltla.github.io/bakana/SimpleFile.html) for more details.
 *
 * @external SimpleFile
 */ 

export async function defaultDownload(u) {
    const res = await fetch(u);
    if (res.ok) {
        throw new Error("failed to fetch '" + u + "' (" + String(resp.status) + ")");
    }
    return new Uint8Array(await res.arrayBuffer());
}