@effectai/sdk/dist/utils/keys.js

Effect Network Javscript/Typescript SDK (for [https://effect.network](https://effect.network))

import { ABIEncoder, Checksum256, Name, UInt32, UInt64, } from "@wharfkit/antelope";
import { VAddress } from "./variants";
export function createCompositeU64Key(lowerId, upperId) {
    // Check if lowerId or upperId isn't of type number
    if (typeof lowerId !== "number" || typeof upperId !== "number") {
        throw new TypeError("Both lowerId and upperId must be numbers");
    }
    const byteArray = new Uint8Array(8);
    byteArray.set(UInt32.from(lowerId).byteArray, 0);
    byteArray.set(UInt32.from(upperId).byteArray, 4);
    return UInt64.from(byteArray);
}
export const generateCheckSumForVAccount = (actor, tokenContract) => {
    const enc = new ABIEncoder(32);
    Name.from(tokenContract).toABI(enc);
    const vaddr = VAddress.from(actor);
    enc.writeByte(vaddr.variantIdx);
    vaddr.value.toABI(enc);
    const arr = new Uint8Array(32);
    arr.set(enc.getData(), 0);
    const keycs = Checksum256.from(arr);
    return keycs;
};
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