Invalid signature

janlev · December 18, 2023, 3:16pm

Hey @Pausonbigi , we have an official SDK for Javascript.

You are more than welcome to use that one.
If you’re still curios on how we generate the JWT using our SDK, you may use our logic in our official SDK:

github.com

fireblocks/fireblocks-sdk-js/blob/master/src/api-token-provider.ts

import { IAuthProvider } from "./iauth-provider";
import * as jwt from "jsonwebtoken";
import * as crypto from "crypto";
import { v4 as uuid } from "uuid";

export class ApiTokenProvider implements IAuthProvider {

    constructor(private privateKey: string, private apiKey: string) { }

    signJwt(path: string, bodyJson?: any): string {
        const token =  jwt.sign({
            uri: path,
            nonce: uuid(),
            iat: Math.floor(Date.now() / 1000),
            exp: Math.floor(Date.now() / 1000) + 55,
            sub: this.apiKey,
            bodyHash: crypto.createHash("sha256").update(JSON.stringify(bodyJson || "")).digest().toString("hex")
        } as any, this.privateKey, { algorithm: "RS256"});

        return token;

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Invalid signature

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