Method generateSignature

src/node-binance-api.ts:786–822

(query: string, encode = true)

    }

    generateSignature(query: string, encode = true) {
        const secret = this.APISECRET || this.PRIVATEKEY;
        let signature = '';
        if (secret.includes('PRIVATE KEY')) {
            // if less than the below length, then it can't be RSA key
            let keyObject: crypto.KeyObject;
            try {
                const privateKeyObj: crypto.PrivateKeyInput = { key: secret };

                if (this.PRIVATEKEYPASSWORD) {
                    privateKeyObj.passphrase = this.PRIVATEKEYPASSWORD;
                }

                keyObject = crypto.createPrivateKey(privateKeyObj);

            } catch (e) {
                throw new Error(
                    'Invalid private key. Please provide a valid RSA or ED25519 private key. ' + e.toString()
                );
            }

            if (secret.length > 120) {
                // RSA key
                signature = crypto
                    .sign('RSA-SHA256', Buffer.from(query), keyObject)
                    .toString('base64');
                if (encode) signature = encodeURIComponent(signature);
                return signature;
            } else {
                // Ed25519 key
                signature = crypto.sign(null, Buffer.from(query), keyObject).toString('base64');
            }
        } else {
            signature = crypto.createHmac('sha256', this.Options.APISECRET).update(query).digest('hex'); // set the HMAC hash header
        }
        return signature;
    }

    // --- ENDPOINTS --- //