n8n/packages/nodes-base/nodes/Wise/GenericFunctions.ts

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import { createSign } from 'crypto';
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import type {
IDataObject,
IExecuteFunctions,
IHookFunctions,
IHttpRequestOptions,
ILoadOptionsFunctions,
JsonObject,
} from 'n8n-workflow';
import { NodeApiError } from 'n8n-workflow';
/**
* Make an authenticated API request to Wise.
*/
export async function wiseApiRequest(
this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
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method: 'GET' | 'POST' | 'PUT' | 'DELETE' | 'HEAD' | 'PATCH',
endpoint: string,
body: IDataObject = {},
qs: IDataObject = {},
option: IDataObject = {},
) {
const { apiToken, environment, privateKey } = (await this.getCredentials('wiseApi')) as {
apiToken: string;
environment: 'live' | 'test';
privateKey?: string;
};
const rootUrl =
environment === 'live'
? 'https://api.transferwise.com/'
: 'https://api.sandbox.transferwise.tech/';
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const options: IHttpRequestOptions = {
headers: {
'user-agent': 'n8n',
Authorization: `Bearer ${apiToken}`,
},
method,
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url: `${rootUrl}${endpoint}`,
qs,
body,
json: true,
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returnFullResponse: true,
ignoreHttpStatusErrors: true,
};
if (!Object.keys(body).length) {
delete options.body;
}
if (!Object.keys(qs).length) {
delete options.qs;
}
if (option.encoding) {
delete options.json;
}
if (Object.keys(option)) {
Object.assign(options, option);
}
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let response;
try {
response = await this.helpers.httpRequest(options);
} catch (error) {
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delete error.config;
throw new NodeApiError(this.getNode(), error as JsonObject);
}
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if (response.statusCode >= 200 && response.statusCode < 300) {
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return response.body;
}
// Request requires SCA approval
if (response.statusCode === 403 && response.headers['x-2fa-approval']) {
if (!privateKey) {
throw new NodeApiError(this.getNode(), {
message:
'This request requires Strong Customer Authentication (SCA). Please add a key pair to your account and n8n credentials. See https://api-docs.transferwise.com/#strong-customer-authentication-personal-token',
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headers: response.headers,
body: response.body,
});
}
// Sign the x-2fa-approval
const oneTimeToken = response.headers['x-2fa-approval'] as string;
const signerObject = createSign('RSA-SHA256').update(oneTimeToken);
try {
const signature = signerObject.sign(privateKey, 'base64');
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delete option.ignoreHttpStatusErrors;
options.headers = {
...options.headers,
'X-Signature': signature,
'x-2fa-approval': oneTimeToken,
};
} catch (error) {
throw new NodeApiError(this.getNode(), {
message: 'Error signing SCA request, check your private key',
...(error as JsonObject),
});
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}
// Retry the request with signed token
try {
response = await this.helpers.httpRequest(options);
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return response.body;
} catch (error) {
throw new NodeApiError(this.getNode(), {
message: 'SCA request failed, check your private key is valid',
});
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}
} else {
throw new NodeApiError(this.getNode(), {
...(response as JsonObject),
message: response.statusMessage,
});
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}
}
export function getTriggerName(eventName: string) {
const events: IDataObject = {
tranferStateChange: 'transfers#state-change',
transferActiveCases: 'transfers#active-cases',
balanceCredit: 'balances#credit',
};
return events[eventName];
}
export type BorderlessAccount = {
id: number;
balances: Array<{ currency: string }>;
};
export type ExchangeRateAdditionalFields = {
interval: 'day' | 'hour' | 'minute';
range: {
rangeProperties: { from: string; to: string };
};
time: string;
};
export type Profile = {
id: number;
type: 'business' | 'personal';
};
export type Recipient = {
active: boolean;
id: number;
accountHolderName: string;
country: string | null;
currency: string;
type: string;
};
export type StatementAdditionalFields = {
lineStyle: 'COMPACT' | 'FLAT';
range: {
rangeProperties: { intervalStart: string; intervalEnd: string };
};
};
export type TransferFilters = {
[key: string]: string | IDataObject;
range: {
rangeProperties: { createdDateStart: string; createdDateEnd: string };
};
sourceCurrency: string;
status: string;
targetCurrency: string;
};
export const livePublicKey = `
-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvO8vXV+JksBzZAY6GhSO
XdoTCfhXaaiZ+qAbtaDBiu2AGkGVpmEygFmWP4Li9m5+Ni85BhVvZOodM9epgW3F
bA5Q1SexvAF1PPjX4JpMstak/QhAgl1qMSqEevL8cmUeTgcMuVWCJmlge9h7B1CS
D4rtlimGZozG39rUBDg6Qt2K+P4wBfLblL0k4C4YUdLnpGYEDIth+i8XsRpFlogx
CAFyH9+knYsDbR43UJ9shtc42Ybd40Afihj8KnYKXzchyQ42aC8aZ/h5hyZ28yVy
Oj3Vos0VdBIs/gAyJ/4yyQFCXYte64I7ssrlbGRaco4nKF3HmaNhxwyKyJafz19e
HwIDAQAB
-----END PUBLIC KEY-----`;
export const testPublicKey = `
-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwpb91cEYuyJNQepZAVfP
ZIlPZfNUefH+n6w9SW3fykqKu938cR7WadQv87oF2VuT+fDt7kqeRziTmPSUhqPU
ys/V2Q1rlfJuXbE+Gga37t7zwd0egQ+KyOEHQOpcTwKmtZ81ieGHynAQzsn1We3j
wt760MsCPJ7GMT141ByQM+yW1Bx+4SG3IGjXWyqOWrcXsxAvIXkpUD/jK/L958Cg
nZEgz0BSEh0QxYLITnW1lLokSx/dTianWPFEhMC9BgijempgNXHNfcVirg1lPSyg
z7KqoKUN0oHqWLr2U1A+7kqrl6O2nx3CKs1bj1hToT1+p4kcMoHXA7kA+VBLUpEs
VwIDAQAB
-----END PUBLIC KEY-----`;