n8n/packages/nodes-base/nodes/Slack/V1/GenericFunctions.ts

126 lines
3.3 KiB
TypeScript

import type { OptionsWithUri } from 'request';
import type { IExecuteFunctions, IExecuteSingleFunctions, ILoadOptionsFunctions } from 'n8n-core';
import type { IDataObject, IOAuth2Options, JsonObject } from 'n8n-workflow';
import { NodeApiError, NodeOperationError } from 'n8n-workflow';
import get from 'lodash.get';
export async function slackApiRequest(
this: IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions,
method: string,
resource: string,
body: object = {},
query: object = {},
headers: IDataObject | undefined = undefined,
option: IDataObject = {},
): Promise<any> {
const authenticationMethod = this.getNodeParameter('authentication', 0, 'accessToken') as string;
let options: OptionsWithUri = {
method,
headers: headers || {
'Content-Type': 'application/json; charset=utf-8',
},
body,
qs: query,
uri: `https://slack.com/api${resource}`,
json: true,
};
options = Object.assign({}, options, option);
if (Object.keys(body).length === 0) {
delete options.body;
}
if (Object.keys(query).length === 0) {
delete options.qs;
}
const oAuth2Options: IOAuth2Options = {
tokenType: 'Bearer',
property: 'authed_user.access_token',
};
try {
const credentialType = authenticationMethod === 'accessToken' ? 'slackApi' : 'slackOAuth2Api';
const response = await this.helpers.requestWithAuthentication.call(
this,
credentialType,
options,
{
oauth2: oAuth2Options,
},
);
if (response.ok === false) {
if (response.error === 'paid_teams_only') {
throw new NodeOperationError(
this.getNode(),
`Your current Slack plan does not include the resource '${this.getNodeParameter(
'resource',
0,
)}'`,
{
description:
'Hint: Upgrate to the Slack plan that includes the funcionality you want to use.',
},
);
}
throw new NodeOperationError(
this.getNode(),
'Slack error response: ' + JSON.stringify(response),
);
}
return response;
} catch (error) {
throw new NodeApiError(this.getNode(), error as JsonObject);
}
}
export async function slackApiRequestAllItems(
this: IExecuteFunctions | ILoadOptionsFunctions,
propertyName: string,
method: string,
endpoint: string,
body: any = {},
query: IDataObject = {},
): Promise<any> {
const returnData: IDataObject[] = [];
let responseData;
query.page = 1;
//if the endpoint uses legacy pagination use count
//https://api.slack.com/docs/pagination#classic
if (endpoint.includes('files.list')) {
query.count = 100;
} else {
query.limit = 100;
}
do {
responseData = await slackApiRequest.call(this, method, endpoint, body as IDataObject, query);
query.cursor = get(responseData, 'response_metadata.next_cursor');
query.page++;
returnData.push.apply(returnData, responseData[propertyName] as IDataObject[]);
} while (
(responseData.response_metadata?.next_cursor !== undefined &&
responseData.response_metadata.next_cursor !== '' &&
responseData.response_metadata.next_cursor !== null) ||
(responseData.paging?.pages !== undefined &&
responseData.paging.page !== undefined &&
responseData.paging.page < responseData.paging.pages)
);
return returnData;
}
export function validateJSON(json: string | undefined): any {
let result;
try {
result = JSON.parse(json!);
} catch (exception) {
result = undefined;
}
return result;
}