n8n/packages/nodes-base/nodes/Google/BigQuery/GenericFunctions.ts

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import {
OptionsWithUri,
} from 'request';
import {
IExecuteFunctions,
IExecuteSingleFunctions,
ILoadOptionsFunctions,
} from 'n8n-core';
import {
IDataObject,
} from 'n8n-workflow';
export async function googleApiRequest(this: IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions, method: string, resource: string, body: any = {}, qs: IDataObject = {}, uri?: string, headers: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
const options: OptionsWithUri = {
headers: {
'Content-Type': 'application/json',
},
method,
body,
qs,
uri: uri || `https://bigquery.googleapis.com/bigquery${resource}`,
json: true,
};
try {
if (Object.keys(headers).length !== 0) {
options.headers = Object.assign({}, options.headers, headers);
}
if (Object.keys(body).length === 0) {
delete options.body;
}
//@ts-ignore
return await this.helpers.requestOAuth2.call(this, 'googleBigQueryOAuth2Api', options);
} catch (error) {
if (error.response && error.response.body && error.response.body.error) {
let errors = error.response.body.error.errors;
errors = errors.map((e: IDataObject) => e.message);
// Try to return the error prettier
throw new Error(
`Google BigQuery error response [${error.statusCode}]: ${errors.join('|')}`,
);
}
throw error;
}
}
export async function googleApiRequestAllItems(this: IExecuteFunctions | ILoadOptionsFunctions, propertyName: string, method: string, endpoint: string, body: any = {}, query: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
const returnData: IDataObject[] = [];
let responseData;
query.maxResults = 100;
do {
responseData = await googleApiRequest.call(this, method, endpoint, body, query);
query.pageToken = responseData['pageToken'];
returnData.push.apply(returnData, responseData[propertyName]);
} while (
responseData['pageToken'] !== undefined &&
responseData['pageToken'] !== ''
);
return returnData;
}
export function simplify(rows: IDataObject[], fields: string[]) {
const results = [];
for (const row of rows) {
const record: IDataObject = {};
for (const [index, field] of fields.entries()) {
record[field] = (row.f as IDataObject[])[index].v;
}
results.push(record);
}
return results;
}