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

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import { OptionsWithUri } from 'request';
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import {
IExecuteFunctions,
IExecuteSingleFunctions,
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IHookFunctions,
ILoadOptionsFunctions,
} from 'n8n-core';
import { IDataObject, IOAuth2Options } from 'n8n-workflow';
import { snakeCase } from 'change-case';
export async function shopifyApiRequest(
this: IHookFunctions | IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions,
method: string,
resource: string,
body: any = {},
query: IDataObject = {},
uri?: string,
option: IDataObject = {},
): Promise<any> {
const authenticationMethod = this.getNodeParameter('authentication', 0, 'oAuth2') as string;
let credentials;
let credentialType = 'shopifyOAuth2Api';
if (authenticationMethod === 'apiKey') {
credentials = await this.getCredentials('shopifyApi');
credentialType = 'shopifyApi';
} else if (authenticationMethod === 'accessToken') {
credentials = await this.getCredentials('shopifyAccessTokenApi');
credentialType = 'shopifyAccessTokenApi';
} else {
credentials = await this.getCredentials('shopifyOAuth2Api');
}
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const options: OptionsWithUri = {
method,
qs: query,
uri: uri || `https://${credentials.shopSubdomain}.myshopify.com/admin/api/2019-10${resource}`,
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body,
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json: true,
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};
const oAuth2Options: IOAuth2Options = {
tokenType: 'Bearer',
keyToIncludeInAccessTokenHeader: 'X-Shopify-Access-Token',
};
if (authenticationMethod === 'apiKey') {
Object.assign(options, {
auth: { username: credentials.apiKey, password: credentials.password },
});
}
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if (Object.keys(option).length !== 0) {
Object.assign(options, option);
}
if (Object.keys(body).length === 0) {
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delete options.body;
}
if (Object.keys(query).length === 0) {
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delete options.qs;
}
return this.helpers.requestWithAuthentication.call(this, credentialType, options, {
oauth2: oAuth2Options,
});
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}
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export async function shopifyApiRequestAllItems(
this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
propertyName: string,
method: string,
resource: string,
body: any = {},
query: IDataObject = {},
): Promise<any> {
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const returnData: IDataObject[] = [];
/*
When paginating some parameters
(e.g. product:getAll -> title ) cannot
be empty in the query string, so remove
all the empty ones before paginating.
*/
for (const field in query) {
if (query[field] === '') {
delete query[field];
}
}
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let responseData;
let uri: string | undefined;
do {
responseData = await shopifyApiRequest.call(this, method, resource, body, query, uri, {
resolveWithFullResponse: true,
});
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if (responseData.headers.link) {
uri = responseData.headers.link.split(';')[0].replace('<', '').replace('>', '');
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}
returnData.push.apply(returnData, responseData.body[propertyName]);
} while (responseData.headers.link?.includes('rel="next"'));
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return returnData;
}
export function keysToSnakeCase(elements: IDataObject[] | IDataObject): IDataObject[] {
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if (elements === undefined) {
return [];
}
if (!Array.isArray(elements)) {
elements = [elements];
}
for (const element of elements) {
for (const key of Object.keys(element)) {
if (key !== snakeCase(key)) {
element[snakeCase(key)] = element[key];
delete element[key];
}
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}
}
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return elements;
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}