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import type { Nullable } from '../../types';
import { CONFIG } from '../config';
/**
* Retrieve the API url from settings.
*
* @returns {string} The API url.
*/
export const getGraphQLUrl = (): string => {
if (!CONFIG.api.url) throw new Error('You forgot to define the API url.');
return CONFIG.api.url;
};
export type GraphQLData<T> = Record<string, Nullable<T>>;
type GraphQLResponse<T extends GraphQLData<unknown>> = {
data: T;
errors?: { message: string }[];
};
export type FetchGraphQLConfig = {
query: string;
url: string;
variables?: Record<string, unknown>;
};
/**
* Retrieve GraphQL data using fetch.
*
* @template T - The expected data type.
* @param {FetchGraphQLConfig} config - A configuration object.
* @returns {Promise<T>} The data.
*/
export const fetchGraphQL = async <
T extends GraphQLData<unknown> = GraphQLData<unknown>,
>({
query,
url,
variables,
}: FetchGraphQLConfig): Promise<T> => {
const response = await fetch(url, {
method: 'POST',
headers: {
'content-type': 'application/json;charset=UTF-8',
},
body: JSON.stringify({
query,
variables,
}),
});
const { data, errors }: GraphQLResponse<T> = await response.json();
if (!response.ok) {
const error = new Error(
errors?.map((e) => e.message).join('\n') ?? 'Network response was not OK'
);
return Promise.reject(error);
}
return data;
};
|
