@tokens-studio/sdk/dist/api/graphql.js

The official SDK for Tokens Studio

import { ApolloClient, from, HttpLink, split, } from '@apollo/client/core/index.js';
import { GraphQLWsLink } from '@apollo/client/link/subscriptions/index.js';
import { createClient } from 'graphql-ws';
import { getMainDefinition } from '@apollo/client/utilities/index.js';
import { removeTypenameFromVariables } from '@apollo/client/link/remove-typename/index.js';
import { setContext } from '@apollo/client/link/context/index.js';
import { VoidCache } from './cache.js';
/**
 * Creates an instance of the SDK Client
 *
 * The webSocketImpl parameter is used to inject a custom WebSocket implementation. This is useful for testing purposes, and handling isomorphic environments.
 * @returns
 */
export function create({ auth, host = 'graphql.prod.tokens.studio', secure = true, fetch, cookies, webSocketImpl, }) {
    const authLink = setContext((_, { headers }) => {
        // return the headers to the context so httpLink can read them
        /* v8 ignore next */
        const cookieHeader = cookies
            ?.map((cookie) => `${cookie.name}=${cookie.value}`)
            .join('; ');
        const requestHeaders = {
            ...headers,
            // dont need to cover auth fallback or cookies
            /* v8 ignore next 2 */
            ...(auth ? { authorization: auth } : {}),
            ...(cookieHeader ? { Cookie: cookieHeader } : {}),
        };
        return {
            headers: requestHeaders,
        };
    });
    const removeTypenameLink = removeTypenameFromVariables();
    const httpLink = new HttpLink({
        // in testing, we always use localhost http and never https, so we dont cover this branch
        /* v8 ignore next */
        uri: `http${secure ? 's' : ''}://${host}/graphql`,
        credentials: 'include',
        fetch,
    });
    const wsLink = new GraphQLWsLink(createClient({
        webSocketImpl,
        /* v8 ignore next */
        url: `ws${secure ? 's' : ''}://${host}/subscriptions`,
        connectionParams: {
            authToken: auth,
        },
    }));
    // The split function takes three parameters:
    //
    // * A function that's called for each operation to execute
    // * The Link to use for an operation if the function returns a "truthy" value
    // * The Link to use for an operation if the function returns a "falsy" value
    const splitLink = split(({ query }) => {
        const definition = getMainDefinition(query);
        return (definition.kind === 'OperationDefinition' &&
            definition.operation === 'subscription');
    }, wsLink, httpLink);
    return new ApolloClient({
        link: from([removeTypenameLink, authLink, splitLink]),
        cache: new VoidCache(),
        defaultOptions: {
            watchQuery: {
                fetchPolicy: 'no-cache',
                errorPolicy: 'ignore',
            },
            query: {
                fetchPolicy: 'no-cache',
                errorPolicy: 'all',
            },
        },
    });
}
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