WordPress: Get Search Results

 
export default async function main(args) {
// Input variables from Voiceflow
    const { wpDomain, wpApikey, wpUsername, wpSearchString } = args.inputVars;

    // Custom function to encode a string to Base64
    function base64Encode(str) {
        const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
        let encoded = '', i = 0;

        while (i < str.length) {
            const a = str.charCodeAt(i++);
            const b = i < str.length ? str.charCodeAt(i++) : 0;
            const c = i < str.length ? str.charCodeAt(i++) : 0;

            const b1 = (a >> 2) & 0x3F;
            const b2 = ((a & 0x03) << 4) | ((b >> 4) & 0x0F);
            const b3 = ((b & 0x0F) << 2) | ((c >> 6) & 0x03);
            const b4 = c & 0x3F;

            if (!i) {
                encoded += chars.charAt(b1) + chars.charAt(b2) + '==';
            } else if (i == str.length + 1) {
                encoded += chars.charAt(b1) + chars.charAt(b2) + chars.charAt(b3) + '=';
            } else {
                encoded += chars.charAt(b1) + chars.charAt(b2) + chars.charAt(b3) + chars.charAt(b4);
            }
        }

        return encoded;
    }

    // Encode credentials using the custom function
    const credentials = `${wpUsername}:${wpApikey}`;
    const base64Credentials = base64Encode(credentials);

    // Define the API URL with parameters
    const baseUrl = `https://${wpDomain}/wp-json/wp/v2/search`;
    const queryParams = `?type=post&subtype=post&search=${encodeURIComponent(wpSearchString)}`;
    const apiUrl = baseUrl + queryParams;
  
  // Configuration for fetch request
    const config = {
        method: 'GET',
        headers: {
            "Authorization": `Basic ${base64Credentials}`,
            "Content-Type": "application/json"
        }
    };

    try {
        const response = await fetch(apiUrl, config);

        if (!response.ok) {
            throw new Error(`HTTP error! status: ${response.status}`);
        }

        const posts = await response.json;

        if (!posts || posts.length === 0) {
            throw new Error("No posts found");
        }

        // Format the fetched posts into a bullet list with titles and IDs
        const titles = posts.map(post => `• ${post.title} (${post.id})`).join('\n');

        return {
            outputVars: {
                wpPostTitles: titles
            },
            next: { path: 'success' },
            trace: [{ type: "text", payload: { message: `Posts successfully fetched. Here are the titles:\n${titles}` }}]
        };

    } catch (error) {
        return {
            next: { path: 'error' },
            trace: [{ type: "debug", payload: { message: "Error:" + error.message } }]
        };
    }
}