@formpost/node/dist/index.js

Official FormPost Node.js SDK – Server-side library for securely integrating FormPost forms and endpoints. Provides easy-to-use methods for submitting form data, verifying client submissions, and handling signatures with secret keys. Perfect for Next.js,

"use strict";
/**
 * Main FormPost SDK
 * - constructor({ secretKey, baseUrl })
 * submit(formId, data) -> server-to-server submit using the secret key
 * - verifySignature(rawBody, signatureHeader, secret) -> boolean
 * - generateSignature(payload, timestamp, secret) -> string
 * - helpers: buildHeaders(), fetch wrapper
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.FormPost = void 0;
const node_fetch_1 = require("node-fetch");
const crypto = require("crypto");
class FormPost {
    constructor(options) {
        if (!options.key)
            throw new Error('Secret key is required');
        if (!options.endpoint)
            throw new Error('Endpoint is required');
        this.key = options.key;
        this.endpoint = options.endpoint;
    }
    buildHeaders() {
        return {
            'Content-Type': 'application/json',
            'X-Api-Key': this.key
        };
    }
    async submit(payload) {
        const res = await (0, node_fetch_1.default)(this.endpoint, {
            method: 'POST',
            headers: this.buildHeaders(),
            body: JSON.stringify(payload.data)
        });
        return res.json();
    }
    generateSignature(payload, timestamp) {
        return crypto.createHmac('sha256', this.key)
            .update(`${timestamp}.${payload}`)
            .digest('hex');
    }
    verifySignature(payload, signature, timestamp) {
        const expected = this.generateSignature(payload, timestamp);
        return expected === signature;
    }
}
exports.FormPost = FormPost;
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