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import {adapter} from '@feasibleone/blong/types';
import ky, {type Options as KyOptions} from 'ky';
export interface IConfig {
tls?: {
key?: string;
cert?: string;
ca?: string | string[];
crl?: string;
};
url?: string;
/** Alternative to `url`: construct the base URL from these parts.
* The `port` value may be a Promise (e.g. from a manifest property)
* that resolves to the effective port number. */
port?: number | Promise<number>;
host?: string;
protocol?: string;
}
const errorMap: IErrorMap = {
'http.generic': 'HTTP Error',
};
let _errors: Errors<typeof errorMap>;
export default adapter<IConfig>(({utError, manifest}) => {
_errors ||= utError.register(errorMap);
let kyInstance: typeof ky = ky;
return {
activation: {
default: {
type: 'http',
},
},
async init(...configs: object[]) {
await super.init(...configs);
// If port/host/protocol are provided instead of url, and the port
// value is already a plain number (e.g. from CLI --manifest.gatewayPort=8080),
// construct the URL straight away. Promise values (dynamic manifest
// ports) are resolved lazily on first exec() call.
if (!this.config.url && this.config.host && this.config.port != null) {
const portCandidate = this.config.port;
if (typeof portCandidate === 'number' || typeof portCandidate === 'string') {
const protocol = this.config.protocol || 'http';
this.config.url = `${protocol}://${this.config.host}:${portCandidate}`;
}
}
if (this.config.tls) {
// Dynamic imports — only run on the server; @vite-ignore prevents
// Vite from trying to bundle these Node.js-only modules for the browser.
const [{Agent}, {readFileSync}] = await Promise.all([
import(/* @vite-ignore */ 'undici') as Promise<typeof import('undici')>,
import(/* @vite-ignore */ 'node:fs') as Promise<typeof import('node:fs')>,
]);
const {tls} = this.config;
const agent = new Agent({
connect: {
minVersion: 'TLSv1.3',
...(tls.key && {key: readFileSync(tls.key)}),
...(tls.cert && {cert: readFileSync(tls.cert)}),
...(tls.ca && {
ca: Array.isArray(tls.ca)
? tls.ca.map(f => readFileSync(f))
: readFileSync(tls.ca),
}),
...(tls.crl && {crl: readFileSync(tls.crl)}),
},
});
kyInstance = ky.create({
fetch: (url, options) =>
fetch(url as string, {
...(options as RequestInit),
// @ts-expect-error: undici dispatcher is not in the standard RequestInit type
dispatcher: agent,
}),
});
}
},
start() {
super.connect();
return super.start();
},
async exec(
this: Adapter<IConfig>,
{
path,
query: searchParams,
url,
responseType,
method,
headers,
body,
form,
json,
}: {
path: string;
query: string | Record<string, string>;
url?: URL;
responseType: 'json' | 'text' | 'buffer';
method: string;
headers: Record<string, string>;
body: BodyInit;
form: Record<string, string>;
json: unknown;
},
$meta: IMeta,
) {
try {
// Lazily resolve the base URL when not yet available.
// Resolution priority:
// 1. Manifest gatewayPort (set by server-side Gateway after start)
// 2. Config port/host/protocol (from realm factory)
// 3. Config url (hardcoded fallback like 'http://localhost:8080')
if (!url) {
let baseUrl: string | undefined;
if (this.config.host) {
// `await` handles plain values, promises and undefined alike
const manifestPort = manifest ? await manifest.gatewayPort : undefined;
const configPort =
this.config.port != null ? await this.config.port : undefined;
const resolvedPort = manifestPort ?? configPort;
if (resolvedPort != null) {
const protocol = this.config.protocol || 'http';
baseUrl = `${protocol}://${this.config.host}:${resolvedPort}`;
this.config.url = baseUrl;
}
}
url = new URL(path, baseUrl || (this.config.url as string) || '');
}
this.log?.debug?.({
req: {
method: (method || 'POST').toUpperCase(),
url,
headers,
body,
json,
},
});
const kyOptions: KyOptions = {
method: method || 'POST',
headers,
throwHttpErrors: false,
redirect: 'manual',
...(json != null ? {json} : {}),
...(form != null ? {body: new URLSearchParams(form)} : {}),
...(body != null && json == null && form == null ? {body} : {}),
...(searchParams != null
? {searchParams: searchParams as Record<string, string>}
: {}),
};
const res = await kyInstance(url.toString(), kyOptions);
const resolvedBody =
responseType === 'buffer'
? await res.arrayBuffer()
: responseType === 'text'
? await res.text()
: await res.json().catch(() => null);
const result = {
statusCode: res.status,
statusMessage: res.statusText,
headers: Object.fromEntries(res.headers.entries()),
body: resolvedBody,
};
this.log?.debug?.({
req: {
url,
method: (method || 'POST').toUpperCase(),
},
res: result,
});
return result;
} catch (error) {
throw this.error(_errors['http.generic'](error), $meta);
}
},
};
});
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