hono-simple-di
Version:
A small, type-safe DI library optimized for hono.js.
80 lines (77 loc) • 2.26 kB
JavaScript
;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
// src/index.ts
var src_exports = {};
__export(src_exports, {
Dependency: () => Dependency
});
module.exports = __toCommonJS(src_exports);
// src/dependency.ts
var Dependency = class {
constructor(serviceInitializer, opts) {
this.serviceInitializer = serviceInitializer;
this.opts = opts;
}
serviceInjected;
serviceCached;
// used as a basis for caching when evaluating the request scope
lastRequest;
/**
* Injects a service instance directly. Useful for overriding the default service.
*/
injection(service) {
this.serviceInjected = service;
return this;
}
/**
* Clear injected service.
*/
clearInjected() {
this.serviceInjected = void 0;
return this;
}
/**
* Resolve service.
*/
async resolve(c) {
if (this.serviceInjected) {
return this.serviceInjected;
}
if (this.opts?.scope === "request" && this.lastRequest !== c.req.raw) {
this.serviceCached = void 0;
this.lastRequest = c.req.raw;
}
const service = this.serviceCached ??= await this.serviceInitializer(c);
return service;
}
/**
* Creates a middleware that injects the service into the context.
*/
middleware(contextKey) {
return async (c, next) => {
const service = await this.resolve(c);
c.set(contextKey, service);
await next();
};
}
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
Dependency
});