@softkit/i18n
Version:
This library is a simple wrapper based on [nestjs-i18n](https://nestjs-i18n.com/)
111 lines • 3.75 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.I18nMiddleware = void 0;
const tslib_1 = require("tslib");
const common_1 = require("@nestjs/common");
const core_1 = require("@nestjs/core");
const i18n_constants_1 = require("../i18n.constants");
const i18n_service_1 = require("../services/i18n.service");
const i18n_error_1 = require("../i18n.error");
const i18n_context_1 = require("../i18n.context");
const utils_1 = require("../utils");
const type_guards_1 = require("../utils/type-guards");
const ExecutionContextMethodNotImplemented = new i18n_error_1.I18nError("Method not implemented. @softkit/i18n creates a fake Http context since it's using middleware to resolve your language. Nestjs middlewares don't have access to the ExecutionContext.");
let I18nMiddleware = class I18nMiddleware {
constructor(i18nOptions, i18nResolvers, i18nService, moduleRef) {
this.i18nOptions = i18nOptions;
this.i18nResolvers = i18nResolvers;
this.i18nService = i18nService;
this.moduleRef = moduleRef;
}
async use(req, res, next) {
let language = null;
// Skip middleware if language is already resolved
if (req.i18nLang) {
return next();
}
req.i18nService = this.i18nService;
for (const r of this.i18nResolvers) {
const resolver = await this.getResolver(r);
language = await resolver.resolve(new MiddlewareHttpContext(req, res, next));
if (language !== undefined) {
break;
}
}
req.i18nLang = language || this.i18nOptions.fallbackLanguage;
// Pass down language to handlebars
if (req.app) {
req.app.locals.i18nLang = req.i18nLang;
}
req.i18nContext = new i18n_context_1.I18nContext(req.i18nLang, this.i18nService);
if (this.i18nOptions.skipAsyncHook) {
next();
}
else {
i18n_context_1.I18nContext.create(req.i18nContext, next);
}
}
async getResolver(r) {
if ((0, utils_1.shouldResolve)(r)) {
if ((0, type_guards_1.isResolverWithOptions)(r)) {
const resolver = r;
return this.moduleRef.get(resolver.use);
}
else {
return this.moduleRef.get(r);
}
}
else {
return r;
}
}
};
exports.I18nMiddleware = I18nMiddleware;
exports.I18nMiddleware = I18nMiddleware = tslib_1.__decorate([
(0, common_1.Injectable)(),
tslib_1.__param(0, (0, common_1.Inject)(i18n_constants_1.I18N_OPTIONS)),
tslib_1.__param(1, (0, common_1.Inject)(i18n_constants_1.I18N_RESOLVERS)),
tslib_1.__metadata("design:paramtypes", [Object, Array, i18n_service_1.I18nService,
core_1.ModuleRef])
], I18nMiddleware);
class MiddlewareHttpContext {
constructor(req, res, next) {
this.req = req;
this.res = res;
this.next = next;
}
getClass() {
throw ExecutionContextMethodNotImplemented;
}
getHandler() {
throw ExecutionContextMethodNotImplemented;
}
getArgs() {
throw ExecutionContextMethodNotImplemented;
}
getArgByIndex() {
throw ExecutionContextMethodNotImplemented;
}
switchToRpc() {
throw ExecutionContextMethodNotImplemented;
}
switchToHttp() {
return this;
}
switchToWs() {
throw ExecutionContextMethodNotImplemented;
}
getType() {
return 'http';
}
getRequest() {
return this.req;
}
getResponse() {
return this.res;
}
getNext() {
return this.next;
}
}
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