@loopback/boot
Version:
A collection of Booters for LoopBack 4 Applications
92 lines • 3.99 kB
JavaScript
;
// Copyright IBM Corp. and LoopBack contributors 2019. All Rights Reserved.
// Node module: @loopback/boot
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
Object.defineProperty(exports, "__esModule", { value: true });
exports.RestDefaults = exports.ModelApiBooter = void 0;
const tslib_1 = require("tslib");
const core_1 = require("@loopback/core");
const model_api_builder_1 = require("@loopback/model-api-builder");
const debug_1 = tslib_1.__importDefault(require("debug"));
const path = tslib_1.__importStar(require("path"));
const keys_1 = require("../keys");
const types_1 = require("../types");
const base_artifact_booter_1 = require("./base-artifact.booter");
const debug = (0, debug_1.default)('loopback:boot:model-api');
let ModelApiBooter = class ModelApiBooter extends base_artifact_booter_1.BaseArtifactBooter {
constructor(app, projectRoot, getModelApiBuilders, booterConfig = {}) {
// TODO assert that `app` has RepositoryMixin members
super(projectRoot,
// Set booter options if passed in via bootConfig
Object.assign({}, exports.RestDefaults, booterConfig));
this.app = app;
this.getModelApiBuilders = getModelApiBuilders;
this.booterConfig = booterConfig;
}
/**
* Load the the model config files
*/
async load() {
// Important: don't call `super.load()` here, it would try to load
// classes via `loadClassesFromFiles` - that won't work for JSON files
await Promise.all(this.discovered.map(async (f) => {
try {
// It's important to await before returning,
// otherwise the catch block won't receive errors
await this.setupModel(f);
}
catch (err) {
const shortPath = path.relative(this.projectRoot, f);
err.message += ` (while loading ${shortPath})`;
throw err;
}
}));
}
/**
* Set up the loaded model classes
*/
async setupModel(configFile) {
const cfg = require(configFile);
debug('Loaded model config from %s', path.relative(this.projectRoot, configFile), cfg);
const modelClass = cfg.model;
if (typeof modelClass !== 'function') {
throw new Error(`Invalid "model" field. Expected a Model class, found ${modelClass}`);
}
const builder = await this.getApiBuilderForPattern(cfg.pattern);
await builder.build(this.app, modelClass, cfg);
}
/**
* Retrieve the API builder that matches the pattern provided
* @param pattern - name of pattern for an API builder
*/
async getApiBuilderForPattern(pattern) {
const allBuilders = await this.getModelApiBuilders();
const builder = allBuilders.find(b => b.pattern === pattern);
if (!builder) {
const availableBuilders = allBuilders.map(b => b.pattern).join(', ');
throw new Error(`Unsupported API pattern "${pattern}". ` +
`Available patterns: ${availableBuilders || '<none>'}`);
}
return builder;
}
};
exports.ModelApiBooter = ModelApiBooter;
exports.ModelApiBooter = ModelApiBooter = tslib_1.__decorate([
(0, types_1.booter)('modelApi'),
(0, core_1.extensionPoint)(model_api_builder_1.MODEL_API_BUILDER_PLUGINS),
tslib_1.__param(0, (0, core_1.inject)(core_1.CoreBindings.APPLICATION_INSTANCE)),
tslib_1.__param(1, (0, core_1.inject)(keys_1.BootBindings.PROJECT_ROOT)),
tslib_1.__param(2, (0, core_1.extensions)()),
tslib_1.__param(3, (0, core_1.config)()),
tslib_1.__metadata("design:paramtypes", [Object, String, Function, Object])
], ModelApiBooter);
/**
* Default ArtifactOptions for ControllerBooter.
*/
exports.RestDefaults = {
dirs: ['model-endpoints'],
extensions: ['-config.js'],
nested: true,
};
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