inversify-graphql
Version:
Builds dependency-inverted GraphQL schemas with InversifyJS
184 lines • 7.78 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
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if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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__setModuleDefault(result, mod);
return result;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.InversifyObjectTypeBuilder = exports.InversifyObjectTypeBuilderBase = exports.ExtensibleSchemaSymbol = void 0;
const inv = __importStar(require("inversify"));
const gql = __importStar(require("graphql"));
const interfaces_private_1 = require("./interfaces-private");
exports.ExtensibleSchemaSymbol = Symbol();
let InversifyObjectTypeBuilderBase = class InversifyObjectTypeBuilderBase {
constructor() {
this.extensions = 'all';
}
doBuildConfig() {
if (this.building)
throw new Error(`The type ${this.constructor.name} is involved in a circlar referenciation loop.
If this is intended, please use the thunk version of 'fields' - i.e. "fields: () => ({ /* field definition */ })`);
this.building = true;
// resolve fields, and
// deep copy item (this.config() might return a constant => must not be modified)
const cfg = { ...this.config() };
if (typeof cfg.fields === 'function') {
const cpy = cfg.fields;
cfg.fields = () => ({
...cpy()
});
}
else if (cfg.fields instanceof Array) {
cfg.fields = [...cfg.fields];
}
else {
cfg.fields = {
...cfg.fields,
};
}
// resolve types
// deep copy item (this.config() might return a constant => must not be modified)
let interfaces;
if ('interfaces' in cfg) {
// typescript wont do the cast automatically :(
const cfgo = cfg;
if (typeof cfgo.interfaces === 'function') {
const cpy = cfgo.interfaces;
cfgo.interfaces = () => [...cpy()];
}
else if (cfgo.interfaces instanceof Array) {
cfgo.interfaces = [...cfgo.interfaces];
}
// map types
if (typeof cfgo.interfaces === 'function') {
const cpy = cfgo.interfaces;
interfaces = () => cpy().map(x => this.builders.buildType(x));
}
else {
interfaces = cfgo.interfaces.map(x => this.builders.buildType(x));
}
}
// load extensions
if (this.extensible) {
const extList = this.extensible.getNoCreate(cfg.name, Object.getPrototypeOf(this).constructor, this.extensions);
for (const extended of extList) {
const built = extended.buildType();
if (built) {
const instanciated = this.builders.get(built);
const extCfg = instanciated.config();
if (typeof cfg.fields === 'function') {
const cpy = cfg.fields;
cfg.fields = () => ({
...cpy(),
...extCfg.fields,
});
}
else {
cfg.fields = {
...cfg.fields,
...extCfg.fields,
};
// for (const fname of Object.keys(extCfg.fields)) {
// if (fname in cfg.fields)
// throw new Error('Cannot merge GraphQL extensions in ' + cfg.name + ' because an extension also declares a field named ' + fname);
// cfg.fields[fname] = extCfg.fields[fname];
// }
}
}
}
}
const buildField = (ifcm) => {
// build real type map
const builtMap = {};
Object.keys(ifcm)
.forEach(fieldName => {
const field = ifcm[fieldName];
if (!field)
return; // ignore undefined fields
const type = this.builders.buildType(field.type);
builtMap[fieldName] = {
...field,
type: type,
};
});
return builtMap;
};
// retreive fields
let builtFields;
if (cfg.fields instanceof Array) {
builtFields = {};
cfg.fields.forEach(b => {
let m = this.builders.get(b).map();
if (typeof m === 'function')
m = m();
const builtMap = buildField(m);
Object.keys(builtMap)
.forEach(mk => {
if (builtFields[mk])
throw new Error('Dupplicate field in partial graphql map: ' + mk);
builtFields[mk] = builtMap[mk];
});
});
}
else if (typeof cfg.fields === 'function') {
const fieldsFn = cfg.fields;
builtFields = () => buildField(fieldsFn());
}
else
builtFields = buildField(cfg.fields);
delete this.building;
return {
...cfg,
interfaces,
fields: builtFields,
};
}
};
__decorate([
inv.inject(interfaces_private_1.ITypeCache),
__metadata("design:type", interfaces_private_1.ITypeCache)
], InversifyObjectTypeBuilderBase.prototype, "builders", void 0);
__decorate([
inv.inject(exports.ExtensibleSchemaSymbol),
inv.optional(),
__metadata("design:type", Object)
], InversifyObjectTypeBuilderBase.prototype, "extensible", void 0);
InversifyObjectTypeBuilderBase = __decorate([
inv.injectable()
], InversifyObjectTypeBuilderBase);
exports.InversifyObjectTypeBuilderBase = InversifyObjectTypeBuilderBase;
class InversifyObjectTypeBuilder extends InversifyObjectTypeBuilderBase {
build() {
if (this.built)
return this.built;
const cfg = super.doBuildConfig();
// return real object type
this.built = new gql.GraphQLObjectType(cfg);
return this.built;
}
}
exports.InversifyObjectTypeBuilder = InversifyObjectTypeBuilder;
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