@jsonjoy.com/reactive-rpc
Version:
Reactive-RPC is a library for building reactive APIs over WebSocket, HTTP, and other RPCs.
72 lines • 2.93 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.TypedApiCaller = void 0;
const rpc_error_1 = require("rpc-error");
const typed_1 = require("./error/typed");
const RpcCaller_1 = require("./RpcCaller");
const classes_1 = require("@jsonjoy.com/json-type/lib/type/classes");
const StaticRpcMethod_1 = require("../methods/StaticRpcMethod");
const StreamingRpcMethod_1 = require("../methods/StreamingRpcMethod");
class TypedApiCaller extends RpcCaller_1.RpcCaller {
constructor({ system, ...rest }) {
super({
...rest,
getMethod: (name) => this.get(name),
});
this.methods = new Map();
this.req = null;
this.res = null;
this.system = system;
}
implement(id, definition_) {
const definition = definition_;
if (this.methods.has(id))
throw new Error(`Method [id = ${id}] is already implemented.`);
const alias = this.system.resolve(id);
const type = alias.type;
if (!(type instanceof classes_1.FunctionType || type instanceof classes_1.FunctionStreamingType))
throw new Error(`Type [alias = ${alias.id}] is not a function.`);
const validator = type.validator('boolean');
const customValidator = definition.validate;
const validate = customValidator
? (req) => {
const error = validator(req);
if (error)
throw typed_1.TypedRpcError.valueFromCode(rpc_error_1.RpcErrorCodes.BAD_REQUEST);
customValidator(req);
}
: (req) => {
const error = validator(req);
if (error)
throw typed_1.TypedRpcError.valueFromCode(rpc_error_1.RpcErrorCodes.BAD_REQUEST);
};
const isStaticMethodAlias = alias.type instanceof classes_1.FunctionType;
const isStreamingMethodAlias = alias.type instanceof classes_1.FunctionStreamingType;
const method = isStaticMethodAlias
? new StaticRpcMethod_1.StaticRpcMethod({
...definition,
req: type.req,
res: type.res,
validate,
})
: isStreamingMethodAlias
? new StreamingRpcMethod_1.StreamingRpcMethod({
...definition,
req: type.req,
res: type.res,
validate,
})
: null;
if (!method)
throw new Error(`Type [alias = ${alias.id}] is not a function.`);
this.methods.set(id, method);
}
get(id) {
const method = this.methods.get(id);
if (!method)
throw typed_1.TypedRpcError.valueFromCode(rpc_error_1.RpcErrorCodes.METHOD_UNK);
return method;
}
}
exports.TypedApiCaller = TypedApiCaller;
//# sourceMappingURL=TypedApiCaller.js.map