@cerbos/grpc
Version:
Client library for interacting with the Cerbos policy decision point service over gRPC from server-side Node.js applications
73 lines • 3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Transport = void 0;
const grpc_js_1 = require("@grpc/grpc-js");
const core_1 = require("@cerbos/core");
const svc_1 = require("./protobuf/cerbos/svc/v1/svc");
const health_1 = require("./protobuf/grpc/health/v1/health");
const services = {
admin: svc_1.CerbosAdminServiceService,
cerbos: svc_1.CerbosServiceService,
health: health_1.HealthService,
};
class Transport {
client;
constructor(client) {
this.client = client;
}
async unary(service, method, request, headers, abortHandler) {
const { path, requestSerialize, responseDeserialize } = services[service][method]; // https://github.com/microsoft/TypeScript/issues/30581
return await new Promise((resolve, reject) => {
abortHandler.throwIfAborted();
const call = this.client.makeUnaryRequest(path, requestSerialize, responseDeserialize, request, metadata(headers), (error, response) => {
if (error) {
reject(new core_1.NotOK((error.code || core_1.Status.UNKNOWN), error.details));
}
else if (!response) {
reject(new core_1.NotOK(core_1.Status.UNKNOWN, "No response received"));
}
else {
resolve(response);
}
});
abortHandler.onAbort((error) => {
reject(error);
call.cancel();
});
});
}
async *serverStream(service, method, request, headers, abortHandler) {
const { path, requestSerialize, responseDeserialize } = services[service][method]; // https://github.com/microsoft/TypeScript/issues/30581
abortHandler.throwIfAborted();
try {
const stream = this.client.makeServerStreamRequest(path, requestSerialize, responseDeserialize, request, metadata(headers));
abortHandler.onAbort(() => {
stream.cancel();
});
for await (const response of stream) {
yield response;
}
}
catch (error) {
abortHandler.throwIfAborted();
if ((0, core_1._isObject)(error)) {
const { code, details } = error;
if (typeof code === "number" && typeof details === "string") {
throw new core_1.NotOK(code in core_1.Status ? code : core_1.Status.UNKNOWN, details);
}
}
throw new core_1.NotOK(core_1.Status.UNKNOWN, error instanceof Error
? `Error reading stream: ${error.message}`
: "Error reading stream", { cause: error });
}
}
}
exports.Transport = Transport;
function metadata(headers) {
const metadata = new grpc_js_1.Metadata();
for (const [name, value] of headers) {
metadata.set(name, value);
}
return metadata;
}
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