express-gateway-plugin-pep/routes/grpc_pep.js

使用nodejs实现的express-gateway网关权限插件

//使用GRPC实现同步获取PDP接口PdpExec.ExecInput数据
var PROTO_PATH = __dirname + '/../protos/pdp/PdpService.proto';
var grpc = require('grpc');
var protoLoader = require('@grpc/proto-loader');
var packageDefinition = protoLoader.loadSync(
    PROTO_PATH,
    {keepCase: true,
     longs: String,
     enums: String,
     defaults: true,
     oneofs: true
    });
var pdpservice_proto = grpc.loadPackageDefinition(packageDefinition).com_para_zta_pdp;

let grpc_result = function(key, namespace, path, access_token, Authorization, address, input){
    
    // var client = new pdpservice_proto.PdpExec(address, grpc.credentials.createInsecure());
    var client = new pdpservice_proto.PdpExec(address, grpc.credentials.createInsecure());
    return new Promise(function(resolve, reject){
        // client.Read({key:key, namespace:namespace, item:item, input:input, access_token:access_token, Authorization:Authorization}, function(err, response) {
            //添加meta信息
            var meta = new grpc.Metadata();
            meta.add('access_token', access_token);
            meta.add('Authorization', Authorization);

            // client.ExecInput({key:key, namespace:namespace, item:item, input:input, access_token:access_token, Authorization:Authorization}, function(err, response) {
            client.ExecInput({key:key, namespace:namespace, path:path, input:input}, meta, function(err, response) {
            if (err) {
                reject(err);
            }
            resolve(response);
          });
    })
}

module.exports = grpc_result;