Question

尝试将graphql与oracle数据库连接并返回一些数据。尝试这样做时，我看到数据正在返回（基于行数），但是数据显示为空

当我在控制台中通过函数打印数据库的输出时，我看到返回的结果作为数组对象没有任何问题。

我正在尝试确定解析器功能是否与无法将输出映射到graphQL的ClientType有关

我试图解析数据并更新各种格式的typeDefs，但似乎仍然无法工作

const graphql = require("graphql");
const oracledb = require("oracledb");
const {
    GraphQLObjectType,
    GraphQLString,
    GraphQLInt,
    GraphQLSchema,
    GraphQLID,
    GraphQLList
} = graphql;

async function getAllClientsHelper() {
    let sql = "SELECT p.user_id as id, p.org_nm as orgnm FROM hr.userdetails p";
    let conn = await oracledb.getConnection();
    let result = await conn.execute(sql);
    await conn.close();
    let j = [];
    for (let r of result.rows) {
        j.push(r);
    }
    return j;
}

async function getOneClientHelper(id) {
    let sql =
        "SELECT p.user_id as id, p.org_nm as orgnm FROM hr.userdetails p where hr.user_id = :id";
    let binds = [id];
    let conn = await oracledb.getConnection();
    let result = await conn.execute(sql, binds);
    await conn.close();
    return result.rows;
}

const ClientType = new GraphQLObjectType({
    name: "Client",
    fields: () => ({
        id: {
            type: GraphQLID
        },
        orgnm: {
            type: GraphQLString
        }
    })
});

const RootQuery = new GraphQLObjectType({
    name: "RootQueryType",
    fields: {
        client: {
            type: ClientType,
            args: {
                id: {
                    type: GraphQLID
                }
            },
            resolve(parent, args) {
                // code to get the data from databse / source
                return getOneClientHelper(args.id);
            }
        },
        clients: {
            type: new GraphQLList(ClientType),
            resolve(parent, args) {
                return getAllClientsHelper();
            }
        }
    }
});

module.exports = new GraphQLSchema({
    query: RootQuery
});

当我尝试从getOneClient()上的控制台打印时，这里是输出

[1，测试机构]

我正在尝试查看以下针对选定客户端的查询输出

{
  client(id: 1){
      orgnm: "Test Organization"
}

来自Oracle的数据在GraphQL中返回为空

0 个答案: