modern-teal•15mo ago

useOne doesn't return expected value

I have this: interface IProduct { id: number; name: string; material: string; } // const int_vehicleId = params?.id ? parseInt(params.id, 10) : undefined; const { data:vehicle_data, isLoading, isError } = useOne<IProduct, HttpError>({ resource: "vehicles", id: "1", }); And as you can see I should get back the name and material. The vehicle has these properties in its model. But I noticed the request that is going out is limited: "query ($id: ID!) { vehicle (id: $id) { id } }" so it asks back only the id. Why is this?

7 Replies

kapa.ai•15mo ago

Hi @Valugar. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- It seems like the issue you're encountering is related to the GraphQL query being sent, which only requests the id field of the vehicle resource. This is why you're not getting the name and material properties in the response. The useOne hook in refine is designed to fetch a single resource by its id. However, the fields requested in the GraphQL query are determined by the dataProvider implementation. If the dataProvider is not configured to request the additional fields (name and material), you will only get the id field in the response. To resolve this issue, you need to ensure that your dataProvider is configured to request all the necessary fields. This typically involves customizing the GraphQL query in your dataProvider. Here is an example of how you might customize the GraphQL query in your dataProvider to include the name and material fields:

import { GraphQLClient } from "graphql-request";
import { DataProvider } from "@refinedev/core";

const gqlClient = new GraphQLClient("<https://your-graphql-endpoint.com">);

const dataProvider: DataProvider = {
    getOne: async ({ resource, id }) => {
        const query = `
            query ($id: ID!) {
                vehicle(id: $id) {
                    id
                    name
                    material
                }
            }
        `;
        const variables = { id };
        const response = await gqlClient.request(query, variables);
        return { data: response.vehicle };
    },
    // other methods...
};

export default dataProvider;

import { GraphQLClient } from "graphql-request";
import { DataProvider } from "@refinedev/core";

const gqlClient = new GraphQLClient("<https://your-graphql-endpoint.com">);

const dataProvider: DataProvider = {
    getOne: async ({ resource, id }) => {
        const query = `
            query ($id: ID!) {
                vehicle(id: $id) {
                    id
                    name
                    material
                }
            }
        `;
        const variables = { id };
        const response = await gqlClient.request(query, variables);
        return { data: response.vehicle };
    },
    // other methods...
};

export default dataProvider;

Make sure to replace "<https://your-graphql-endpoint.com"> with your actual GraphQL endpoint. By customizing the query in this way, you ensure that the name and material fields are included in the response, and the useOne hook will return the expected values. For more information on how to use the useOne hook, you can refer to the official documentation (https://refine.dev/docs/data/hooks/use-one/#usage). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•15mo ago

<@240371095444652032> kapa.ai is still learning and improving, please let us know how it did by reacting below

modern-tealOP•15mo ago

@kapa.ai this is my data provider: export const client = new GraphQLClient(API_URL, { fetch: async (url: string, options: any) => { try { const response = await axiosInstance.request({ data: options.body, url, ...options, }); console.log(response) if (response.status < 200 response.status > 299) { throw new Error(HTTP error! Status: ${response.status}); } if (response.data.errors) { throw response.data.errors; }
return { ...response, data: response.data }; } catch (error: any) { console.log(error) const messages = error?.map((error: any) => error?.message)?.join(""); const code = error?.[0]?.extensions?.code; return Promise.reject({ message: messages JSON.stringify(error), statusCode: code || 500, }); } }, }); export const wsClient = createClient({ url: WS_URL, connectionParams: () => ({ headers: { Authorization: Bearer ${localStorage.getItem("access_token")}, }, }), }); export const dataProvider = graphqlDataProvider(client); export const liveProvider = graphqlLiveProvider(wsClient);

kapa.ai•15mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- To ensure that your useOne hook returns the expected fields (name and material), you need to customize the GraphQL query in your dataProvider. Currently, it seems that the default query only requests the id field. Here's how you can customize your dataProvider to include the necessary fields in the query: 1. Modify the dataProvider to include the required fields in the query:

import { GraphQLClient } from "graphql-request";
import { DataProvider } from "@refinedev/core";
import { client } from "./path-to-your-client"; // Adjust the import path as necessary

const dataProvider: DataProvider = {
    getOne: async ({ resource, id }) => {
        const query = `
            query ($id: ID!) {
                vehicle(id: $id) {
                    id
                    name
                    material
                }
            }
        `;
        const variables = { id };
        const response = await client.request(query, variables);
        return { data: response.vehicle };
    },
    // other methods...
};

export default dataProvider;

import { GraphQLClient } from "graphql-request";
import { DataProvider } from "@refinedev/core";
import { client } from "./path-to-your-client"; // Adjust the import path as necessary

const dataProvider: DataProvider = {
    getOne: async ({ resource, id }) => {
        const query = `
            query ($id: ID!) {
                vehicle(id: $id) {
                    id
                    name
                    material
                }
            }
        `;
        const variables = { id };
        const response = await client.request(query, variables);
        return { data: response.vehicle };
    },
    // other methods...
};

export default dataProvider;

2. Ensure that your useOne hook is using this customized dataProvider:

import { useOne } from "@refinedev/core";
import { dataProvider } from "./path-to-your-data-provider"; // Adjust the import path as necessary

interface IProduct {
    id: number;
    name: string;
    material: string;
}

const { data: vehicle_data, isLoading, isError } = useOne<IProduct, HttpError>({
    resource: "vehicles",
    id: "1",
    dataProvider,
});

import { useOne } from "@refinedev/core";
import { dataProvider } from "./path-to-your-data-provider"; // Adjust the import path as necessary

interface IProduct {
    id: number;
    name: string;
    material: string;
}

const { data: vehicle_data, isLoading, isError } = useOne<IProduct, HttpError>({
    resource: "vehicles",
    id: "1",
    dataProvider,
});

By customizing the query in this way, you ensure that the name and material fields are included in the response, and the useOne hook will return the expected values. For more information on how to use the useOne hook, you can refer to the official documentation (https://refine.dev/docs/data/hooks/use-one/#usage). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

modern-tealOP•15mo ago

@kapa.ai But it doesn't make any sense to it this way! Will Ithen have to have a different dataprovider for each useOne I need to use? Some have other properties. It just plain stupid and not the right solution

kapa.ai•15mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- I understand your concern. You don't need to create a different dataProvider for each useOne call. Instead, you can leverage the meta property to dynamically customize the fields requested in the GraphQL query. This way, you can specify the fields you need for each useOne call without modifying the dataProvider itself. Here's how you can achieve this: 1. Modify your dataProvider to accept the meta property:

import { GraphQLClient } from "graphql-request";
import { DataProvider } from "@refinedev/core";
import { client } from "./path-to-your-client"; // Adjust the import path as necessary

const dataProvider: DataProvider = {
    getOne: async ({ resource, id, meta }) => {
        const fields = meta?.fields || "id"; // Default to "id" if no fields are specified
        const query = `
            query ($id: ID!) {
                ${resource}(id: $id) {
                    ${fields}
                }
            }
        `;
        const variables = { id };
        const response = await client.request(query, variables);
        return { data: response[resource] };
    },
    // other methods...
};

export default dataProvider;

import { GraphQLClient } from "graphql-request";
import { DataProvider } from "@refinedev/core";
import { client } from "./path-to-your-client"; // Adjust the import path as necessary

const dataProvider: DataProvider = {
    getOne: async ({ resource, id, meta }) => {
        const fields = meta?.fields || "id"; // Default to "id" if no fields are specified
        const query = `
            query ($id: ID!) {
                ${resource}(id: $id) {
                    ${fields}
                }
            }
        `;
        const variables = { id };
        const response = await client.request(query, variables);
        return { data: response[resource] };
    },
    // other methods...
};

export default dataProvider;

2. Use the meta property in your useOne hook to specify the fields you need:

import { useOne } from "@refinedev/core";
import { dataProvider } from "./path-to-your-data-provider"; // Adjust the import path as necessary

interface IProduct {
    id: number;
    name: string;
    material: string;
}

const { data: vehicle_data, isLoading, isError } = useOne<IProduct, HttpError>({
    resource: "vehicles",
    id: "1",
    meta: {
        fields: "id name material", // Specify the fields you need
    },
    dataProvider,
});

import { useOne } from "@refinedev/core";
import { dataProvider } from "./path-to-your-data-provider"; // Adjust the import path as necessary

interface IProduct {
    id: number;
    name: string;
    material: string;
}

const { data: vehicle_data, isLoading, isError } = useOne<IProduct, HttpError>({
    resource: "vehicles",
    id: "1",
    meta: {
        fields: "id name material", // Specify the fields you need
    },
    dataProvider,
});

By using the meta property, you can dynamically specify the fields you need for each useOne call without having to create multiple dataProvider instances. This approach is more flexible and maintains a clean and reusable dataProvider. For more information on the meta property, you can refer to the official documentation (https://refine.dev/docs/data/hooks/use-one/#meta). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•15mo ago

<@240371095444652032> kapa.ai is still learning and improving, please let us know how it did by reacting below

useOne doesn't return expected value

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