File size: 4,847 Bytes
34cfb9f
 
 
 
295842d
 
34cfb9f
 
 
 
 
 
 
 
 
 
 
0b7a4b4
 
34cfb9f
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0b7a4b4
 
295842d
 
 
 
 
 
 
 
 
34cfb9f
 
 
295842d
34cfb9f
295842d
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
34cfb9f
295842d
 
 
 
34cfb9f
 
0b7a4b4
295842d
34cfb9f
0b7a4b4
 
34cfb9f
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
import { useEffect, useState } from "react";
import { createDb } from "./duck";
import { Table } from "./table";
import { AsyncDuckDBConnection } from "@duckdb/duckdb-wasm";
import { Button } from "~/components/ui/button";
import { Textarea } from "~/components/ui/textarea";

const DEFAULT_DATASET_URL =
  "https://huggingface.co/datasets/openai/openai_humaneval/resolve/main/openai_humaneval/test-00000-of-00001.parquet";

// https://duckdb.org/docs/api/wasm/query#arrow-table-to-json
// TODO: import the arrow lib and use the correct type
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const arrowResultToJson = (arrowResult: any) => {
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  return arrowResult.toArray().map((row: any) => row.toJSON());
};

function App() {
  const [loading, setLoading] = useState(false);
  const [datasetUrl, setDatasetUrl] = useState("");
  const [textField, setTextField] = useState("");
  const [db, setDb] = useState<Awaited<ReturnType<typeof createDb>> | null>(
    null
  );
  const [dataset, setDataset] = useState<null>(null);
  const [error, setError] = useState<string | null>(null);
  useEffect(() => {
    const status = {
      killed: false,
    };
    const initDb = async () => {
      const db = await createDb();
      if (status.killed) {
        db.terminate();
        return;
      }
      setDb(db);
    };
    initDb();

    return () => {
      status.killed = true;
      setDb((db) => {
        if (db) {
          db.terminate();
        }
        return null;
      });
    };
  }, []);

  useEffect(() => {
    if (db && datasetUrl) {
      setLoading(true);
      setDataset(null);
      setError(null);
      console.log("Loading", datasetUrl);
      const status: { conn: AsyncDuckDBConnection | null; killed: boolean } = {
        conn: null,
        killed: false,
      };
      db.connect().then((conn) => {
        if (status.killed) {
          conn.close();
          return;
        }
        status.conn = conn;
        conn
          // we get httpfs for free with cors restrictions
          // we get parquet downloaded as we load it
          // https://duckdb.org/docs/api/wasm/extensions
          // https://duckdb.org/docs/api/wasm/data_ingestion#parquet
          .query(
            `LOAD parquet;LOAD httpfs;SELECT * FROM '${datasetUrl}' LIMIT 10`
          )
          .then((result) => setDataset(arrowResultToJson(result)))
          .catch((err) => {
            console.error(err);
            setError(err.message);
            setDataset(null);
          })
          .finally(() => {
            conn.close();
            setLoading(false);
          });
      });

      return () => {
        status.killed = true;
        if (status.conn) {
          console.log("Closing connection");
          status.conn.close();
        }
      };
    } else if (db) {
      console.log("Resetting db");
      db.reset();
    }
  }, [db, datasetUrl]);

  const handleSubmit = (e: React.FormEvent<HTMLFormElement>) => {
    e.preventDefault();
    setDatasetUrl(textField);
  };

  return (
    <section className="flex flex-col gap-4 w-full pt-10 px-4 lg:pt-[15%] items-center min-h-screen">
      <h1 className="text-4xl font-bold">📣🦆 Quack</h1>
      <h2 className="text-2xl font-medium">View Parquet Datasets via URL</h2>
      <form
        onSubmit={handleSubmit}
        className="lg:w-1/2 w-full flex flex-col gap-2"
      >
        <Textarea
          rows={2}
          name="textField"
          onChange={(e) => setTextField(e.target.value)}
          value={textField}
          className="w-full lg:w-full"
        />
        <div className="flex flex-row justify-between gap-2">
          <Button
            className="w-full"
            type="submit"
            disabled={!textField || textField === datasetUrl}
          >
            Load
          </Button>
          <Button
            variant={"secondary"}
            type="button"
            onClick={() => {
              setTextField(DEFAULT_DATASET_URL);
              setDatasetUrl(DEFAULT_DATASET_URL);
            }}
          >
            Load Default
          </Button>
          <Button
            type="button"
            variant={"destructive"}
            onClick={() => {
              setTextField("");
              setDataset(null);
              setDatasetUrl("");
            }}
          >
            Clear
          </Button>
        </div>
      </form>
      <div className="flex flex-col gap-2 w-full max-w-full overflow-x-auto bg-secondary rounded">
        {loading && (
          <p className="text-lg font-medium self-center">Loading...</p>
        )}
        {error && <p style={{ color: "red" }}>{error}</p>}
        {dataset && <Table data={dataset} />}
      </div>
    </section>
  );
}

export default App;