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* add link to polymarket * check shape of polymarket response
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| import { useQuery } from "@tanstack/react-query"; | ||
|
|
||
| type PolymarketResponse = { | ||
| slug: string; | ||
| title: string; | ||
| icon: string; | ||
| description: string; | ||
| startDate: string; | ||
| creationDate: string; | ||
| endDate: string; | ||
| volume: number; | ||
| createdAt: string; | ||
| updatedAt: string; | ||
| }[]; | ||
|
|
||
| export type PolymarketData = PolymarketResponse[number] & { | ||
| link: string; | ||
| }; | ||
|
|
||
| function isPolymarketResponse(data: unknown): data is PolymarketResponse { | ||
| return Array.isArray(data) && | ||
| data.length && | ||
| typeof data[0] === "object" && | ||
| data[0] && | ||
| "slug" in data[0] | ||
| ? true | ||
| : false; | ||
| } | ||
|
|
||
| /** | ||
| * Searches Polymarket's api for a a market using a market's title. | ||
| * | ||
| * @param {string} title - The title of the market. | ||
| * @returns {PolymarketData} data - Relevant market data | ||
| */ | ||
| async function getPolymarketData(title: string): Promise<PolymarketData> { | ||
| const POLYMARKET_BASE_URL = "https://polymarket.com"; | ||
| const params = new URLSearchParams({ | ||
| _c: "all", | ||
| _p: "1", | ||
| _q: title, | ||
| }); | ||
|
|
||
| const url = `https://polymarket.com/api/events/search?${params.toString()}`; | ||
| const res = await fetch(url); | ||
| const search = await res.json(); | ||
| if (!isPolymarketResponse(search)) { | ||
| throw new Error("Unable to find market."); | ||
| } | ||
| const data = search[0]; | ||
|
|
||
| return { | ||
| ...data, | ||
| link: `${POLYMARKET_BASE_URL}/event/${data.slug}`, | ||
| }; | ||
| } | ||
|
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| export function usePolymarketData(title: string, shouldFetch = true) { | ||
| return useQuery({ | ||
| queryKey: [title], | ||
| queryFn: () => getPolymarketData(title), | ||
| onError: (err) => console.error(err), | ||
| enabled: !!title && shouldFetch, | ||
| refetchInterval: Infinity, | ||
| refetchOnMount: false, | ||
| }); | ||
| } |
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