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Generate Spotify Access Tokens

\n This app uses{\" \"}\n \n Authorization Code Flow\n {\" \"}\n to authenticate users:\n

\n This project sets the CLIENT_ID and CLIENT_SECRET environment variables for the relevant Spotify App.\n
\n We generate a unique code that you will use to authenticate to us: {c.get(\"state\")}\n
You can pick which scopes to authorize.
We construct a URL to redirect you to, which will ask you to authorize the app on Spotify.
You are redirected back here, with a code in the URL.
We exchange the code for an access token and refresh token, which we save.
\n You can request your access token at{\" \"}\n \n https://{new URL(c.req.url).hostname}/token?state={c.get(\"state\")}\n \n
If your access token expires, we use the refresh token to get a new one.
Use your access token to make requests to the Spotify API by importing `getSpotifyToken` in your other vals.

\n\n

\n Get started\n

\n\n

\n

\n If you get in a broken state, you can always{\" \"}\n \n remove access to this app from your Spotify account\n or clear your cookies and begin the token generation process again.\n

\n ))\n .get(\"/scopes\", c =>\n c.html(\n

Choose your Spotify Scopes

\n \n

\n ))\n .get(\"/login\", async (c) => {\n const state = c.get(\"state\");\n const scopes = c.req.queries(\"scopes[]\").join(\" \");\n\n await insertPendingCallback({ id: state });\n const params = new URLSearchParams({\n response_type: 'code',\n client_id: Deno.env.get(\"CLIENT_ID\"),\n scope: scopes,\n redirect_uri,\n state,\n })\n return c.redirect(\n `https://accounts.spotify.com/authorize?${params}`);\n}).get(\"/callback\", async (c) => {\n const code = c.req.query(\"code\");\n const state = c.req.query(\"state\") as string;\n\n if (state !== c.get(\"state\")) {\n return c.html(\"State mismatch 1\");\n }\n\n const rowInitial = getRow(state)\n if (!rowInitial) {\n return c.html(\"State mismatch 2\");\n }\n if (rowInitial.data) {\n return c.html(\"Already authenticated for that state\");\n }\n\n const data = await spotifyRequestToken({\n code,\n client_id: Deno.env.get(\"CLIENT_ID\"),\n client_secret: Deno.env.get(\"CLIENT_SECRET\"),\n redirect_uri,\n });\n\n if (data.error) return c.json(data.error);\n if (!data.access_token) return c.json(\"No access token\");\n await updateRow(state, { data })\n if (data.refresh_token) await updateRow(state, { refresh_token });\n\n return c.redirect(\"/token?state=\" + state);\n})\n .get(\"/token\", async (c) => {\n const state = c.req.query(\"state\") as string;\n try {\n const token = await getSpotifyToken(state);\n return c.json(token);\n } catch (e) {\n if (e === \"NO_DATA\") return c.json(\"No auth data found for supplied state\");\n if (e === \"NO_TOKEN\") return c.json(\"No refresh access token\");\n if (e.startsWith(\"REFRESH_ERROR: \")) return c.json(\"Refresh error: \" + e.split(\" : \")[1]);\n throw e;\n }\n});\n\nexport default app.fetch;","fileType","http",14,"parentId","createdAt",["D",1738706446949],"branchVersion",26,"label",[19],{"_33":82,"_13":83,"_37":84,"_44":-5,"_35":36,"_47":85,"_55":56,"_45":86,"_17":87,"_41":24,"_39":88,"_58":59,"_49":-5,"_60":89,"_18":90},{"_33":73,"_13":74,"_37":75,"_44":-5,"_35":36,"_47":76,"_55":56,"_45":77,"_17":78,"_41":69,"_39":79,"_58":59,"_49":-5,"_60":80,"_18":81},{"_33":63,"_13":64,"_37":65,"_44":-5,"_35":36,"_47":66,"_55":56,"_45":67,"_17":68,"_41":69,"_39":70,"_58":59,"_49":-5,"_60":71,"_18":72},{"_33":34,"_13":19,"_37":38,"_44":-5,"_35":36,"_47":48,"_55":56,"_45":57,"_17":43,"_41":42,"_39":40,"_58":59,"_49":-5,"_60":61,"_18":62},"latest",true,["D",1738706446949],"deleted",false,"children",[],[19],"ba3303de-e342-11ef-8ff1-e6cdfca9ef9f","getSpotifyToken","726e71c8-e342-11ef-9c89-e6cdfca9ef9f",23,["D",1738706120298],2,"script","import { getRow, getLatestRefreshRow, updateRow } from\"./db\";\n\nexport async function getSpotifyToken(state: string) {\n const authData = await getRow(state);\n if (!authData) throw \"NO_DATA\";\n\n const data = JSON.parse(authData.data);\n let expiresAt = data.now + (data.expires_in * 1000);\n if (expiresAt > Date.now()) {\n return data.access_token;\n }\n const refreshData = await getLatestRefreshRow(state);\n if (!refreshData) throw \"NO_DATA\";\n let refresh = await spotifyRefreshToken({\n refresh_token: refreshData.refresh_token,\n client_id: Deno.env.get(\"CLIENT_ID\"),\n client_secret: Deno.env.get(\"CLIENT_SECRET\"),\n });\n if (refresh.error) {\n console.error(refresh.error, refresh.error_description);\n throw \"REFRESH_ERROR: \" + refresh.error;\n }\n if (!refresh.access_token) throw \"NO_TOKEN\";\n await updateRow(state, { data: refresh })\n if (refresh.refresh_token) await updateRow(state, { refresh_token: refresh.refresh_token });\n return refresh.access_token\n}",[],[64],"c4d4c0f2-e342-11ef-ac12-e6cdfca9ef9f","db","fda971c0-e33d-11ef-b257-e6cdfca9ef9f",24,["D",1738706138130],7,"import { sqlite } from \"https://esm.town/v/std/sqlite?v=4\";\nimport { eq, sql, and, isNotNull } from \"npm:drizzle-orm\";\nimport { drizzle } from \"npm:drizzle-orm/libsql\";\nimport { sqliteTable, text } from \"npm:drizzle-orm/sqlite-core\";\n\nawait sqlite.execute(\"CREATE TABLE IF NOT EXISTS spotify_auth (id text primary_key, data text, refresh_token text)\")\n\nexport const db = drizzle(sqlite as any);\nexport const table = sqliteTable(\"spotify_auth\", {\n id: text(\"id\").primaryKey(),\n data: text(\"data\"),\n refresh_token: text(\"refresh_token\"),\n});\n\nexport const insertPendingCallback = (id: string) =>\n db.insert(table).values([{ id }]);\n\nexport const getRow = async (id: string) => {\n const [row] = await db.select().from(table).where(eq(table.id, id)).limit(1);\n return row\n}\nexport const getLatestRefreshRow = async (id: string) => {\n const [row] = await db.select().from(table).where(and(eq(table.id, id), isNotNull(table.refresh_token))).limit(1);\n return row;\n}\n\nexport const updateRow = async (id: string, data: Partial<{ data: object, refresh_token: string }>) => {\n if (data.data) {\n data.data.now = Date.now()\n data.data = JSON.stringify(data.data);\n }\n await db.update(table).set(...data).where(eq(table.id, id));\n}",[],[74],"ed58e7dc-e343-11ef-8a44-e6cdfca9ef9f","README.md","bd4e58c4-e343-11ef-9bbe-e6cdfca9ef9f",28,["D",1738706635603],1,"# spotifyOauthServer\n\nInstantly handle Spotify access with this server!\n\nHandles the token generation and refreshing as required.\n\nMake sure to set the CLIENT_ID and CLIENT_SECRET environment variables, as well as the URL of the server in the 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