Status Code: 400
API Error Response: {
  message: "Argument 'competitionId' is expected to be either an integer in a specified range or a competition code.",
  errorCode: 400
}
This is the error I'm facing 
// controllers/leagueController.js

const axios = require("axios");

/**
 * leagueController - Fetches detailed information about a specific league.
 *
 * @param {Object} req - Express request object.
 * @param {Object} res - Express response object.
 */
async function leagueController(req, res) {
  const { leagueId } = req.params;

  if (!leagueId) {
    return res.status(400).json({ message: "League ID is required." });
  }

  const API_BASE_URL = "https://api.football-data.org/v4";
  const API_KEY = process.env.API_FOOTBALL_KEY;

  // Optional: Map competition codes to numeric IDs if needed
  const leagueCodeToIdMap = {
    PL: 2021, // Premier League
    PD: 2014, // La Liga
    BL1: 2002, // Bundesliga
    SA: 2019, // Serie A
    FL1: 2015, // Ligue 1
    CL: 2001, // UEFA Champions League
    EL: 2146, // UEFA Europa League
    // Add more mappings as necessary
  };

  // Convert league code to competition ID if a mapping exists
  const competitionId = leagueCodeToIdMap[leagueId.toUpperCase()] || leagueId;

  try {
    // 1. Fetch League Details
    const leagueResponse = await axios.get(
      `${API_BASE_URL}/competitions/${competitionId}`,
      {
        headers: { "X-Auth-Token": API_KEY },
      }
    );

    const leagueData = leagueResponse.data;

    // 2. Fetch Standings
    const standingsResponse = await axios.get(
      `${API_BASE_URL}/competitions/${competitionId}/standings`,
      {
        headers: { "X-Auth-Token": API_KEY },
      }
    );

    const standingsData = standingsResponse.data;

    // 3. Fetch Top Scorers
    // Remove the unsupported 'limit' parameter
    const scorersResponse = await axios.get(
      `${API_BASE_URL}/competitions/${competitionId}/scorers`,
      {
        headers: { "X-Auth-Token": API_KEY },
        // Remove params: { limit: 10 },
      }
    );

    const scorersData = scorersResponse.data;

    // Process League Info
    const leagueInfo = {
      id: leagueData.id,
      name: leagueData.name,
      area: leagueData.area.name,
      code: leagueData.code,
      type: leagueData.type,
      emblem: leagueData.emblem,
      currentSeason: leagueData.currentSeason,
      lastUpdated: leagueData.lastUpdated,
    };

    // Process Standings (Assuming 'TOTAL' standings type)
    const totalStanding = standingsData.standings.find(
      (standing) => standing.type === "TOTAL"
    );

    const standings = totalStanding
      ? totalStanding.table.map((team) => ({
          position: team.position,
          team: team.team.name,
          playedGames: team.playedGames,
          won: team.won,
          draw: team.draw,
          lost: team.lost,
          points: team.points,
          goalsFor: team.goalsFor,
          goalsAgainst: team.goalsAgainst,
          goalDifference: team.goalDifference,
        }))
      : [];

    // Process Top Scorers (Top 10)
    // Slice the top 10 scorers on the backend
    const topScorers = scorersData.scorers.slice(0, 10).map((scorer) => ({
      player: scorer.player.name,
      team: scorer.team.name,
      goals: scorer.numberOfGoals,
    }));

    // Respond with the aggregated data
    res.status(200).json({
      league: leagueInfo,
      standings,
      topScorers,
    });
  } catch (error) {
    if (error.response) {
      // API responded with a status outside 2xx
      console.error("API Error Response:", error.response.data);
      console.error("Status Code:", error.response.status);

      if (error.response.status === 404) {
        return res.status(404).json({
          message: "League not found. Please verify the league ID.",
        });
      } else if (error.response.status === 403) {
        return res.status(403).json({
          message: "Access forbidden. Check your API key and permissions.",
        });
      } else if (error.response.status === 400) {
        return res.status(400).json({
          message: "Invalid competition ID or code provided.",
        });
      }
    } else if (error.request) {
      // No response received from API
      console.error("No response received from API:", error.request);
      return res.status(503).json({
        message: "Service unavailable. Please try again later.",
      });
    } else {
      // Error setting up the request
      console.error("Error setting up API request:", error.message);
      return res.status(500).json({
        message: "Internal server error.",
      });
    }

    // General fallback error
    res.status(500).json({
      message: "Unable to retrieve league details. Please try again later.",
    });
  }
}

module.exports = leagueController;

This is my leagueController.js
// controllers/leaguesController.js

/**
 * leaguesController - Returns a list of predefined leagues.
 *
 * @param {Object} req - Express request object.
 * @param {Object} res - Express response object.
 */
function leaguesController(req, res) {
  try {
    const predefinedLeagues = [
      { id: "PL", name: "Premier League" },
      { id: "PD", name: "La Liga" },
      { id: "BL1", name: "Bundesliga" },
      { id: "SA", name: "Serie A" },
      { id: "FL1", name: "Ligue 1" },
      { id: "CL", name: "UEFA Champions League" },
      { id: "EL", name: "UEFA Europa League" },
      // Add more leagues as needed
    ];

    res.status(200).json(predefinedLeagues);
  } catch (error) {
    console.error("Error fetching leagues:", error.message);
    res.status(500).json({ message: "Failed to fetch leagues." });
  }
}

module.exports = leaguesController;
Competition
Overview
You will use the list representation of the Competition Resource to find out which competitions are available and see which ones you have access to. You can also get insight into how much historical data is available for a particular competition by calling the the resource by itself (with an id).

Let’s see the entire beauty of the competition resource below.

curl -XGET 'https://api.football-data.org/v4/competitions/PL' -H "X-Auth-Token: UR_TOKEN"
{
    "area": {
        "id": 2072,
        "name": "England",
        "code": "ENG",
        "flag": "https://crests.football-data.org/770.svg"
    },
    "id": 2021,
    "name": "Premier League",
    "code": "PL",
    "type": "LEAGUE",
    "emblem": "https://crests.football-data.org/PL.png",
    "currentSeason": {
        "id": 733,
        "startDate": "2021-08-13",
        "endDate": "2022-05-22",
        "currentMatchday": 37,
        "winner": null,
        "stages": [
            "REGULAR_SEASON"
        ]
    },
    "seasons": [
        {
            "id": 733,
            "startDate": "2021-08-13",
            "endDate": "2022-05-22",
            "currentMatchday": 37,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 619,
            "startDate": "2020-09-12",
            "endDate": "2021-05-23",
            "currentMatchday": 38,
            "winner": {
                "id": 65,
                "name": "Manchester City FC",
                "shortName": "Man City",
                "tla": "MCI",
                "crest": "https://crests.football-data.org/65.png",
                "address": "SportCity Manchester M11 3FF",
                "website": "https://www.mancity.com",
                "founded": 1880,
                "clubColors": "Sky Blue / White",
                "venue": "Etihad Stadium",
                "lastUpdated": "2022-02-10T19:48:37Z"
            },
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 468,
            "startDate": "2019-08-09",
            "endDate": "2020-07-26",
            "currentMatchday": 38,
            "winner": {
                "id": 64,
                "name": "Liverpool FC",
                "shortName": "Liverpool",
                "tla": "LIV",
                "crest": "https://crests.football-data.org/64.png",
                "address": "Anfield Road Liverpool L4 0TH",
                "website": "http://www.liverpoolfc.tv",
                "founded": 1892,
                "clubColors": "Red / White",
                "venue": "Anfield",
                "lastUpdated": "2022-02-10T19:30:22Z"
            },
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 151,
            "startDate": "2018-08-10",
            "endDate": "2019-05-12",
            "currentMatchday": 38,
            "winner": {
                "id": 65,
                "name": "Manchester City FC",
                "shortName": "Man City",
                "tla": "MCI",
                "crest": "https://crests.football-data.org/65.png",
                "address": "SportCity Manchester M11 3FF",
                "website": "https://www.mancity.com",
                "founded": 1880,
                "clubColors": "Sky Blue / White",
                "venue": "Etihad Stadium",
                "lastUpdated": "2022-02-10T19:48:37Z"
            },
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 23,
            "startDate": "2017-08-11",
            "endDate": "2018-05-13",
            "currentMatchday": 38,
            "winner": {
                "id": 65,
                "name": "Manchester City FC",
                "shortName": "Man City",
                "tla": "MCI",
                "crest": "https://crests.football-data.org/65.png",
                "address": "SportCity Manchester M11 3FF",
                "website": "https://www.mancity.com",
                "founded": 1880,
                "clubColors": "Sky Blue / White",
                "venue": "Etihad Stadium",
                "lastUpdated": "2022-02-10T19:48:37Z"
            },
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 256,
            "startDate": "2016-08-13",
            "endDate": "2017-05-21",
            "currentMatchday": null,
            "winner": {
                "id": 61,
                "name": "Chelsea FC",
                "shortName": "Chelsea",
                "tla": "CHE",
                "crest": "https://crests.football-data.org/61.png",
                "address": "Fulham Road London SW6 1HS",
                "website": "http://www.chelseafc.com",
                "founded": 1905,
                "clubColors": "Royal Blue / White",
                "venue": "Stamford Bridge",
                "lastUpdated": "2022-02-10T19:24:40Z"
            },
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        [ ... way more seasons ... ]
        {
            "id": 973,
            "startDate": "1898-08-30",
            "endDate": "1899-04-27",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 983,
            "startDate": "1897-08-30",
            "endDate": "1898-04-28",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 984,
            "startDate": "1896-08-30",
            "endDate": "1897-04-24",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 975,
            "startDate": "1895-08-31",
            "endDate": "1896-04-27",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 976,
            "startDate": "1894-08-30",
            "endDate": "1895-04-22",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 981,
            "startDate": "1893-08-31",
            "endDate": "1894-04-21",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 979,
            "startDate": "1892-09-01",
            "endDate": "1893-04-15",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 985,
            "startDate": "1891-09-03",
            "endDate": "1892-04-28",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 977,
            "startDate": "1890-09-04",
            "endDate": "1891-04-16",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 978,
            "startDate": "1889-09-05",
            "endDate": "1890-03-29",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        },
        {
            "id": 1040,
            "startDate": "1888-09-06",
            "endDate": "1889-04-18",
            "currentMatchday": null,
            "winner": null,
            "stages": [
                "REGULAR_SEASON"
            ]
        }
    ],
    "lastUpdated": "2022-03-20T08:58:54Z"
}
Available filters for the list resource
The resource itself does not provide any filters, but the list resource does. Please notice that by default the competitions are filtered for the authenticated client. You can disable authentication (not pass a token) to list all available competitions. Besides there is only:

Filter name	Possible values	Sample
areas

A (comma separated) list of area ids
like: String /\d+,\d+/

/?areas=2016,2023,2025

Standings
While in print media you only find one (overall) standing most of the time, actually there are way more standings and you use the Standing Subresource to access them.

Click here to see a sample implementation with some layers of plumbing and transformation code in between.

Standings give a quick overview of a teams' performance relative to their opponents by aggregating data points over a certain range of time.

I provide official standings for the running season, so you can show it on your website with confidence. However, be prepared to save a snapshot of the standing after the season ended for future use, as I will remove deducted points for past seasons. This is because the (my) main purpose of past data is data analysis targeting team performances. And these shall not be affected by legal decisions.
The Resource acts differently depending on the type of the competition it is based on. Basically this is three things:

it is not available (returns 404) for competitions of type CUP and PLAYOFFS

it returns a list of standings, one for each group for competitions of type LEAGUE_CUP

it returns a TOTAL, HOME and AWAY standing for competitions of type LEAGUE

Let’s see the entire beauty of the Standing Resource below.

curl -XGET 'https://api.football-data.org/v4/competitions/PD/standings' -H "X-Auth-Token: UR_TOKEN"
{
    "filters": {
        "season": "2021"
    },
    "area": {
        "id": 2224,
        "name": "Spain",
        "code": "ESP",
        "flag": "https://crests.football-data.org/760.svg"
    },
    "competition": {
        "id": 2014,
        "name": "Primera Division",
        "code": "PD",
        "type": "LEAGUE",
        "emblem": "https://crests.football-data.org/PD.png"
    },
    "season": {
        "id": 380,
        "startDate": "2021-08-13",
        "endDate": "2022-05-22",
        "currentMatchday": 34,
        "winner": null,
        "stages": [
            "REGULAR_SEASON"
        ]
    },
    "standings": [
        {
            "stage": "REGULAR_SEASON",
            "type": "TOTAL",
            "group": null,
            "table": [
                {
                    "position": 1,
                    "team": {
                        "id": 86,
                        "name": "Real Madrid CF",
                        "shortName": "Real Madrid",
                        "tla": "RMA",
                        "crest": "https://crests.football-data.org/86.png"
                    },
                    "playedGames": 34,
                    "form": "W,W,W,W,W",
                    "won": 25,
                    "draw": 6,
                    "lost": 3,
                    "points": 81,
                    "goalsFor": 73,
                    "goalsAgainst": 29,
                    "goalDifference": 44
                },
                {
                    "position": 2,
                    "team": {
                        "id": 81,
                        "name": "FC Barcelona",
                        "shortName": "Barça",
                        "tla": "FCB",
                        "crest": "https://crests.football-data.org/81.svg"
                    },
                    "playedGames": 34,
                    "form": "W,L,W,L,W",
                    "won": 19,
                    "draw": 9,
                    "lost": 6,
                    "points": 66,
                    "goalsFor": 63,
                    "goalsAgainst": 34,
                    "goalDifference": 29
                },
                {
                    "position": 3,
                    "team": {
                        "id": 559,
                        "name": "Sevilla FC",
                        "shortName": "Sevilla FC",
                        "tla": "SEV",
                        "crest": "https://crests.football-data.org/559.svg"
                    },
                    "playedGames": 34,
                    "form": "D,W,L,W,L",
                    "won": 17,
                    "draw": 13,
                    "lost": 4,
                    "points": 64,
                    "goalsFor": 50,
                    "goalsAgainst": 28,
                    "goalDifference": 22
                },
                {
                    "position": 4,
                    "team": {
                        "id": 78,
                        "name": "Club Atlético de Madrid",
                        "shortName": "Atleti",
                        "tla": "ATL",
                        "crest": "https://crests.football-data.org/78.svg"
                    },
                    "playedGames": 34,
                    "form": "L,D,W,L,W",
                    "won": 18,
                    "draw": 7,
                    "lost": 9,
                    "points": 61,
                    "goalsFor": 59,
                    "goalsAgainst": 41,
                    "goalDifference": 18
                },
                {
                    "position": 5,
                    "team": {
                        "id": 90,
                        "name": "Real Betis Balompié",
                        "shortName": "Real Betis",
                        "tla": "BET",
                        "crest": "https://crests.football-data.org/90.svg"
                    },
                    "playedGames": 33,
                    "form": "L,D,W,W,D",
                    "won": 17,
                    "draw": 6,
                    "lost": 10,
                    "points": 57,
                    "goalsFor": 56,
                    "goalsAgainst": 38,
                    "goalDifference": 18
                },
                [ ... way more standings ... ]
                {
                    "position": 19,
                    "team": {
                        "id": 263,
                        "name": "Deportivo Alavés",
                        "shortName": "Alavés",
                        "tla": "ALA",
                        "crest": "https://crests.football-data.org/263.png"
                    },
                    "playedGames": 34,
                    "form": "W,L,W,L,L",
                    "won": 7,
                    "draw": 7,
                    "lost": 20,
                    "points": 28,
                    "goalsFor": 28,
                    "goalsAgainst": 56,
                    "goalDifference": -28
                },
                {
                    "position": 20,
                    "team": {
                        "id": 88,
                        "name": "Levante UD",
                        "shortName": "Levante",
                        "tla": "LEV",
                        "crest": "https://crests.football-data.org/88.svg"
                    },
                    "playedGames": 34,
                    "form": "D,L,W,L,W",
                    "won": 5,
                    "draw": 11,
                    "lost": 18,
                    "points": 26,
                    "goalsFor": 42,
                    "goalsAgainst": 66,
                    "goalDifference": -24
                }
            ]
        },
        {
            "stage": "REGULAR_SEASON",
            "type": "HOME",
            "group": null,
            "table": [
                {
                    "position": 1,
                    "team": {
                        "id": 86,
                        "name": "Real Madrid CF",
                        "shortName": "Real Madrid",
                        "tla": "RMA",
                        "crest": "https://crests.football-data.org/86.png"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 12,
                    "draw": 4,
                    "lost": 1,
                    "points": 40,
                    "goalsFor": 38,
                    "goalsAgainst": 13,
                    "goalDifference": 25
                },
                {
                    "position": 2,
                    "team": {
                        "id": 559,
                        "name": "Sevilla FC",
                        "shortName": "Sevilla FC",
                        "tla": "SEV",
                        "crest": "https://crests.football-data.org/559.svg"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 11,
                    "draw": 5,
                    "lost": 1,
                    "points": 38,
                    "goalsFor": 35,
                    "goalsAgainst": 17,
                    "goalDifference": 18
                },
                {
                    "position": 3,
                    "team": {
                        "id": 78,
                        "name": "Club Atlético de Madrid",
                        "shortName": "Atleti",
                        "tla": "ATL",
                        "crest": "https://crests.football-data.org/78.svg"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 11,
                    "draw": 4,
                    "lost": 2,
                    "points": 37,
                    "goalsFor": 31,
                    "goalsAgainst": 15,
                    "goalDifference": 16
                },
                {
                    "position": 4,
                    "team": {
                        "id": 94,
                        "name": "Villarreal CF",
                        "shortName": "Villarreal",
                        "tla": "VIL",
                        "crest": "https://crests.football-data.org/94.png"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 10,
                    "draw": 5,
                    "lost": 2,
                    "points": 35,
                    "goalsFor": 38,
                    "goalsAgainst": 15,
                    "goalDifference": 23
                },
                [ ... way more standings ... ]
                {
                    "position": 20,
                    "team": {
                        "id": 264,
                        "name": "Cádiz CF",
                        "shortName": "Cádiz CF",
                        "tla": "CAD",
                        "crest": "https://crests.football-data.org/264.png"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 2,
                    "draw": 8,
                    "lost": 7,
                    "points": 14,
                    "goalsFor": 15,
                    "goalsAgainst": 23,
                    "goalDifference": -8
                }
            ]
        },
        {
            "stage": "REGULAR_SEASON",
            "type": "AWAY",
            "group": null,
            "table": [
                {
                    "position": 1,
                    "team": {
                        "id": 86,
                        "name": "Real Madrid CF",
                        "shortName": "Real Madrid",
                        "tla": "RMA",
                        "crest": "https://crests.football-data.org/86.png"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 13,
                    "draw": 2,
                    "lost": 2,
                    "points": 41,
                    "goalsFor": 35,
                    "goalsAgainst": 16,
                    "goalDifference": 19
                },
                [ ... way more standings ... ]
                {
                    "position": 17,
                    "team": {
                        "id": 88,
                        "name": "Levante UD",
                        "shortName": "Levante",
                        "tla": "LEV",
                        "crest": "https://crests.football-data.org/88.svg"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 2,
                    "draw": 4,
                    "lost": 11,
                    "points": 10,
                    "goalsFor": 19,
                    "goalsAgainst": 38,
                    "goalDifference": -19
                },
                {
                    "position": 18,
                    "team": {
                        "id": 80,
                        "name": "RCD Espanyol de Barcelona",
                        "shortName": "Espanyol",
                        "tla": "ESP",
                        "crest": "https://crests.football-data.org/80.svg"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 1,
                    "draw": 5,
                    "lost": 11,
                    "points": 8,
                    "goalsFor": 14,
                    "goalsAgainst": 32,
                    "goalDifference": -18
                },
                {
                    "position": 19,
                    "team": {
                        "id": 89,
                        "name": "RCD Mallorca",
                        "shortName": "Mallorca",
                        "tla": "MAL",
                        "crest": "https://crests.football-data.org/89.png"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 2,
                    "draw": 2,
                    "lost": 13,
                    "points": 8,
                    "goalsFor": 14,
                    "goalsAgainst": 38,
                    "goalDifference": -24
                },
                {
                    "position": 20,
                    "team": {
                        "id": 263,
                        "name": "Deportivo Alavés",
                        "shortName": "Alavés",
                        "tla": "ALA",
                        "crest": "https://crests.football-data.org/263.png"
                    },
                    "playedGames": 17,
                    "form": "",
                    "won": 1,
                    "draw": 3,
                    "lost": 13,
                    "points": 6,
                    "goalsFor": 13,
                    "goalsAgainst": 37,
                    "goalDifference": -24
                }
            ]
        }
    ]
}
Available filters for Standings
Filter name	Possible values	Sample
season

An integer, like [\d]{4}

/?season=1981

matchday

An integer, like [\d]{2}

/?matchday=15

date

A date in format yyyy-MM-dd

/?date=2022-01-01 to find out who was in the lead at new years eve

You can combine the season and matchday filters. In case they are used, the resulting standings are compiled by match information only, so they lack possible deducted points.
(Top) Scorers
So who does really shine this season when it comes to bringing the teams in front? Use the Top Scorer Subresource to find out. It lists all assists and goals for a competitions' season including assists grouped by player.

Click here to see a sample implementation with some layers of plumbing and transformation code in between.

curl -XGET 'https://api.football-data.org/v4/competitions/SA/scorers' -H "X-Auth-Token: UR_TOKEN"
{
    "count": 10,
    "filters": {
        "limit": 10
    },
    "competition": {
        "id": 2019,
        "name": "Serie A",
        "code": "SA",
        "type": "LEAGUE",
        "emblem": "https://crests.football-data.org/SA.png"
    },
    "season": {
        "id": 638,
        "startDate": "2020-09-19",
        "endDate": "2021-05-23",
        "currentMatchday": 38,
        "winner": {
            "id": 108,
            "name": "FC Internazionale Milano",
            "shortName": "Inter",
            "tla": "INT",
            "crest": "https://crests.football-data.org/108.png",
            "address": "Corso Vittorio Emanuele II 9 Milano 20122",
            "phone": "+39 (02) 77151",
            "website": "http://www.inter.it",
            "email": "segreteriaccic@inter.it",
            "founded": 1908,
            "clubColors": "Blue / Black",
            "venue": "Stadio Giuseppe Meazza",
            "lastUpdated": "2021-11-24T14:55:58Z"
        },
        "stages": [
            "REGULAR_SEASON"
        ]
    },
    "scorers": [
        {
            "player": {
                "id": 44,
                "name": "Cristiano Ronaldo",
                "firstName": "Cristiano Ronaldo",
                "lastName": "dos Santos Aveiro",
                "dateOfBirth": "1985-02-05",
                "countryOfBirth": "Portugal",
                "nationality": "Portugal",
                "position": "Attacker",
                "shirtNumber": null,
                "lastUpdated": "2021-10-13T08:04:10Z"
            },
            "team": {
                "id": 109,
                "name": "Juventus FC",
                "shortName": "Juventus",
                "tla": "JUV",
                "crest": "https://crests.football-data.org/109.svg",
                "address": "Corso Galileo Ferraris, 32 Torino 10128",
                "phone": "+39 (011) 65631",
                "website": "http://www.juventus.com",
                "email": "francesco.gianello@juventus.com",
                "founded": 1897,
                "clubColors": "White / Black",
                "venue": "Allianz Stadium",
                "lastUpdated": "2020-11-26T02:19:40Z"
            },
            "goals": 29,
            "assists": 3,
            "penalties": 6
        },
        {
            "player": {
                "id": 3662,
                "name": "Romelu Lukaku",
                "firstName": "Romelu",
                "lastName": "Lukaku Menama",
                "dateOfBirth": "1993-05-13",
                "countryOfBirth": "Belgium",
                "nationality": "Belgium",
                "position": "Attacker",
                "shirtNumber": null,
                "lastUpdated": "2021-10-13T08:04:13Z"
            },
            "team": {
                "id": 108,
                "name": "FC Internazionale Milano",
                "shortName": "Inter",
                "tla": "INT",
                "crest": "https://crests.football-data.org/108.png",
                "address": "Corso Vittorio Emanuele II 9 Milano 20122",
                "phone": "+39 (02) 77151",
                "website": "http://www.inter.it",
                "email": "segreteriaccic@inter.it",
                "founded": 1908,
                "clubColors": "Blue / Black",
                "venue": "Stadio Giuseppe Meazza",
                "lastUpdated": "2021-11-24T14:55:58Z"
            },
            "goals": 24,
            "assists": 11,
            "penalties": 6
        },
        {
            "player": {
                "id": 57,
                "name": "Luis Muriel",
                "firstName": "Luis Fernando",
                "lastName": null,
                "dateOfBirth": "1991-04-16",
                "countryOfBirth": "Colombia",
                "nationality": "Colombia",
                "position": "Attacker",
                "shirtNumber": null,
                "lastUpdated": "2020-09-07T21:10:15Z"
            },
            "team": {
                "id": 102,
                "name": "Atalanta BC",
                "shortName": "Atalanta",
                "tla": "ATA",
                "crest": "https://crests.football-data.org/102.svg",
                "address": "Corso Europa, 46, Zingonia Ciserano 24040",
                "phone": "+39 (035) 4186211",
                "website": "http://www.atalanta.it",
                "email": "info@atalanta.it",
                "founded": 1904,
                "clubColors": "Black / Blue",
                "venue": "Stadio Atleti Azzurri d'Italia",
                "lastUpdated": "2020-11-26T02:19:32Z"
            },
            "goals": 22,
            "assists": 7,
            "penalties": 2
        },
        {
            "player": {
                "id": 82002,
                "name": "Dušan Vlahović",
                "firstName": "Dušan",
                "lastName": null,
                "dateOfBirth": "2000-01-28",
                "countryOfBirth": "Serbia",
                "nationality": "Serbia",
                "position": "Attacker",
                "shirtNumber": null,
                "lastUpdated": "2020-09-07T21:10:05Z"
            },
            "team": {
                "id": 99,
                "name": "ACF Fiorentina",
                "shortName": "Fiorentina",
                "tla": "FIO",
                "crest": "https://crests.football-data.org/99.svg",
                "address": "Viale Manfredo Fanti 4 Firenze 50137",
                "phone": "+39 (055) 5030190",
                "website": "http://www.acffiorentina.it",
                "email": "segreteria@acffiorentina.it",
                "founded": 1926,
                "clubColors": "Purple / White",
                "venue": "Stadio Artemio Franchi",
                "lastUpdated": "2020-11-26T02:23:02Z"
            },
            "goals": 21,
            "assists": 2,
            "penalties": 6
        },
        {
            "player": {
                "id": 2076,
                "name": "Ciro Immobile",
                "firstName": "Ciro",
                "lastName": "Immobile",
                "dateOfBirth": "1990-02-20",
                "countryOfBirth": "Italy",
                "nationality": "Italy",
                "position": "Attacker",
                "shirtNumber": null,
                "lastUpdated": "2021-10-13T08:03:51Z"
            },
            "team": {
                "id": 110,
                "name": "SS Lazio",
                "shortName": "Lazio",
                "tla": "LAZ",
                "crest": "https://crests.football-data.org/110.svg",
                "address": "Via di Santa Cornelia, 1000 Formello 00060",
                "phone": "+39 (06) 976071",
                "website": "http://www.sslazio.it",
                "email": "segreteria.lazio@sslazio.it",
                "founded": 1900,
                "clubColors": "White / Sky Blue",
                "venue": "Stadio Olimpico",
                "lastUpdated": "2020-11-26T02:19:41Z"
            },
            "goals": 20,
            "assists": 6,
            "penalties": 4
        },
        {
            "player": {
                "id": 2236,
                "name": "Simeon Nwankwo",
                "firstName": "Simeon",
                "lastName": null,
                "dateOfBirth": "1992-05-07",
                "countryOfBirth": "Nigeria",
                "nationality": "Nigeria",
                "position": "Attacker",
                "shirtNumber": null,
                "lastUpdated": "2020-09-07T21:10:48Z"
            },
            "team": {
                "id": 472,
                "name": "FC Crotone",
                "shortName": "Crotone",
                "tla": "CRO",
                "crest": "https://crests.football-data.org/472.png",
                "address": "Via Cutro Crotone 88900",
                "phone": "+39 (0962) 28 919",
                "website": "http://www.fccrotone.it",
                "email": "info@fccrotone.it",
                "founded": 1923,
                "clubColors": "Blue / Red",
                "venue": "Stadio Ezio Scida",
                "lastUpdated": "2022-03-20T17:52:58Z"
            },
            "goals": 20,
            "assists": 2,
            "penalties": 8
        },
        {
            "player": {
                "id": 2092,
                "name": "Lorenzo Insigne",
                "firstName": "Lorenzo",
                "lastName": "Insigne",
                "dateOfBirth": "1991-06-04",
                "countryOfBirth": "Italy",
                "nationality": "Italy",
                "position": "Midfielder",
                "shirtNumber": null,
                "lastUpdated": "2021-10-13T08:03:51Z"
            },
            "team": {
                "id": 113,
                "name": "SSC Napoli",
                "shortName": "Napoli",
                "tla": "NAP",
                "crest": "https://crests.football-data.org/113.svg",
                "address": "Centro Tecnico di Castel Volturno, Via S.S. Domitana, Km 35 Castel Volturno 81030",
                "phone": "+39 (081) 5095344",
                "website": "http://www.sscnapoli.it",
                "email": "infocalcio@sscn.it",
                "founded": 1904,
                "clubColors": "Sky Blue / White",
                "venue": "Stadio San Paolo",
                "lastUpdated": "2020-11-26T02:19:45Z"
            },
            "goals": 19,
            "assists": 8,
            "penalties": 7
        },
        {
            "player": {
                "id": 3220,
                "name": "Lautaro Martínez",
                "firstName": "Lautaro Javier",
                "lastName": null,
                "dateOfBirth": "1997-08-22",
                "countryOfBirth": "Argentina",
                "nationality": "Argentina",
                "position": "Attacker",
                "shirtNumber": null,
                "lastUpdated": "2020-09-07T21:10:27Z"
            },
            "team": {
                "id": 108,
                "name": "FC Internazionale Milano",
                "shortName": "Inter",
                "tla": "INT",
                "crest": "https://crests.football-data.org/108.png",
                "address": "Corso Vittorio Emanuele II 9 Milano 20122",
                "phone": "+39 (02) 77151",
                "website": "http://www.inter.it",
                "email": "segreteriaccic@inter.it",
                "founded": 1908,
                "clubColors": "Blue / Black",
                "venue": "Stadio Giuseppe Meazza",
                "lastUpdated": "2021-11-24T14:55:58Z"
            },
            "goals": 17,
            "assists": 5,
            "penalties": 2
        },
        {
            "player": {
                "id": 2202,
                "name": "Domenico Berardi",
                "firstName": "Domenico",
                "lastName": null,
                "dateOfBirth": "1994-08-01",
                "countryOfBirth": "Italy",
                "nationality": "Italy",
                "position": "Attacker",
                "shirtNumber": null,
                "lastUpdated": "2020-09-07T21:10:46Z"
            },
            "team": {
                "id": 471,
                "name": "US Sassuolo Calcio",
                "shortName": "Sassuolo",
                "tla": "SAS",
                "crest": "https://crests.football-data.org/471.svg",
                "address": "Piazza Risorgimento, 47 Sassuolo 41049",
                "phone": "+39 (0536) 882645",
                "website": "http://www.sassuolocalcio.it",
                "email": "info@sassuolocalcio.it",
                "founded": 1920,
                "clubColors": "Green / Black",
                "venue": "Mapei Stadium - Città del Tricolore",
                "lastUpdated": "2021-04-12T13:07:30Z"
            },
            "goals": 17,
            "assists": 7,
            "penalties": 7
        },
        {
            "player": {
                "id": 1907,
                "name": "João Pedro Galvão",
                "firstName": "João Pedro Geraldino",
                "lastName": null,
                "dateOfBirth": "1992-03-09",
                "countryOfBirth": "Brazil",
                "nationality": "Italy",
                "position": "Midfielder",
                "shirtNumber": null,
                "lastUpdated": "2022-01-25T07:53:22Z"
            },
            "team": {
                "id": 104,
                "name": "Cagliari Calcio",
                "shortName": "Cagliari",
                "tla": "CAG",
                "crest": "https://crests.football-data.org/104.svg",
                "address": "Viale la Plaia 15 Cagliari 09123",
                "phone": "+39 (070) 604 201",
                "website": "http://www.cagliaricalcio.net",
                "email": "info@cagliaricalcio.net",
                "founded": 1920,
                "clubColors": "Red / Navy Blue / White",
                "venue": "Sardegna Arena",
                "lastUpdated": "2020-11-26T02:23:05Z"
            },
            "goals": 16,
            "assists": 3,
            "penalties": 4
        }
    ]
}
Available filters for Scorers
Filter name	Possible values	Sample
season

An integer, like [\d]{4}

/?season=2021

matchday

An integer, like [\d]{2}

/?matchday=23

Again you can combine the season and matchday filter. That way you can easily compare the current scorer list with former years.
Matches
You can use the Match Subresource to fetch a list of matches that are pre-filtered by the competition. Typically you use this in a regular interval to update basic information like dates and scores.

Click here to see a sample implementation with some layers of plumbing and transformation code in between.

curl -XGET 'https://api.football-data.org/v4/competitions/DED/matches?matchday=23' -H "X-Auth-Token: UR_TOKEN"
{
    "filters": {
        "season": "2021",
        "matchday": "23"
    },
    "resultSet": {
        "count": 9,
        "first": "2022-02-19",
        "last": "2022-04-16",
        "played": 9
    },
    "competition": {
        "id": 2003,
        "name": "Eredivisie",
        "code": "DED",
        "type": "LEAGUE",
        "emblem": "https://crests.football-data.org/ED.png"
    },
    "matches": [ ... ]
}
You see the applied filters on the very top: by default the current season is used, as of writing this, this is season 2021/22. And we explicitly defined to return only matches of matchday 23. The resultSet node gives the boundaries of the match list, a count and how many matches are in status FINISHED. Last but not least the list of match items follows.

Available filters for Match Subresource
Filter name	Possible values	Sample
season

An integer, like [\d]{4}

/?season=2021

matchday

An integer, like [\d]{2}

/?matchday=23

status

Status enum

/?status=FINISHED

dateFrom

A date in format yyyy-MM-dd

/?dateFrom=2022-01-01

dateTo

A date in format yyyy-MM-dd

/?dateTo=2022-01-10

stage

Stage enum, like defined at the very bottom

/?stage=QUARTER_FINALS

group

Group enum, like defined at the very bottom

/?group=GROUP_F

Teams
You can use the Team Subresource to fetch a list of teams that are pre-filtered by the a competition.

curl -XGET 'https://api.football-data.org/v4/competitions/BL1/teams' -H "X-Auth-Token: UR_TOKEN"
I omit the json response here as the structure is the very same as any team list shown here for instance.

Available filters for Team Subresource
Filter name	Possible values	Sample
season

An integer, like [\d]{4}

/?season=2021
This is api documentation now correct the error