Helper Classes for using the Star Wars Galaxy of Heroes API provided by www.swgoh.help and a simple example of how to use it. The API requires a login but you can get one by joining their discord server: https://discord.gg/6SbH8kE The helper classes and AllyCode classes are files copied verbatim from another project (that's why the odd namespace…

SwgohHelpApi.cs

using DareWare.SWGoH.Core;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace DareWare.SWGoH.Data.WebServices.SwgohHelp
{
    #region WebService Data Classes

    /////////////////
    public class PlayerInfo
    {
        public string name { get; set; }
        public int level { get; set; }
        public int allyCode { get; set; }
        public string guildName { get; set; }
        public int gpFull { get; set; }
        public int gpChar { get; set; }
        public int gpShip { get; set; }
        public Roster[] roster { get; set; }
        public Arena arena { get; set; }
        public long updated { get; set; }

        public DateTimeOffset Updated => DateTimeOffset.FromUnixTimeMilliseconds( this.updated );
    }

    public class Arena
    {
        [JsonProperty( "char" )]
        public Ranking _char { get; set; }
        public Ranking ship { get; set; }
    }

    public class Ranking
    {
        public int rank { get; set; }
        public Squad[] squad { get; set; }
    }

    public class Squad
    {
        public string id { get; set; }
        public string name { get; set; }
        public string type { get; set; }
    }

    public class Roster
    {
        public string id { get; set; }
        public string defId { get; set; }
        public string name { get; set; }
        public string type { get; set; }
        public int rarity { get; set; }
        public int level { get; set; }
        public float gp { get; set; }
        public int xp { get; set; }
        public int gear { get; set; }
        public Equipped[] equipped { get; set; }
        public Skill[] skills { get; set; }
        public Crew[] crew { get; set; }
        public Mod[] mods { get; set; }
    }

    public class Equipped
    {
        public string equipmentId { get; set; }
        public int slot { get; set; }
    }

    public class Skill
    {
        public int tier { get; set; }
        public string name { get; set; }
        public bool isZeta { get; set; }
        public string type { get; set; }
    }

    public class Crew
    {
        public string unitId { get; set; }
        public int slot { get; set; }
        public SkillReference[] skillReferenceList { get; set; }
        public int cp { get; set; }
        public float gp { get; set; }
    }

    public class SkillReference
    {
        public string skillId { get; set; }
        public int requiredTier { get; set; }
        public int requiredRarity { get; set; }
    }

    public class Mod
    {
        public string id { get; set; }
        public string slot { get; set; }
        public int setId { get; set; }
        public string set { get; set; }
        public int level { get; set; }
        public int pips { get; set; }
        public string primaryBonusType { get; set; }
        public string primaryBonusValue { get; set; }
        public string secondaryType_1 { get; set; }
        public string secondaryValue_1 { get; set; }
        public string secondaryType_2 { get; set; }
        public string secondaryValue_2 { get; set; }
        public string secondaryType_3 { get; set; }
        public string secondaryValue_3 { get; set; }
        public string secondaryType_4 { get; set; }
        public string secondaryValue_4 { get; set; }
    }
    /////////////////

    public class Battle
    {
        public string id { get; set; }
        public string name { get; set; }
        public string desc { get; set; }
        public string type { get; set; }
        public Map[] mapList { get; set; }
    }

    public class Map
    {
        public BattleInfo[] easy { get; set; }
        public BattleInfo[] hard { get; set; }
    }

    public class BattleInfo
    {
        public string id { get; set; }
        public string desc { get; set; }
        public object[] rewards { get; set; }
    }

    public class Reward
    {
        public string id { get; set; }
        public string name { get; set; }
        public object desc { get; set; }
    }

    /////////////////

    public class Event
    {
        public string id { get; set; }
        public int priority { get; set; }
        public string name { get; set; }
        public string summary { get; set; }
        public string desc { get; set; }
        public int type { get; set; }
        public int status { get; set; }
        public Schedule[] schedule { get; set; }
    }

    public class Schedule
    {
        public long start { get; set; }
        public long end { get; set; }
        public long show { get; set; }
        public long hide { get; set; }

        public DateTimeOffset Start => DateTimeOffset.FromUnixTimeMilliseconds( this.start );
        public DateTimeOffset End => DateTimeOffset.FromUnixTimeMilliseconds( this.end );
        public DateTimeOffset Show => DateTimeOffset.FromUnixTimeMilliseconds( this.show );
        public DateTimeOffset Hide => DateTimeOffset.FromUnixTimeMilliseconds( this.hide );
    }
    /////////////////

    public class Gear
    {
        public string id { get; set; }
        public string name { get; set; }
        public EquipmentStat equipmentStat { get; set; }
        public MissionList[] lookupMissionList { get; set; }
        public string mark { get; set; }
        public MissionList[] raidLookupList { get; set; }
        public object[] actionLinkLookupList { get; set; }
    }

    public class EquipmentStat
    {
        public StatList[] statList { get; set; }
    }

    public class StatList
    {
        public int unitStatId { get; set; }
        public int statValueDecimal { get; set; }
        public decimal unscaledDecimalValue { get; set; }
    }

    public class MissionList
    {
        public MissionIdentifier missionIdentifier { get; set; }
        [JsonProperty( "event" )] public bool _event { get; set; }
    }

    public class MissionIdentifier
    {
        public string campaignId { get; set; }
        public string campaignMapId { get; set; }
        public string campaignNodeId { get; set; }
        public int campaignNodeDifficulty { get; set; }
        public string campaignMissionId { get; set; }
    }
    /////////////////

    public class ModSetInfo
    {
        public string name { get; set; }
        public int count { get; set; }
        public UnitStat bonus { get; set; }
    }

    public class UnitStat
    {
        public int unitStatId { get; set; }
        public int statValueDecimal { get; set; }
        public decimal unscaledDecimalValue { get; set; }
    }

    /////////////////

    public class SkillInfo
    {
        public string name { get; set; }
        public bool isZeta { get; set; }
    }

    /////////////////

    public class TerritoryBattleInfo
    {
        public string id { get; set; }
        public string name { get; set; }
        public string description { get; set; }
        public int roundCount { get; set; }
        public ConflictZone[] conflictZoneDefinitionList { get; set; }
        public ZoneDefinitionList[] strikeZoneDefinitionList { get; set; }
        public ReconZoneDefinition[] reconZoneDefinitionList { get; set; }
        public Description[] dynamicDescriptionList { get; set; }
        public ZoneDefinitionList[] covertZoneDefinitionList { get; set; }
        public StatCategory[] statCategoryList { get; set; }
    }

    public class ConflictZone
    {
        public int combatType { get; set; }
        public VictoryPointsRewards[] victoryPointRewardsList { get; set; }
        public ZoneDefinition zoneDefinition { get; set; }
    }

    public class ZoneDefinition
    {
        public string zoneId { get; set; }
        public string name { get; set; }
        public string description { get; set; }
        public string linkedConflictId { get; set; }
    }

    public class VictoryPointsRewards
    {
        public int galacticScoreRequirement { get; set; }
    }

    public class ZoneDefinitionList
    {
        public ZoneDefinition zoneDefinition { get; set; }
    }

    public class ReconZoneDefinition
    {
        public ZoneDefinition zoneDefinition { get; set; }
        public string goalDesc { get; set; }
        public int unitRarity { get; set; }
        public string rewardDesc { get; set; }
        public string subTitle { get; set; }
    }

    public class Description
    {
        public string text { get; set; }
    }

    public class StatCategory
    {
        public string id { get; set; }
        public string name { get; set; }
    }
    /////////////////

    public class UnitInfo
    {
        public string name { get; set; }
        public UnitStat[] baseStats { get; set; }
        public int alignment { get; set; }
        public string type { get; set; }
        public Crew[] crew { get; set; }
        public string[] tags { get; set; }
    }

    /////////////////


    public class PlayerModList
    {
        public string name { get; set; }
        public int allyCode { get; set; }
        public long updated { get; set; }
        public PlayerMod[] mods { get; set; }

        public DateTimeOffset Updated => DateTimeOffset.FromUnixTimeMilliseconds( this.updated );
    }

    public class PlayerMod
    {
        public string slot { get; set; }
        public int setId { get; set; }
        public string set { get; set; }
        public int level { get; set; }
        public int pips { get; set; }
        public string primaryBonusType { get; set; }
        public string primaryBonusValue { get; set; }
        public string secondaryType_1 { get; set; }
        public string secondaryValue_1 { get; set; }
        public string secondaryType_2 { get; set; }
        public string secondaryValue_2 { get; set; }
        public string secondaryType_3 { get; set; }
        public string secondaryValue_3 { get; set; }
        public string secondaryType_4 { get; set; }
        public string secondaryValue_4 { get; set; }
        public string characterName { get; set; }
        public string mod_uid { get; set; }
    }

    /////////////////

    public class GuildInfo
    {
        public string name { get; set; }
        public string desc { get; set; }
        public int members { get; set; }
        public int required { get; set; }
        public string bannerColor { get; set; }
        public string bannerLogo { get; set; }
        public string message { get; set; }
        public int gp { get; set; }
        public Raid raid { get; set; }
        public long updated { get; set; }

        public DateTimeOffset Updated => DateTimeOffset.FromUnixTimeMilliseconds( this.updated );
    }

    public class Raid
    {
        public string rancor { get; set; }
        public string aat { get; set; }
    }

    #endregion

    #region API Helper Class

    public class ApiHelper
    {
        private class LoginResponse
        {
            public string token_type { get; set; }
            public string access_token { get; set; }
            public int expires_in { get; set; }
        }

        public string Username { get; set; }
        public string Password { set; private get; }

        private string AccessToken { get; set; }

        public ApiHelper()
        {
        }

        public void Login( string username, string password )
        {
            this.Username = username;
            this.Password = password;
            Login();
        }

        public void Login()
        {
            LoginResponse token = null;

            var web = new WebClient();
            var response = web.UploadValues(URL_BASE + URL_SIGNIN, HTTP_METHOD, GetLoginVals());
            var json = web.Encoding.GetString(response);
            token = JsonConvert.DeserializeObject<LoginResponse>( json );

            if ( token != null )
            {
                this.AccessToken = token.access_token;
            }
            else
            {
                throw new ArgumentException( "Failed to get AccessToken" );
            }
        }

        public PlayerInfo GetPlayer( AllyCode allyCode )
        {
            ThrowInvalidAllyCode( allyCode );
            return Invoke<PlayerInfo>( URL_PLAYER, allyCode );
        }

        public PlayerModList GetPlayerMods( AllyCode allyCode )
        {
            ThrowInvalidAllyCode( allyCode );
            return Invoke<PlayerModList>( URL_PLAYER, allyCode, PLAYER_MODS );
        }

        public Battle[] GetBattles() => Invoke<Battle[]>( URL_DATA, DATA_BATTLES );
        public Event[] GetEvents() => Invoke<Event[]>( URL_DATA, DATA_EVENTS );
        public IDictionary<string, Gear> GetGear() => Invoke<IDictionary<string, Gear>>( URL_DATA, DATA_GEAR );
        public ModSetInfo[] GetModSets() => Invoke<ModSetInfo[]>( URL_DATA, DATA_MODSETS );
        public IDictionary<string, SkillInfo> GetSkills() => Invoke<IDictionary<string, SkillInfo>>( URL_DATA, DATA_SKILLS );
        public TerritoryBattleInfo[] GetTBs() => Invoke<TerritoryBattleInfo[]>( URL_DATA, DATA_TB );
        public IDictionary<string, UnitInfo> GetUnits() => Invoke<IDictionary<string, UnitInfo>>( URL_DATA, DATA_UNITS );

        public GuildInfo GetGuild( AllyCode allyCode )
        {
            ThrowInvalidAllyCode( allyCode );
            return Invoke<GuildInfo>( URL_GUILD, allyCode, GUILD_DETAILS );
        }

        private T Invoke<T>( params string[] parts )
        {
            return JsonConvert.DeserializeObject<T>( Invoke( parts ) );
        }

        private string Invoke( params string[] parts )
        {
            string url = String.Join("/", parts.Where(s => !String.IsNullOrEmpty(s)));

            if ( String.IsNullOrEmpty( url ) )
            {
                throw new ArgumentNullException( nameof( parts ) );
            }
            if ( String.IsNullOrEmpty( this.AccessToken ) )
            {
                Login();
            }
            var web = new WebClient();
            web.Headers.Add( "Authorization", "Bearer " + this.AccessToken );
            var result = web.UploadString(URL_BASE + url, HTTP_METHOD, "");

            return result;
        }

        private NameValueCollection GetLoginVals() => GetLoginVals( this.Username, this.Password );

        static private NameValueCollection GetLoginVals( string username, string password )
        {
            if ( String.IsNullOrEmpty( username ) )
            {
                throw new ArgumentNullException( nameof( username ) );
            }
            if ( String.IsNullOrEmpty( password ) )
            {
                throw new ArgumentNullException( nameof( password ) );
            }

            return new NameValueCollection
            {
                {"username", username},
                {"password", password},
                {"grant_type", "password"},
                {"client_id", "123"},
                {"client_secret", "ABC"}
            };
        }

        static private void ThrowInvalidAllyCode( AllyCode ac ) { if ( !ac ) throw new ArgumentException( "AllyCode" ); }

        static private readonly string URL_BASE = "https://api.swgoh.help";
        static private readonly string URL_SIGNIN = "/auth/signin";
        static private readonly string URL_DATA = "/swgoh/data";
        static private readonly string URL_PLAYER = "/swgoh/player";
        static private readonly string URL_GUILD = "/swgoh/guild";
        static private readonly string HTTP_METHOD = "POST";
        static private readonly string DATA_BATTLES = "battles";
        static private readonly string DATA_EVENTS = "events";
        static private readonly string DATA_UNITS = "units";
        static private readonly string DATA_ARENA = "arena";
        static private readonly string DATA_GEAR = "gear";
        static private readonly string DATA_MODSETS = "mod-sets";
        static private readonly string DATA_MODSTATS = "mod-stats";
        static private readonly string DATA_SKILLS = "skills";
        static private readonly string DATA_SKILLTYPES = "skill-types";
        static private readonly string DATA_TB = "tb";
        //static private readonly string DATA_ZETAS = "zetas";
        static private readonly string DATA_ZETA_ABILITIIES = "zeta-abilities";
        static private readonly string DATA_ZETA_RECOMMENDATIONS = "zeta-recommendations";
        static private readonly string PLAYER_MODS = "mods";
        static private readonly string PLAYER_ZETAS = "zetas";
        static private readonly string GUILD_DETAILS = "details";
    }
    #endregion


}

SwgohHelpApi.Program.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace SwgohHelpApi
{
    using ApiHelper = DareWare.SWGoH.Data.WebServices.SwgohHelp.ApiHelper;

    class Program
    {
        private static string ExeName => Assembly.GetEntryAssembly().Location.Split( Path.DirectorySeparatorChar ).Last();

        static void Main( string[] args )
        {
            if ( args.Length < 2 )
            {
                Console.WriteLine( "Usage: " + ExeName + " <ApiUserName> <ApiPassword> [<AllyCode>]" );
                return;
            }

            var api = new ApiHelper()
            {
                Username = args[0],
                Password = args[1]
            };

            var events = api.GetEvents();
            var heists = events.Where( e => e.id.Contains("CREDIT_HEIST") );
            if ( heists.Any() )
            {
                Console.WriteLine( "The next credit heist starts at " + heists.First().schedule.First().Start.ToLocalTime() );
            }
            else
            {
                Console.WriteLine( "No credit heists coming up" );
            }

            if ( args.Length >= 3 )
            {
                var me = api.GetPlayer( args[2] );
                Console.WriteLine( $"As of {me.Updated.ToLocalTime()}, {me.name} is #{me.arena._char.rank} in Squad Arena and #{me.arena.ship.rank} in Fleet Arena" );
            }

            Console.WriteLine( "Please press the any key to continue..." );
            Console.ReadKey();
        }
    }
}

SwgohHelpApiAllyCode.cs

using System;

namespace DareWare.SWGoH.Core
{
    public struct AllyCode : IEquatable<AllyCode>, IComparable<AllyCode>
    {
        #region Constructors
        public AllyCode( uint ac ) : this( ac, true ) { }
        public AllyCode( string ac ) : this( uint.Parse( ac ), true ) { }
        public AllyCode( uint ac, bool validate )
        {
            if ( validate ) ThrowInvalid( ac );
            _value = ac;
        }
        #endregion

        #region The Property / Field
        private readonly uint _value;
        public uint Value => _value;
        #endregion

        #region Methods
        public bool IsValid() => IsValid( this.Value );
        #endregion

        #region Object Overrides
        public override string ToString() => this.Value.ToString().Insert( 6, "-" ).Insert( 3, "-" );
        public override bool Equals( object obj ) => ( obj is AllyCode ac ) ? Equals( ac ) : base.Equals( obj );
        public override int GetHashCode() => this.Value.GetHashCode();
        #endregion

        #region IEquatable
        public bool Equals( AllyCode ac ) => this.Value.Equals( ac.Value );
        #endregion

        #region IComparable
        public int CompareTo( AllyCode ac ) => this.Value.CompareTo( ac.Value );
        #endregion

        #region Conversation Operators
        public static implicit operator bool( AllyCode ac ) => ac.IsValid();
        public static implicit operator uint( AllyCode ac ) => ac.Value;
        public static implicit operator string( AllyCode ac ) => ac.Value.ToString();
        public static implicit operator AllyCode( string s ) => new AllyCode( s );
        public static implicit operator AllyCode( uint n ) => new AllyCode( n );
        #endregion

        #region Comparison Operators
        public static bool operator ==( AllyCode left, AllyCode right ) => left.Equals( right );
        public static bool operator !=( AllyCode left, AllyCode right ) => !left.Equals( right );
        public static bool operator >( AllyCode left, AllyCode right ) => left.CompareTo( right ) >= 1;
        public static bool operator <( AllyCode left, AllyCode right ) => left.CompareTo( right ) <= -1;
        public static bool operator >=( AllyCode left, AllyCode right ) => left.CompareTo( right ) >= 0;
        public static bool operator <=( AllyCode left, AllyCode right ) => left.CompareTo( right ) <= 0;
        #endregion

        #region Public Static Values
        public static AllyCode None { get; } = new AllyCode( 0, false );
        public static AllyCode MaxValue { get; } = new AllyCode( _max, false );
        public static AllyCode MinValue { get; } = new AllyCode( _min, false );
        #endregion

        #region Private Static Helpers
        private static void ThrowInvalid( uint ac ) { if ( !IsValid( ac ) ) throw new ArgumentOutOfRangeException(); }
        private static bool IsValid( uint ac ) => ( ( ac >= _min ) && ( ac <= _max ) );
        private static uint _max = 999_999_999U;
        private static uint _min = 100_000_000U;
        #endregion
    }
}