Class ResultValidationExtensions

Namespace

REslava.Result.Extensions

Assembly

REslava.Result.dll

Extension methods for validation operations on Result types.

public static class ResultValidationExtensions

Inheritance

object

ResultValidationExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

EnsureAsync<T>(Result<T>, Func<T, Task<bool>>, Error, CancellationToken)

Ensures that an async condition is met, otherwise returns a failed result.

var user = new User { Id = 123, Email = "test@example.com" };
var result = Result<User>.Ok(user);
var validated = await result
.EnsureAsync(
async u => await _db.UserExistsAsync(u.Id),
new Error("User not found in database"));

public static Task<Result<T>> EnsureAsync<T>(this Result<T> result, Func<T, Task<bool>> predicate, Error error, CancellationToken cancellationToken = default)

Parameters

result Result<T>

predicate Func<T, Task<bool>>

error Error

cancellationToken CancellationToken

Returns

Task<Result<T>>

Type Parameters

T

EnsureAsync<T>(Result<T>, Func<T, Task<bool>>, string, CancellationToken)

Ensures that an async condition is met, otherwise returns a failed result.

public static Task<Result<T>> EnsureAsync<T>(this Result<T> result, Func<T, Task<bool>> predicate, string errorMessage, CancellationToken cancellationToken = default)

Parameters

result Result<T>

predicate Func<T, Task<bool>>

errorMessage string

cancellationToken CancellationToken

Returns

Task<Result<T>>

Type Parameters

T

EnsureAsync<T>(Task<Result<T>>, Func<T, bool>, Error, CancellationToken)

Awaits the result then ensures that a condition is met, otherwise returns a failed result.

var result = await GetUserAsync(userId)
    .EnsureAsync(
        user => user.IsActive,
        new Error("User is not active"));

public static Task<Result<T>> EnsureAsync<T>(this Task<Result<T>> resultTask, Func<T, bool> predicate, Error error, CancellationToken cancellationToken = default)

Parameters

resultTask Task<Result<T>>

predicate Func<T, bool>

error Error

cancellationToken CancellationToken

Returns

Task<Result<T>>

Type Parameters

T

EnsureAsync<T>(Task<Result<T>>, Func<T, bool>, string, CancellationToken)

Awaits the result then ensures that a condition is met, otherwise returns a failed result.

public static Task<Result<T>> EnsureAsync<T>(this Task<Result<T>> resultTask, Func<T, bool> predicate, string errorMessage, CancellationToken cancellationToken = default)

Parameters

resultTask Task<Result<T>>

predicate Func<T, bool>

errorMessage string

cancellationToken CancellationToken

Returns

Task<Result<T>>

Type Parameters

T

EnsureAsync<T>(Task<Result<T>>, Func<T, Task<bool>>, Error, CancellationToken)

Awaits the result then ensures that an async condition is met, otherwise returns a failed result.

var result = await GetUserAsync(userId)
    .EnsureAsync(
        async user => await _userService.IsUserActiveAsync(user.Id),
        new Error("User is not active"));

public static Task<Result<T>> EnsureAsync<T>(this Task<Result<T>> resultTask, Func<T, Task<bool>> predicate, Error error, CancellationToken cancellationToken = default)

Parameters

resultTask Task<Result<T>>

predicate Func<T, Task<bool>>

error Error

cancellationToken CancellationToken

Returns

Task<Result<T>>

Type Parameters

T

EnsureAsync<T>(Task<Result<T>>, Func<T, Task<bool>>, string, CancellationToken)

Awaits the result then ensures that an async condition is met, otherwise returns a failed result.

public static Task<Result<T>> EnsureAsync<T>(this Task<Result<T>> resultTask, Func<T, Task<bool>> predicate, string errorMessage, CancellationToken cancellationToken = default)

Parameters

resultTask Task<Result<T>>

predicate Func<T, Task<bool>>

errorMessage string

cancellationToken CancellationToken

Returns

Task<Result<T>>

Type Parameters

T

EnsureNotNullAsync<T>(Task<Result<T>>, string, CancellationToken)

Awaits the result then ensures the value is not null.

public static Task<Result<T>> EnsureNotNullAsync<T>(this Task<Result<T>> resultTask, string errorMessage, CancellationToken cancellationToken = default) where T : class

Parameters

resultTask Task<Result<T>>

errorMessage string

cancellationToken CancellationToken

Returns

Task<Result<T>>

Type Parameters

T

EnsureNotNull<T>(Result<T>, string)

Ensures the value is not null.

public static Result<T> EnsureNotNull<T>(this Result<T> result, string errorMessage) where T : class

Parameters

result Result<T>

errorMessage string

Returns

Result<T>

Type Parameters

T

Ensure<T>(Result<T>, Func<T, bool>, Error)

Ensures that a condition is met, otherwise returns a failed result.

public static Result<T> Ensure<T>(this Result<T> result, Func<T, bool> predicate, Error error)

Parameters

result Result<T>

predicate Func<T, bool>

error Error

Returns

Result<T>

Type Parameters

T

Ensure<T>(Result<T>, Func<T, bool>, string)

Ensures that a condition is met, otherwise returns a failed result.

public static Result<T> Ensure<T>(this Result<T> result, Func<T, bool> predicate, string errorMessage)

Parameters

result Result<T>

predicate Func<T, bool>

errorMessage string

Returns

Result<T>

Type Parameters

T

Ensure<T>(Result<T>, params (Func<T, bool> predicate, Error error)[])

Ensures that multiple conditions are met, otherwise returns a failed result.

public static Result<T> Ensure<T>(this Result<T> result, params (Func<T, bool> predicate, Error error)[] validations)

Parameters

result Result<T>

validations (Func<T, bool> predicate, Error error)[]

Returns

Result<T>

Type Parameters

T