Passing DateTimeOffset as WebAPI query string

Passing DateTimeOffset as WebAPI query string

In a WebAPI application, you can pass a DateTimeOffset as a query string parameter by converting it to a string in a specific format that can be recognized by the WebAPI model binder.

Here's an example of how to pass a DateTimeOffset as a query string parameter in a WebAPI application:

  • Define a WebAPI endpoint that accepts a DateTimeOffset parameter in the query string:
[HttpGet("api/MyEndpoint")] public IActionResult MyEndpoint(DateTimeOffset myDateTimeOffsetParam) { // Do something with myDateTimeOffsetParam }
  • In the client code, convert the DateTimeOffset to a string in the yyyy-MM-ddTHH:mm:sszzz format:
DateTimeOffset myDateTimeOffset = DateTimeOffset.Now; string myDateTimeOffsetParamString = myDateTimeOffset.ToString("yyyy-MM-ddTHH:mm:sszzz");
  • Construct the URL for the WebAPI endpoint and include the myDateTimeOffsetParam query string parameter:
https://myapi.com/api/MyEndpoint?myDateTimeOffsetParam=2022-05-01T13:30:00-07:00

Note that the zzz format specifier in the ToString method represents the offset from Coordinated Universal Time (UTC), expressed as the number of hours and minutes. You can also use the zz specifier to represent the offset in hours only, or the z specifier to represent the offset as the letter "Z" for UTC or an offset in the format +/-hh:mm for other time zones.

When the WebAPI endpoint is called with the myDateTimeOffsetParam query string parameter, the WebAPI model binder will convert the string value to a DateTimeOffset object and pass it as a parameter to the MyEndpoint method.

Examples

  1. "WebAPI DateTimeOffset query string parameter"

    • Description: How to pass a DateTimeOffset as a query string parameter in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] DateTimeOffset timestamp) { // Use the timestamp in your logic return Ok($"Received timestamp: {timestamp}"); } }
    • Usage: /api/mycontroller/getitems?timestamp=2022-01-01T12:00:00+00:00

  2. "C# WebAPI DateTimeOffset query parameter format"

    • Description: Controlling the format of the DateTimeOffset in the query string parameter in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] [DateTimeOffsetFormat("yyyy-MM-ddTHH:mm:sszzz")] DateTimeOffset timestamp) { // Use the timestamp in your logic return Ok($"Received timestamp: {timestamp}"); } }
    • Usage: /api/mycontroller/getitems?timestamp=2022-01-01T12:00:00Z

  3. "WebAPI optional DateTimeOffset query parameter"

    • Description: Making a DateTimeOffset query parameter optional in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] DateTimeOffset? timestamp = null) { // Use the timestamp in your logic, or handle null if not provided if (timestamp.HasValue) { return Ok($"Received timestamp: {timestamp}"); } else { return Ok("No timestamp provided"); } } }
    • Usage: /api/mycontroller/getitems or /api/mycontroller/getitems?timestamp=2022-01-01T12:00:00Z

  4. "C# WebAPI DateTimeOffset query parameter validation"

    • Description: Validating a DateTimeOffset query parameter in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] [Required] DateTimeOffset timestamp) { // Use the timestamp in your logic return Ok($"Received timestamp: {timestamp}"); } }
    • Usage: /api/mycontroller/getitems?timestamp=2022-01-01T12:00:00Z

  5. "WebAPI DateTimeOffset range query parameter"

    • Description: Restricting the range of a DateTimeOffset query parameter in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] [Range(typeof(DateTimeOffset), "2022-01-01T00:00:00Z", "2022-12-31T23:59:59Z")] DateTimeOffset timestamp) { // Use the timestamp in your logic return Ok($"Received timestamp: {timestamp}"); } }
    • Usage: /api/mycontroller/getitems?timestamp=2022-06-15T12:00:00Z

  6. "C# WebAPI DateTimeOffset query parameter default value"

    • Description: Providing a default value for a DateTimeOffset query parameter in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] DateTimeOffset timestamp = default) { // Use the timestamp in your logic, or handle default if not provided if (timestamp != default) { return Ok($"Received timestamp: {timestamp}"); } else { return Ok("No timestamp provided, using default value"); } } }
    • Usage: /api/mycontroller/getitems or /api/mycontroller/getitems?timestamp=2022-01-01T12:00:00Z

  7. "WebAPI DateTimeOffset query parameter culture"

    • Description: Handling different DateTimeOffset formats based on culture in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] [DateTimeOffsetModelBinder] DateTimeOffset timestamp) { // Use the timestamp in your logic return Ok($"Received timestamp: {timestamp}"); } }
    • Usage: /api/mycontroller/getitems?timestamp=01/01/2022 12:00:00 +00:00

  8. "C# WebAPI DateTimeOffset query parameter serialization"

    • Description: Customizing serialization of DateTimeOffset query parameter in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] [JsonConverter(typeof(DateTimeOffsetConverter))] DateTimeOffset timestamp) { // Use the timestamp in your logic return Ok($"Received timestamp: {timestamp}"); } }
    • Usage: /api/mycontroller/getitems?timestamp=2022-01-01T12:00:00Z

  9. "C# WebAPI DateTimeOffset query parameter multiple formats"

    • Description: Handling multiple DateTimeOffset formats in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] [DateTimeOffsetMultipleFormats] DateTimeOffset timestamp) { // Use the timestamp in your logic return Ok($"Received timestamp: {timestamp}"); } }
    • Usage: /api/mycontroller/getitems?timestamp=2022-01-01T12:00:00Z or /api/mycontroller/getitems?timestamp=01/01/2022 12:00:00 +00:00

  10. "WebAPI DateTimeOffset query parameter URL encoding"

    • Description: Dealing with URL-encoded DateTimeOffset query parameters in a WebAPI endpoint.
    • Code:
      // WebAPI Controller public class MyController : ApiController { public IHttpActionResult GetItems([FromUri] [ModelBinder(typeof(UriDataModelBinder))] DateTimeOffset timestamp) { // Use the timestamp in your logic return Ok($"Received timestamp: {timestamp}"); } }
    • Usage: /api/mycontroller/getitems?timestamp=2022-01-01%2012:00:00%20%2B00:00

More Tags

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