Can REST only use JSON?
Long answer: no, not yet. One of the key constraints on REST is that a RESTful API must use hypermedia formats (the HATEOAS constraint). Unfortunately, JSON is not a hypermedia format. Although JSON does’t have inherent hypermedia support, some standardisation is on its way to change that.
Is API a JSON file?
APIs. json is a machine readable specification that API providers can use to describe their API operations, similar to how web sites are described using sitemap. xml.
Is Empty file valid JSON?
One of the changes in RFC 7159 is that a JSON text is not defined as being an object or an array anymore but rather as being a serialized value. This means that with RFC 7159, “null” (as well as “true” and “false”) becomes a valid JSON text. So the JSON text serialized value of a null object is indeed “null”.
How to create a nullable INT in dB?
// an int can never be null, so it will be created as NOT NULL in db public int someintfield { get; set; } // to have a nullable int, you need to declare it as an int? // or as a System.Nullable public int? somenullableintfield { get; set; } public System.Nullable someothernullableintfield { get; set; }
When do you use null in a string?
You’re using some type of heap initialization on startup and null is a possible string value passed back upon failure to allocate space for a string. Rationale: null in this case is actually used to indicate two different types of values. The first may be a default value which the user of your interface may want to set.
How to make int types allow nulls in the database?
To make int types allow NULLs in the database, they must be declared as nullable ints in the model:
When to use null as a default value?
Answer: null is probably not appropriate Rationale: null in this case is actually used to indicate two different types of values. The first may be a default value which the user of your interface may want to set. Unfortunately, the second value is a flag to indicate that your system is not functioning correctly.