The header is there so your app can detect what data was returned and how it should handle it. RFC 6902 JSON Patch April 2013 The "from" location MUST NOT be a proper prefix of the "path" location; i.e., a location cannot be moved into one of its children. Cross-site request forgery. Naive deployments of JSONP are subject to cross-site request forgery (CSRF or XSRF) attacks. The stream_context_create http content field contains the http body for the request. A string begins and ends with quotation marks. 0. If you'd like request to return a Promise instead, you can use an alternative interface wrapper for request.These wrappers can be useful if you prefer to work with Promises, or if you'd like to use async/await in ES2017.. Several alternative interfaces are provided by the request team, including: Re-subscribing to the result of an HttpClient method call has the effect of reissuing the HTTP request. While most decoders will accept these values as valid JSON, some may not, as the specification is ambiguous on this point. Like the reference JSON encoder, json_encode() will generate JSON that is a simple value (that is, neither an object nor an array) if given a string, int, float or bool as an input value. A JSON Schema resource is a schema which is canonically [] identified by an absolute URI [].Schema resources MAY also be identified by URIs, including URIs with fragments, if the resulting secondary resource (as defined by section 3.5 of RFC 3986 []) is identical to the primary resource. Like the reference JSON encoder, json_encode() will generate JSON that is a simple value (that is, neither an object nor an array) if given a string, int, float or bool as an input value. While most decoders will accept these values as valid JSON, some may not, as the specification is ambiguous on this point. The @Body annotation defines a single request body.. interface Foo { @POST("/jayson") FooResponse postJson(@Body FooRequest body); } Since Retrofit uses Gson by default, the FooRequest instances will be serialized as JSON as the sole body of the request.. public class FooRequest { final String foo; final String bar; FooRequest(String foo, String bar) { this.foo = foo; Because the HTML