api-elements
Advanced tools
This library provides an interface to API Elements in JavaScript.
$ npm install api-elements
const apiElements = require('api-elements');
const namespace = new apiElements.Namespace();
// Parsing a JSON Representation of API Elements tree
const parseResult = namespace.serialiser.deserialise({
element: 'parseResult',
content: []
});
console.log(parseResult);
// Creating API Elements directly
const parseResult = new namespace.elements.ParseResult();
console.log(parseResult);
An element that holds information about the result of parsing an input.
Get an array element of all child elements with the element name annotation. This property is read-only.
let annotations = parseResult.annotations;
Get the first child element with an element name of category and a class name of api. This property is read-only.
let api = parseResult.api;
Get an array element of all child elements with the element name annotation and class name error. This property is read-only.
let errors = parseResult.errors;
Get an array element of all child elements with the element name annotation and class name warning. This property is read-only.
let warnings = parseResult.warnings;
An element that annotates the input or parse result with additional information, such as warnings or errors. The content of the annotation contains the text:
console.log(`Warning: ${annotation.toValue()}`);
An optional warning, error, or other numerical code. This is a shortcut for accessing the element's code attribute.
// Show the code
console.log(annotation.code.toValue());
// Set the code
annotation.code = 123;
An element which maps a component of the parse result to the input via a given list of file locations and lengths.
The content of the source map is an array of locations.
You can use a convenience property to retrieve the sourceMap from any element.
// Print [[1, 2]]
console.log(element.sourceMapValue);
A grouping element to hold other elements.
Get an array element of all child elements with the element name copy. This property is read-only.
let copy = category.copy;
Get an array element of all child elements with the element name category and a class name dataStructures. This property is read-only.
let dataStructures = category.dataStructures;
Get an array element of all child elements with the element name resource. This property is read-only.
let resources = category.resources;
Get an array element of all child elements with the element name category and a class name resourceGroup. This property is read-only.
let groups = category.resourceGroups;
Get an array element of all child elements with a class name scenario. This property is read-only.
let scenarios = category.scenarios;
Get an array element of all child elements with the element name transition. This property is read-only.
let transitions = category.transitions;
Get an array element of all child elements with the element name category and a class name transitions. This property is read-only.
let groups = category.transitionGroups;
Get an array element of all child element with element name equal to one of the names given below. This property is read-only.
let schemes = category.authSchemes;
Get an array element of all child elements with the element name category and a class name authSchemes. This property is read-only.
let groups = category.authSchemeGroups;
An element that contains copy text used to describe elements in the API Description namespace. The element's content contains the text:
console.log(`Description: ${copy.toValue()}`);
The optional content-type of the element's content.
// Get the content-type
console.log(copy.contentType.toValue());
// Set the content-type
copy.contentType = 'text/markdown';
This element describes an auth scheme.
Get an array element of all child elements with the element name copy. This property is read-only.
let copy = scheme.copy;
Get an array element of all child elements with the element name transition. This property is read-only.
for (const transition of scheme.transitions) {
console.log(`Transition: ${transition.title}`);
}
Get an array element of all child elements with the element name member. This property is read-only.
for (const member of scheme.members) {
console.log(`Member: ${member.key}`)
}
This element describes a data structure.
Get an array element of all child elements with the element name copy. This property is read-only.
let copy = resource.copy;
The URL template of this resource.
// Get the href
console.log(`URL: ${resource.href.toValue()}`);
// Set the href
resource.href = '/foo/{id}';
The description of any variables present in the resource.href URL template.
// Get the href variables
console.log(resource.hrefVariables.keys());
// Set the href variables
resource.hrefVariables = {
id: 'foo'
}
Get an array element of all child elements with the element name transition. This property is read-only.
for (const transition of resource.transitions) {
console.log(`Transition: ${transition.title.toValue()}`);
}
Get the first child element with the element name dataStructure. This property is read-only.
console.log(resource.dataStructure.keys());
This element represents a resource transition.
Get an array element of all child elements with the element name copy. This property is read-only.
let copy = transition.copy;
Get the HTTP method of the transition, if there is one, by finding the first HTTP request and inspecting its method. This property is read-only.
let method = transition.method.toValue();
Defines a relationship to another resource or transition. Useful for hypermedia.
// Get the relation
console.log(`Relation: ${transition.relation.toValue()}`);
// Set the relation
transition.relation = '...';
Overrides the resources URL template with one specific to this transition.
// Get the href
console.log(`URL: ${transition.href.toValue()}`);
// Set the href
transition.href = '/foo/{id}';
Gets either the transition's href or the first transaction's request's href if it exists, otherwise returns null. This property is read-only.
console.log(`URL: ${transition.computedHref.toValue()}`);
The description of any variables present in the transition.href URL template.
// Get the href variables
console.log(transition.hrefVariables.keys());
// Set the href variables
transition.hrefVariables = {
id: 'foo'
}
The data structure describing the body payload for this transition.
// Get the data attributes
console.log(transition.data.toRefract());
// Set the data attributes
transition.data = minim.toElement({one: 1});
A list of content types supported by the transition.
// Get the content types
console.log(transition.contentTypes);
// Set the content types
transition.contentTypes = [
'application/json',
'application/yaml'
]
An array element of HTTP transaction elements. This property is read-only.
// Print out each transaction's HTTP request method
for (const transaction of transition.transactions) {
console.log(`${transaction.request.method}`);
}
This element represents an HTTP transaction.
The HTTP request component of this transaction. It returns an HttpRequest element if one has been defined. This property is read-only.
// Get the HTTP request
let request = transaction.request;
The HTTP response component of this transaction. It returns an HttpResponse element if one has been defined. This property is read-only.
// Get the HTTP response
let response = transaction.response;
It returns an array of elements derived from AuthScheme elements. This property is read-only.
let schemes = transaction.authSchemes;
This element represents an HTTP request.
Get an array element of all child elements with the element name copy. This property is read-only.
let copy = request.copy;
The HTTP method of this request, e.g. GET or POST.
// Get the HTTP method
console.log(`HTTP method: ${request.method.toValue()}`);
// Set the HTTP method
request.method = 'PUT';
Overrides the resources URL template with one specific to this request.
// Get the href
console.log(`URL: ${request.href.toValue()}`);
// Set the href
request.href = '/foo/{id}';
The HTTP headers for this request. See also the request.header(name) shortcut, which will get the values for a header by name.
// Get the headers element
let headers = request.headers;
// Set the headers element
request.headers = new HttpHeaders();
The computed content type of this request, either from a Content-Type header or from the message content. This property is read-only.
// Get the content type
console.log(`${request.contentType}`);
The request body data structure, if it exists. This property is read-only.
let data = request.dataStructure;
The request body content, if it exists. This property is read-only.
// Print out the body content as a string
console.log(`Body: ${request.messageBody}`);
The request body schema, if it exists. This property is read-only.
// Print out the body schema as a string
console.log(`Schema: ${request.messageBodySchema}`);
Get a case-insensitive header by name. This returns a list of strings, because headers can be defined multiple times.
// Get the content type header
let type = request.header('Content-Type')[0].toValue();
This element represents an HTTP response.
Get an array element of all child elements with the element name copy. This property is read-only.
let copy = response.copy;
The HTTP status code, e.g. 200 or 404.
// Get the status code
console.log(`Code: ${response.statusCode.toValue()}`);
// Set the status code
response.statusCode = 400;
The HTTP headers for this response. See also the response.header(name) shortcut, which will get the values for a header by name.
// Get the headers element
let headers = response.headers;
// Set the headers element
response.headers = new HttpHeaders();
The computed content type of this response, either from a Content-Type header or from the message content. This property is read-only.
// Get the content type
console.log(`${response.contentType.toValue()}`);
The response body data structure, if it exists. This property is read-only.
let data = response.dataStructure;
The response body content, if it exists. This property is read-only.
// Print out the body content as a string
console.log(`Body: ${response.messageBody}`);
The response body schema, if it exists. This property is read-only.
// Print out the body schema as a string
console.log(`Schema: ${response.messageBodySchema}`);
Get a case-insensitive header by name. This returns a list of strings, because headers can be defined multiple times.
// Get the content type header
let type = response.header('Content-Type')[0];
This element represents an HTTP message payload or schema asset.
The content type of this asset, e.g. application/json.
// Get the content type
console.log(`Type: ${asset.contentType.toValue()}`);
// Set the content type
asset.contentType = 'application/yaml';
A link to this asset.
// Get the link
console.log(`Location: ${asset.href.toValue()}`);
// Set the link
asset.href = '/path/to/asset'
This element represents a set of URI template variables.
This element represents a set of HTTP headers.
Return a filtered array element of headers with the given case-insensitive name. Each header is a member element where the key is the header name and the value is the header value.
let accept = headers.include('Accept');
Return a filtered array element of headers without the given case-insensitive name. Each header is a member element where the key is the header name and the value is the header value.
let filtered = headers.exclude('Content-Type');
This element represents the API Elements extensions element.
Gets the extension elements profile href. This property is read-only.
let profile = extension.profile.toValue();
FAQs
API Elements JavaScript
We found that api-elements demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
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