@microsoft/microsoft-graph-client
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Microsoft Graph Client Library
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text/typescript
/**
* -------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All Rights Reserved. Licensed under the MIT License.
* See License in the project root for license information.
* -------------------------------------------------------------------------------------------
*/
/**
* @module GraphRequest
*/
import { GraphClientError } from "./GraphClientError";
import { GraphError } from "./GraphError";
import { GraphErrorHandler } from "./GraphErrorHandler";
import { oDataQueryNames, serializeContent, urlJoin } from "./GraphRequestUtil";
import { GraphResponseHandler } from "./GraphResponseHandler";
import { HTTPClient } from "./HTTPClient";
import { ClientOptions } from "./IClientOptions";
import { Context } from "./IContext";
import { FetchOptions } from "./IFetchOptions";
import { GraphRequestCallback } from "./IGraphRequestCallback";
import { MiddlewareControl } from "./middleware/MiddlewareControl";
import { MiddlewareOptions } from "./middleware/options/IMiddlewareOptions";
import { RequestMethod } from "./RequestMethod";
import { ResponseType } from "./ResponseType";
/**
* @interface
* Signature to representing key value pairs
* @property {[key: string] : string | number} - The Key value pair
*/
interface KeyValuePairObjectStringNumber {
[key: string]: string | number;
}
/**
* @interface
* Signature to define URL components
* @template http://graph.microsoft.com/VERSION/PATH?QUERYSTRING&OTHER_QUERY_PARAMS
*
* @property {string} host - The host to which the request needs to be made
* @property {string} version - Version of the graph endpoint
* @property {string} [path] - The path of the resource request
* @property {KeyValuePairObjectStringNumber} oDataQueryParams - The oData Query Params
* @property {KeyValuePairObjectStringNumber} otherURLQueryParams - The other query params for a request
* @property {string[]} otherURLQueryOptions - The non key-value query parameters. Example- '/me?$whatif'
*/
export interface URLComponents {
host: string;
version: string;
path?: string;
oDataQueryParams: KeyValuePairObjectStringNumber;
otherURLQueryParams: KeyValuePairObjectStringNumber;
otherURLQueryOptions?: string[];
}
/**
* @class
* A Class representing GraphRequest
*/
export class GraphRequest {
/**
* @private
* A member variable to hold HTTPClient instance
*/
private httpClient: HTTPClient;
/**
* @private
* A member variable to hold client options
*/
private config: ClientOptions;
/**
* @private
* A member to hold URL Components data
*/
private urlComponents: URLComponents;
/**
* @private
* A member to hold custom header options for a request
*/
private _headers: HeadersInit;
/**
* @private
* A member to hold custom options for a request
*/
private _options: FetchOptions;
/**
* @private
* A member to hold the array of middleware options for a request
*/
private _middlewareOptions: MiddlewareOptions[];
/**
* @private
* A member to hold custom response type for a request
*/
private _responseType: ResponseType;
/**
* @public
* @constructor
* Creates an instance of GraphRequest
* @param {HTTPClient} httpClient - The HTTPClient instance
* @param {ClientOptions} config - The options for making request
* @param {string} path - A path string
*/
public constructor(httpClient: HTTPClient, config: ClientOptions, path: string) {
this.httpClient = httpClient;
this.config = config;
this.urlComponents = {
host: this.config.baseUrl,
version: this.config.defaultVersion,
oDataQueryParams: {},
otherURLQueryParams: {},
otherURLQueryOptions: [],
};
this._headers = {};
this._options = {};
this._middlewareOptions = [];
this.parsePath(path);
}
/**
* @private
* Parses the path string and creates URLComponents out of it
* @param {string} path - The request path string
* @returns Nothing
*/
private parsePath = (path: string): void => {
// Strips out the base of the url if they passed in
if (path.indexOf("https://") !== -1) {
path = path.replace("https://", "");
// Find where the host ends
const endOfHostStrPos = path.indexOf("/");
if (endOfHostStrPos !== -1) {
// Parse out the host
this.urlComponents.host = "https://" + path.substring(0, endOfHostStrPos);
// Strip the host from path
path = path.substring(endOfHostStrPos + 1, path.length);
}
// Remove the following version
const endOfVersionStrPos = path.indexOf("/");
if (endOfVersionStrPos !== -1) {
// Parse out the version
this.urlComponents.version = path.substring(0, endOfVersionStrPos);
// Strip version from path
path = path.substring(endOfVersionStrPos + 1, path.length);
}
}
// Strip out any leading "/"
if (path.charAt(0) === "/") {
path = path.substr(1);
}
const queryStrPos = path.indexOf("?");
if (queryStrPos === -1) {
// No query string
this.urlComponents.path = path;
} else {
this.urlComponents.path = path.substr(0, queryStrPos);
// Capture query string into oDataQueryParams and otherURLQueryParams
const queryParams = path.substring(queryStrPos + 1, path.length).split("&");
for (const queryParam of queryParams) {
this.parseQueryParameter(queryParam);
}
}
};
/**
* @private
* Adds the query parameter as comma separated values
* @param {string} propertyName - The name of a property
* @param {string|string[]} propertyValue - The vale of a property
* @param {IArguments} additionalProperties - The additional properties
* @returns Nothing
*/
private addCsvQueryParameter(propertyName: string, propertyValue: string | string[], additionalProperties: IArguments): void {
// If there are already $propertyName value there, append a ","
this.urlComponents.oDataQueryParams[propertyName] = this.urlComponents.oDataQueryParams[propertyName] ? this.urlComponents.oDataQueryParams[propertyName] + "," : "";
let allValues: string[] = [];
if (additionalProperties.length > 1 && typeof propertyValue === "string") {
allValues = Array.prototype.slice.call(additionalProperties);
} else if (typeof propertyValue === "string") {
allValues.push(propertyValue);
} else {
allValues = allValues.concat(propertyValue);
}
this.urlComponents.oDataQueryParams[propertyName] += allValues.join(",");
}
/**
* @private
* Builds the full url from the URLComponents to make a request
* @returns The URL string that is qualified to make a request to graph endpoint
*/
private buildFullUrl(): string {
const url = urlJoin([this.urlComponents.host, this.urlComponents.version, this.urlComponents.path]) + this.createQueryString();
if (this.config.debugLogging) {
console.log(url);
}
return url;
}
/**
* @private
* Builds the query string from the URLComponents
* @returns The Constructed query string
*/
private createQueryString(): string {
// Combining query params from oDataQueryParams and otherURLQueryParams
const urlComponents = this.urlComponents;
const query: string[] = [];
if (Object.keys(urlComponents.oDataQueryParams).length !== 0) {
for (const property in urlComponents.oDataQueryParams) {
if (Object.prototype.hasOwnProperty.call(urlComponents.oDataQueryParams, property)) {
query.push(property + "=" + urlComponents.oDataQueryParams[property]);
}
}
}
if (Object.keys(urlComponents.otherURLQueryParams).length !== 0) {
for (const property in urlComponents.otherURLQueryParams) {
if (Object.prototype.hasOwnProperty.call(urlComponents.otherURLQueryParams, property)) {
query.push(property + "=" + urlComponents.otherURLQueryParams[property]);
}
}
}
if (urlComponents.otherURLQueryOptions.length !== 0) {
for (const str of urlComponents.otherURLQueryOptions) {
query.push(str);
}
}
return query.length > 0 ? "?" + query.join("&") : "";
}
/**
* @private
* Parses the query parameters to set the urlComponents property of the GraphRequest object
* @param {string|KeyValuePairObjectStringNumber} queryDictionaryOrString - The query parameter
* @returns The same GraphRequest instance that is being called with
*/
private parseQueryParameter(queryDictionaryOrString: string | KeyValuePairObjectStringNumber): GraphRequest {
if (typeof queryDictionaryOrString === "string") {
if (queryDictionaryOrString.charAt(0) === "?") {
queryDictionaryOrString = queryDictionaryOrString.substring(1);
}
if (queryDictionaryOrString.indexOf("&") !== -1) {
const queryParams = queryDictionaryOrString.split("&");
for (const str of queryParams) {
this.parseQueryParamenterString(str);
}
} else {
this.parseQueryParamenterString(queryDictionaryOrString);
}
} else if (queryDictionaryOrString.constructor === Object) {
for (const key in queryDictionaryOrString) {
if (Object.prototype.hasOwnProperty.call(queryDictionaryOrString, key)) {
this.setURLComponentsQueryParamater(key, queryDictionaryOrString[key]);
}
}
}
return this;
}
/**
* @private
* Parses the query parameter of string type to set the urlComponents property of the GraphRequest object
* @param {string} queryParameter - the query parameters
* returns nothing
*/
private parseQueryParamenterString(queryParameter: string): void {
/* The query key-value pair must be split on the first equals sign to avoid errors in parsing nested query parameters.
Example-> "/me?$expand=home($select=city)" */
if (this.isValidQueryKeyValuePair(queryParameter)) {
const indexOfFirstEquals = queryParameter.indexOf("=");
const paramKey = queryParameter.substring(0, indexOfFirstEquals);
const paramValue = queryParameter.substring(indexOfFirstEquals + 1);
this.setURLComponentsQueryParamater(paramKey, paramValue);
} else {
/* Push values which are not of key-value structure.
Example-> Handle an invalid input->.query(test), .query($select($select=name)) and let the Graph API respond with the error in the URL*/
this.urlComponents.otherURLQueryOptions.push(queryParameter);
}
}
/**
* @private
* Sets values into the urlComponents property of GraphRequest object.
* @param {string} paramKey - the query parameter key
* @param {string} paramValue - the query paramter value
* @returns nothing
*/
private setURLComponentsQueryParamater(paramKey: string, paramValue: string | number): void {
if (oDataQueryNames.indexOf(paramKey) !== -1) {
const currentValue = this.urlComponents.oDataQueryParams[paramKey];
const isValueAppendable = currentValue && (paramKey === "$expand" || paramKey === "$select" || paramKey === "$orderby");
this.urlComponents.oDataQueryParams[paramKey] = isValueAppendable ? currentValue + "," + paramValue : paramValue;
} else {
this.urlComponents.otherURLQueryParams[paramKey] = paramValue;
}
}
/**
* @private
* Check if the query parameter string has a valid key-value structure
* @param {string} queryString - the query parameter string. Example -> "name=value"
* #returns true if the query string has a valid key-value structure else false
*/
private isValidQueryKeyValuePair(queryString: string): boolean {
const indexofFirstEquals = queryString.indexOf("=");
if (indexofFirstEquals === -1) {
return false;
}
const indexofOpeningParanthesis = queryString.indexOf("(");
if (indexofOpeningParanthesis !== -1 && queryString.indexOf("(") < indexofFirstEquals) {
// Example -> .query($select($expand=true));
return false;
}
return true;
}
/**
* @private
* Updates the custom headers and options for a request
* @param {FetchOptions} options - The request options object
* @returns Nothing
*/
private updateRequestOptions(options: FetchOptions): void {
const optionsHeaders: HeadersInit = { ...options.headers };
if (this.config.fetchOptions !== undefined) {
const fetchOptions: FetchOptions = { ...this.config.fetchOptions };
Object.assign(options, fetchOptions);
if (typeof this.config.fetchOptions.headers !== undefined) {
options.headers = { ...this.config.fetchOptions.headers };
}
}
Object.assign(options, this._options);
if (options.headers !== undefined) {
Object.assign(optionsHeaders, options.headers);
}
Object.assign(optionsHeaders, this._headers);
options.headers = optionsHeaders;
}
/**
* @private
* @async
* Adds the custom headers and options to the request and makes the HTTPClient send request call
* @param {RequestInfo} request - The request url string or the Request object value
* @param {FetchOptions} options - The options to make a request
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the response content
*/
private async send(request: RequestInfo, options: FetchOptions, callback?: GraphRequestCallback): Promise<any> {
let rawResponse: Response;
const middlewareControl = new MiddlewareControl(this._middlewareOptions);
this.updateRequestOptions(options);
const customHosts = this.config?.customHosts;
try {
const context: Context = await this.httpClient.sendRequest({
request,
options,
middlewareControl,
customHosts,
});
rawResponse = context.response;
const response: any = await GraphResponseHandler.getResponse(rawResponse, this._responseType, callback);
return response;
} catch (error) {
if (error instanceof GraphClientError) {
throw error;
}
let statusCode: number;
if (rawResponse) {
statusCode = rawResponse.status;
}
const gError: GraphError = await GraphErrorHandler.getError(error, statusCode, callback, rawResponse);
throw gError;
}
}
/**
* @private
* Checks if the content-type is present in the _headers property. If not present, defaults the content-type to application/json
* @param none
* @returns nothing
*/
private setHeaderContentType(): void {
if (!this._headers) {
this.header("Content-Type", "application/json");
return;
}
const headerKeys = Object.keys(this._headers);
for (const headerKey of headerKeys) {
if (headerKey.toLowerCase() === "content-type") {
return;
}
}
// Default the content-type to application/json in case the content-type is not present in the header
this.header("Content-Type", "application/json");
}
/**
* @public
* Sets the custom header for a request
* @param {string} headerKey - A header key
* @param {string} headerValue - A header value
* @returns The same GraphRequest instance that is being called with
*/
public header(headerKey: string, headerValue: string): GraphRequest {
this._headers[headerKey] = headerValue;
return this;
}
/**
* @public
* Sets the custom headers for a request
* @param {KeyValuePairObjectStringNumber | HeadersInit} headers - The request headers
* @returns The same GraphRequest instance that is being called with
*/
public headers(headers: KeyValuePairObjectStringNumber | HeadersInit): GraphRequest {
for (const key in headers) {
if (Object.prototype.hasOwnProperty.call(headers, key)) {
this._headers[key] = headers[key] as string;
}
}
return this;
}
/**
* @public
* Sets the option for making a request
* @param {string} key - The key value
* @param {any} value - The value
* @returns The same GraphRequest instance that is being called with
*/
public option(key: string, value: any): GraphRequest {
this._options[key] = value;
return this;
}
/**
* @public
* Sets the options for making a request
* @param {{ [key: string]: any }} options - The options key value pair
* @returns The same GraphRequest instance that is being called with
*/
public options(options: { [key: string]: any }): GraphRequest {
for (const key in options) {
if (Object.prototype.hasOwnProperty.call(options, key)) {
this._options[key] = options[key];
}
}
return this;
}
/**
* @public
* Sets the middleware options for a request
* @param {MiddlewareOptions[]} options - The array of middleware options
* @returns The same GraphRequest instance that is being called with
*/
public middlewareOptions(options: MiddlewareOptions[]): GraphRequest {
this._middlewareOptions = options;
return this;
}
/**
* @public
* Sets the api endpoint version for a request
* @param {string} version - The version value
* @returns The same GraphRequest instance that is being called with
*/
public version(version: string): GraphRequest {
this.urlComponents.version = version;
return this;
}
/**
* @public
* Sets the api endpoint version for a request
* @param {ResponseType} responseType - The response type value
* @returns The same GraphRequest instance that is being called with
*/
public responseType(responseType: ResponseType): GraphRequest {
this._responseType = responseType;
return this;
}
/**
* @public
* To add properties for select OData Query param
* @param {string|string[]} properties - The Properties value
* @returns The same GraphRequest instance that is being called with, after adding the properties for $select query
*/
/*
* Accepts .select("displayName,birthday")
* and .select(["displayName", "birthday"])
* and .select("displayName", "birthday")
*
*/
public select(properties: string | string[]): GraphRequest {
this.addCsvQueryParameter("$select", properties, arguments);
return this;
}
/**
* @public
* To add properties for expand OData Query param
* @param {string|string[]} properties - The Properties value
* @returns The same GraphRequest instance that is being called with, after adding the properties for $expand query
*/
public expand(properties: string | string[]): GraphRequest {
this.addCsvQueryParameter("$expand", properties, arguments);
return this;
}
/**
* @public
* To add properties for orderby OData Query param
* @param {string|string[]} properties - The Properties value
* @returns The same GraphRequest instance that is being called with, after adding the properties for $orderby query
*/
public orderby(properties: string | string[]): GraphRequest {
this.addCsvQueryParameter("$orderby", properties, arguments);
return this;
}
/**
* @public
* To add query string for filter OData Query param. The request URL accepts only one $filter Odata Query option and its value is set to the most recently passed filter query string.
* @param {string} filterStr - The filter query string
* @returns The same GraphRequest instance that is being called with, after adding the $filter query
*/
public filter(filterStr: string): GraphRequest {
this.urlComponents.oDataQueryParams.$filter = filterStr;
return this;
}
/**
* @public
* To add criterion for search OData Query param. The request URL accepts only one $search Odata Query option and its value is set to the most recently passed search criterion string.
* @param {string} searchStr - The search criterion string
* @returns The same GraphRequest instance that is being called with, after adding the $search query criteria
*/
public search(searchStr: string): GraphRequest {
this.urlComponents.oDataQueryParams.$search = searchStr;
return this;
}
/**
* @public
* To add number for top OData Query param. The request URL accepts only one $top Odata Query option and its value is set to the most recently passed number value.
* @param {number} n - The number value
* @returns The same GraphRequest instance that is being called with, after adding the number for $top query
*/
public top(n: number): GraphRequest {
this.urlComponents.oDataQueryParams.$top = n;
return this;
}
/**
* @public
* To add number for skip OData Query param. The request URL accepts only one $skip Odata Query option and its value is set to the most recently passed number value.
* @param {number} n - The number value
* @returns The same GraphRequest instance that is being called with, after adding the number for the $skip query
*/
public skip(n: number): GraphRequest {
this.urlComponents.oDataQueryParams.$skip = n;
return this;
}
/**
* @public
* To add token string for skipToken OData Query param. The request URL accepts only one $skipToken Odata Query option and its value is set to the most recently passed token value.
* @param {string} token - The token value
* @returns The same GraphRequest instance that is being called with, after adding the token string for $skipToken query option
*/
public skipToken(token: string): GraphRequest {
this.urlComponents.oDataQueryParams.$skipToken = token;
return this;
}
/**
* @public
* To add boolean for count OData Query param. The URL accepts only one $count Odata Query option and its value is set to the most recently passed boolean value.
* @param {boolean} isCount - The count boolean
* @returns The same GraphRequest instance that is being called with, after adding the boolean value for the $count query option
*/
public count(isCount = true): GraphRequest {
this.urlComponents.oDataQueryParams.$count = isCount.toString();
return this;
}
/**
* @public
* Appends query string to the urlComponent
* @param {string|KeyValuePairObjectStringNumber} queryDictionaryOrString - The query value
* @returns The same GraphRequest instance that is being called with, after appending the query string to the url component
*/
/*
* Accepts .query("displayName=xyz")
* and .select({ name: "value" })
*/
public query(queryDictionaryOrString: string | KeyValuePairObjectStringNumber): GraphRequest {
return this.parseQueryParameter(queryDictionaryOrString);
}
/**
* @public
* @async
* Makes a http request with GET method
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the get response
*/
public async get(callback?: GraphRequestCallback): Promise<any> {
const url = this.buildFullUrl();
const options: FetchOptions = {
method: RequestMethod.GET,
};
const response = await this.send(url, options, callback);
return response;
}
/**
* @public
* @async
* Makes a http request with POST method
* @param {any} content - The content that needs to be sent with the request
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the post response
*/
public async post(content: any, callback?: GraphRequestCallback): Promise<any> {
const url = this.buildFullUrl();
const options: FetchOptions = {
method: RequestMethod.POST,
body: serializeContent(content),
};
const className: string = content && content.constructor && content.constructor.name;
if (className === "FormData") {
// Content-Type headers should not be specified in case the of FormData type content
options.headers = {};
} else {
this.setHeaderContentType();
options.headers = this._headers;
}
return await this.send(url, options, callback);
}
/**
* @public
* @async
* Alias for Post request call
* @param {any} content - The content that needs to be sent with the request
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the post response
*/
public async create(content: any, callback?: GraphRequestCallback): Promise<any> {
return await this.post(content, callback);
}
/**
* @public
* @async
* Makes http request with PUT method
* @param {any} content - The content that needs to be sent with the request
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the put response
*/
public async put(content: any, callback?: GraphRequestCallback): Promise<any> {
const url = this.buildFullUrl();
this.setHeaderContentType();
const options: FetchOptions = {
method: RequestMethod.PUT,
body: serializeContent(content),
};
return await this.send(url, options, callback);
}
/**
* @public
* @async
* Makes http request with PATCH method
* @param {any} content - The content that needs to be sent with the request
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the patch response
*/
public async patch(content: any, callback?: GraphRequestCallback): Promise<any> {
const url = this.buildFullUrl();
this.setHeaderContentType();
const options: FetchOptions = {
method: RequestMethod.PATCH,
body: serializeContent(content),
};
return await this.send(url, options, callback);
}
/**
* @public
* @async
* Alias for PATCH request
* @param {any} content - The content that needs to be sent with the request
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the patch response
*/
public async update(content: any, callback?: GraphRequestCallback): Promise<any> {
return await this.patch(content, callback);
}
/**
* @public
* @async
* Makes http request with DELETE method
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the delete response
*/
public async delete(callback?: GraphRequestCallback): Promise<any> {
const url = this.buildFullUrl();
const options: FetchOptions = {
method: RequestMethod.DELETE,
};
return await this.send(url, options, callback);
}
/**
* @public
* @async
* Alias for delete request call
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the delete response
*/
public async del(callback?: GraphRequestCallback): Promise<any> {
return await this.delete(callback);
}
/**
* @public
* @async
* Makes a http request with GET method to read response as a stream.
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the getStream response
*/
public async getStream(callback?: GraphRequestCallback): Promise<any> {
const url = this.buildFullUrl();
const options = {
method: RequestMethod.GET,
};
this.responseType(ResponseType.STREAM);
return await this.send(url, options, callback);
}
/**
* @public
* @async
* Makes a http request with GET method to read response as a stream.
* @param {any} stream - The stream instance
* @param {GraphRequestCallback} [callback] - The callback function to be called in response with async call
* @returns A promise that resolves to the putStream response
*/
public async putStream(stream: any, callback?: GraphRequestCallback): Promise<any> {
const url = this.buildFullUrl();
const options = {
method: RequestMethod.PUT,
headers: {
"Content-Type": "application/octet-stream",
},
body: stream,
};
return await this.send(url, options, callback);
}
}