originstamp-client-fetch/runtime.ts

TypeScript Fetch client for the OriginStamp service

/* tslint:disable */
/* eslint-disable */
/**
 * OriginStamp Timestamping
 * OriginStamp Timestamping leverages decentralized blockchain technology to create anonymous, tamper-proof  timestamps for digital content. This service enables users to timestamp files, emails, or plain text, and store the resulting hashes on the blockchain. Users can also retrieve and verify timestamps that have been committed.  The trusted timestamping mechanism ensures that a hash fingerprint can be generated and used as proof that specific data existed at a given point in time.
 *
 * The version of the OpenAPI document: 1.0.0
 * Contact: support@originstamp.com
 *
 * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
 * https://openapi-generator.tech
 * Do not edit the class manually.
 */


export const BASE_PATH = "https://apidev.originstamp.com".replace(/\/+$/, "");

export interface ConfigurationParameters {
    basePath?: string; // override base path
    fetchApi?: FetchAPI; // override for fetch implementation
    middleware?: Middleware[]; // middleware to apply before/after fetch requests
    queryParamsStringify?: (params: HTTPQuery) => string; // stringify function for query strings
    username?: string; // parameter for basic security
    password?: string; // parameter for basic security
    apiKey?: string | Promise<string> | ((name: string) => string | Promise<string>); // parameter for apiKey security
    accessToken?: string | Promise<string> | ((name?: string, scopes?: string[]) => string | Promise<string>); // parameter for oauth2 security
    headers?: HTTPHeaders; //header params we want to use on every request
    credentials?: RequestCredentials; //value for the credentials param we want to use on each request
}

export class Configuration {
    constructor(private configuration: ConfigurationParameters = {}) {}

    set config(configuration: Configuration) {
        this.configuration = configuration;
    }

    get basePath(): string {
        return this.configuration.basePath != null ? this.configuration.basePath : BASE_PATH;
    }

    get fetchApi(): FetchAPI | undefined {
        return this.configuration.fetchApi;
    }

    get middleware(): Middleware[] {
        return this.configuration.middleware || [];
    }

    get queryParamsStringify(): (params: HTTPQuery) => string {
        return this.configuration.queryParamsStringify || querystring;
    }

    get username(): string | undefined {
        return this.configuration.username;
    }

    get password(): string | undefined {
        return this.configuration.password;
    }

    get apiKey(): ((name: string) => string | Promise<string>) | undefined {
        const apiKey = this.configuration.apiKey;
        if (apiKey) {
            return typeof apiKey === 'function' ? apiKey : () => apiKey;
        }
        return undefined;
    }

    get accessToken(): ((name?: string, scopes?: string[]) => string | Promise<string>) | undefined {
        const accessToken = this.configuration.accessToken;
        if (accessToken) {
            return typeof accessToken === 'function' ? accessToken : async () => accessToken;
        }
        return undefined;
    }

    get headers(): HTTPHeaders | undefined {
        return this.configuration.headers;
    }

    get credentials(): RequestCredentials | undefined {
        return this.configuration.credentials;
    }
}

export const DefaultConfig = new Configuration();

/**
 * This is the base class for all generated API classes.
 */
export class BaseAPI {

    private static readonly jsonRegex = new RegExp('^(:?application\/json|[^;/ \t]+\/[^;/ \t]+[+]json)[ \t]*(:?;.*)?$', 'i');
    private middleware: Middleware[];

    constructor(protected configuration = DefaultConfig) {
        this.middleware = configuration.middleware;
    }

    withMiddleware<T extends BaseAPI>(this: T, ...middlewares: Middleware[]) {
        const next = this.clone<T>();
        next.middleware = next.middleware.concat(...middlewares);
        return next;
    }

    withPreMiddleware<T extends BaseAPI>(this: T, ...preMiddlewares: Array<Middleware['pre']>) {
        const middlewares = preMiddlewares.map((pre) => ({ pre }));
        return this.withMiddleware<T>(...middlewares);
    }

    withPostMiddleware<T extends BaseAPI>(this: T, ...postMiddlewares: Array<Middleware['post']>) {
        const middlewares = postMiddlewares.map((post) => ({ post }));
        return this.withMiddleware<T>(...middlewares);
    }

    /**
     * Check if the given MIME is a JSON MIME.
     * JSON MIME examples:
     *   application/json
     *   application/json; charset=UTF8
     *   APPLICATION/JSON
     *   application/vnd.company+json
     * @param mime - MIME (Multipurpose Internet Mail Extensions)
     * @return True if the given MIME is JSON, false otherwise.
     */
    protected isJsonMime(mime: string | null | undefined): boolean {
        if (!mime) {
            return false;
        }
        return BaseAPI.jsonRegex.test(mime);
    }

    protected async request(context: RequestOpts, initOverrides?: RequestInit | InitOverrideFunction): Promise<Response> {
        const { url, init } = await this.createFetchParams(context, initOverrides);
        const response = await this.fetchApi(url, init);
        if (response && (response.status >= 200 && response.status < 300)) {
            return response;
        }
        throw new ResponseError(response, 'Response returned an error code');
    }

    private async createFetchParams(context: RequestOpts, initOverrides?: RequestInit | InitOverrideFunction) {
        let url = this.configuration.basePath + context.path;
        if (context.query !== undefined && Object.keys(context.query).length !== 0) {
            // only add the querystring to the URL if there are query parameters.
            // this is done to avoid urls ending with a "?" character which buggy webservers
            // do not handle correctly sometimes.
            url += '?' + this.configuration.queryParamsStringify(context.query);
        }

        const headers = Object.assign({}, this.configuration.headers, context.headers);
        Object.keys(headers).forEach(key => headers[key] === undefined ? delete headers[key] : {});

        const initOverrideFn =
            typeof initOverrides === "function"
                ? initOverrides
                : async () => initOverrides;

        const initParams = {
            method: context.method,
            headers,
            body: context.body,
            credentials: this.configuration.credentials,
        };

        const overriddenInit: RequestInit = {
            ...initParams,
            ...(await initOverrideFn({
                init: initParams,
                context,
            }))
        };

        let body: any;
        if (isFormData(overriddenInit.body)
            || (overriddenInit.body instanceof URLSearchParams)
            || isBlob(overriddenInit.body)) {
          body = overriddenInit.body;
        } else if (this.isJsonMime(headers['Content-Type'])) {
          body = JSON.stringify(overriddenInit.body);
        } else {
          body = overriddenInit.body;
        }

        const init: RequestInit = {
            ...overriddenInit,
            body
        };

        return { url, init };
    }

    private fetchApi = async (url: string, init: RequestInit) => {
        let fetchParams = { url, init };
        for (const middleware of this.middleware) {
            if (middleware.pre) {
                fetchParams = await middleware.pre({
                    fetch: this.fetchApi,
                    ...fetchParams,
                }) || fetchParams;
            }
        }
        let response: Response | undefined = undefined;
        try {
            response = await (this.configuration.fetchApi || fetch)(fetchParams.url, fetchParams.init);
        } catch (e) {
            for (const middleware of this.middleware) {
                if (middleware.onError) {
                    response = await middleware.onError({
                        fetch: this.fetchApi,
                        url: fetchParams.url,
                        init: fetchParams.init,
                        error: e,
                        response: response ? response.clone() : undefined,
                    }) || response;
                }
            }
            if (response === undefined) {
              if (e instanceof Error) {
                throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
              } else {
                throw e;
              }
            }
        }
        for (const middleware of this.middleware) {
            if (middleware.post) {
                response = await middleware.post({
                    fetch: this.fetchApi,
                    url: fetchParams.url,
                    init: fetchParams.init,
                    response: response.clone(),
                }) || response;
            }
        }
        return response;
    }

    /**
     * Create a shallow clone of `this` by constructing a new instance
     * and then shallow cloning data members.
     */
    private clone<T extends BaseAPI>(this: T): T {
        const constructor = this.constructor as any;
        const next = new constructor(this.configuration);
        next.middleware = this.middleware.slice();
        return next;
    }
};

function isBlob(value: any): value is Blob {
    return typeof Blob !== 'undefined' && value instanceof Blob;
}

function isFormData(value: any): value is FormData {
    return typeof FormData !== "undefined" && value instanceof FormData;
}

export class ResponseError extends Error {
    override name: "ResponseError" = "ResponseError";
    constructor(public response: Response, msg?: string) {
        super(msg);
    }
}

export class FetchError extends Error {
    override name: "FetchError" = "FetchError";
    constructor(public cause: Error, msg?: string) {
        super(msg);
    }
}

export class RequiredError extends Error {
    override name: "RequiredError" = "RequiredError";
    constructor(public field: string, msg?: string) {
        super(msg);
    }
}

export const COLLECTION_FORMATS = {
    csv: ",",
    ssv: " ",
    tsv: "\t",
    pipes: "|",
};

export type FetchAPI = WindowOrWorkerGlobalScope['fetch'];

export type Json = any;
export type HTTPMethod = 'GET' | 'POST' | 'PUT' | 'PATCH' | 'DELETE' | 'OPTIONS' | 'HEAD';
export type HTTPHeaders = { [key: string]: string };
export type HTTPQuery = { [key: string]: string | number | null | boolean | Array<string | number | null | boolean> | Set<string | number | null | boolean> | HTTPQuery };
export type HTTPBody = Json | FormData | URLSearchParams;
export type HTTPRequestInit = { headers?: HTTPHeaders; method: HTTPMethod; credentials?: RequestCredentials; body?: HTTPBody };
export type ModelPropertyNaming = 'camelCase' | 'snake_case' | 'PascalCase' | 'original';

export type InitOverrideFunction = (requestContext: { init: HTTPRequestInit, context: RequestOpts }) => Promise<RequestInit>

export interface FetchParams {
    url: string;
    init: RequestInit;
}

export interface RequestOpts {
    path: string;
    method: HTTPMethod;
    headers: HTTPHeaders;
    query?: HTTPQuery;
    body?: HTTPBody;
}

export function querystring(params: HTTPQuery, prefix: string = ''): string {
    return Object.keys(params)
        .map(key => querystringSingleKey(key, params[key], prefix))
        .filter(part => part.length > 0)
        .join('&');
}

function querystringSingleKey(key: string, value: string | number | null | undefined | boolean | Array<string | number | null | boolean> | Set<string | number | null | boolean> | HTTPQuery, keyPrefix: string = ''): string {
    const fullKey = keyPrefix + (keyPrefix.length ? `[${key}]` : key);
    if (value instanceof Array) {
        const multiValue = value.map(singleValue => encodeURIComponent(String(singleValue)))
            .join(`&${encodeURIComponent(fullKey)}=`);
        return `${encodeURIComponent(fullKey)}=${multiValue}`;
    }
    if (value instanceof Set) {
        const valueAsArray = Array.from(value);
        return querystringSingleKey(key, valueAsArray, keyPrefix);
    }
    if (value instanceof Date) {
        return `${encodeURIComponent(fullKey)}=${encodeURIComponent(value.toISOString())}`;
    }
    if (value instanceof Object) {
        return querystring(value as HTTPQuery, fullKey);
    }
    return `${encodeURIComponent(fullKey)}=${encodeURIComponent(String(value))}`;
}

export function exists(json: any, key: string) {
    const value = json[key];
    return value !== null && value !== undefined;
}

export function mapValues(data: any, fn: (item: any) => any) {
    const result: { [key: string]: any } = {};
    for (const key of Object.keys(data)) {
        result[key] = fn(data[key]);
    }
    return result;
}

export function canConsumeForm(consumes: Consume[]): boolean {
    for (const consume of consumes) {
        if ('multipart/form-data' === consume.contentType) {
            return true;
        }
    }
    return false;
}

export interface Consume {
    contentType: string;
}

export interface RequestContext {
    fetch: FetchAPI;
    url: string;
    init: RequestInit;
}

export interface ResponseContext {
    fetch: FetchAPI;
    url: string;
    init: RequestInit;
    response: Response;
}

export interface ErrorContext {
    fetch: FetchAPI;
    url: string;
    init: RequestInit;
    error: unknown;
    response?: Response;
}

export interface Middleware {
    pre?(context: RequestContext): Promise<FetchParams | void>;
    post?(context: ResponseContext): Promise<Response | void>;
    onError?(context: ErrorContext): Promise<Response | void>;
}

export interface ApiResponse<T> {
    raw: Response;
    value(): Promise<T>;
}

export interface ResponseTransformer<T> {
    (json: any): T;
}

export class JSONApiResponse<T> {
    constructor(public raw: Response, private transformer: ResponseTransformer<T> = (jsonValue: any) => jsonValue) {}

    async value(): Promise<T> {
        return this.transformer(await this.raw.json());
    }
}

export class VoidApiResponse {
    constructor(public raw: Response) {}

    async value(): Promise<void> {
        return undefined;
    }
}

export class BlobApiResponse {
    constructor(public raw: Response) {}

    async value(): Promise<Blob> {
        return await this.raw.blob();
    };
}

export class TextApiResponse {
    constructor(public raw: Response) {}

    async value(): Promise<string> {
        return await this.raw.text();
    };
}