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axios-http-client.ejs
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axios-http-client.ejs
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<%
const { apiConfig, generateResponses, config } = it;
%>
import type { AxiosInstance, AxiosRequestConfig, HeadersDefaults, ResponseType, AxiosResponse } from "axios";
import axios from "axios";
export type QueryParamsType = Record<string | number, any>;
export interface FullRequestParams extends Omit<AxiosRequestConfig, "data" | "params" | "url" | "responseType"> {
/** set parameter to `true` for call `securityWorker` for this request */
secure?: boolean;
/** request path */
path: string;
/** content type of request body */
type?: ContentType;
/** query params */
query?: QueryParamsType;
/** format of response (i.e. response.json() -> format: "json") */
format?: ResponseType;
/** request body */
body?: unknown;
}
export type RequestParams = Omit<FullRequestParams, "body" | "method" | "query" | "path">;
export interface ApiConfig<SecurityDataType = unknown> extends Omit<AxiosRequestConfig, "data" | "cancelToken"> {
securityWorker?: (securityData: SecurityDataType | null) => Promise<AxiosRequestConfig | void> | AxiosRequestConfig | void;
secure?: boolean;
format?: ResponseType;
}
export enum ContentType {
Json = "application/json",
FormData = "multipart/form-data",
UrlEncoded = "application/x-www-form-urlencoded",
Text = "text/plain",
}
export class HttpClient<SecurityDataType = unknown> {
public instance: AxiosInstance;
private securityData: SecurityDataType | null = null;
private securityWorker?: ApiConfig<SecurityDataType>["securityWorker"];
private secure?: boolean;
private format?: ResponseType;
constructor({ securityWorker, secure, format, ...axiosConfig }: ApiConfig<SecurityDataType> = {}) {
this.instance = axios.create({ ...axiosConfig, baseURL: axiosConfig.baseURL || "<%~ apiConfig.baseUrl %>" })
this.secure = secure;
this.format = format;
this.securityWorker = securityWorker;
}
public setSecurityData = (data: SecurityDataType | null) => {
this.securityData = data
}
protected mergeRequestParams(params1: AxiosRequestConfig, params2?: AxiosRequestConfig): AxiosRequestConfig {
const method = params1.method || (params2 && params2.method)
return {
...this.instance.defaults,
...params1,
...(params2 || {}),
headers: {
...((method && this.instance.defaults.headers[method.toLowerCase() as keyof HeadersDefaults]) || {}),
...(params1.headers || {}),
...((params2 && params2.headers) || {}),
},
};
}
protected stringifyFormItem(formItem: unknown) {
if (typeof formItem === "object" && formItem !== null) {
return JSON.stringify(formItem);
} else {
return `${formItem}`;
}
}
protected createFormData(input: Record<string, unknown>): FormData {
if (input instanceof FormData) {
return input;
}
return Object.keys(input || {}).reduce((formData, key) => {
const property = input[key];
const propertyContent: any[] = (property instanceof Array) ? property : [property]
for (const formItem of propertyContent) {
const isFileType = formItem instanceof Blob || formItem instanceof File;
formData.append(
key,
isFileType ? formItem : this.stringifyFormItem(formItem)
);
}
return formData;
}, new FormData());
}
public request = async <T = any, _E = any>({
secure,
path,
type,
query,
format,
body,
...params
<% if (config.unwrapResponseData) { %>
}: FullRequestParams): Promise<T> => {
<% } else { %>
}: FullRequestParams): Promise<AxiosResponse<T>> => {
<% } %>
const secureParams = ((typeof secure === 'boolean' ? secure : this.secure) && this.securityWorker && (await this.securityWorker(this.securityData))) || {};
const requestParams = this.mergeRequestParams(params, secureParams);
const responseFormat = (format || this.format) || undefined;
if (type === ContentType.FormData && body && body !== null && typeof body === "object") {
body = this.createFormData(body as Record<string, unknown>);
}
if (type === ContentType.Text && body && body !== null && typeof body !== "string") {
body = JSON.stringify(body);
}
return this.instance.request({
...requestParams,
headers: {
...(requestParams.headers || {}),
...(type && type !== ContentType.FormData ? { "Content-Type": type } : {}),
},
params: query,
responseType: responseFormat,
data: body,
url: path,
<% if (config.unwrapResponseData) { %>
}).then(response => response.data);
<% } else { %>
});
<% } %>
};
}