@web-bee-ru/openapi-axios/dist/src/utils/querySerializer.js

A TypeScript abstraction over Axios for typed requests generated from OpenAPI (Swagger) schemas using openapi-typescript.

import queryString from "query-string";
import { QuerySerializerStyle, } from "../types/serializer.js";
export function getQuerySerializer({ style, explode, }) {
    return (params) => {
        switch (style) {
            case QuerySerializerStyle.From:
                // form true: simple  /users?id=5, arr: /users?id=3&id=4&id=5, obj: /users?role=admin&firstName=Alex
                if (explode) {
                    return queryString.stringify(flatObjects(params), { encode: true });
                }
                // form false: simple  /users?id=5, arr: /users?id=3,4,5, obj: /users?id=role,admin,firstName,Alex
                else {
                    return queryString.stringify(ObjectsToArray(params), {
                        arrayFormat: "comma",
                        encode: true,
                    });
                }
            case QuerySerializerStyle.SpaceDelimited:
                // spaceDelimited true: simple  n/a, arr: /users?id=3&id=4&id=5, obj: n/a
                if (explode) {
                    return queryString.stringify(flatObjects(params), { encode: true });
                }
                // spaceDelimited false: simple  n/a, arr: /users?id=3 4 5, obj: n/a
                else {
                    return queryString.stringify(params, {
                        encode: true,
                        arrayFormat: "separator",
                        arrayFormatSeparator: " ",
                    });
                }
            case QuerySerializerStyle.PipeDelimited:
                // pipeDelimited true: simple  n/a, arr: /users?id=3&id=4&id=5, obj: n/a
                if (explode) {
                    return queryString.stringify(flatObjects(params), { encode: true });
                }
                // pipeDelimited false: simple  n/a, arr: /users?id=3|4|5, obj: n/a
                else {
                    return queryString.stringify(params, {
                        encode: true,
                        arrayFormat: "separator",
                        arrayFormatSeparator: "|",
                    });
                }
            case QuerySerializerStyle.DeepObject:
                // deepObject true: simple  n/a, arr: n/a, obj: /users?id[role]=admin&id[firstName]=Alex
                return queryString.stringify(toDeepObject(params), { encode: true });
        }
    };
}
function flatObjects(params) {
    return Object.fromEntries(Object.entries(params)
        .map(([key, value]) => {
        if (typeof value === "object" &&
            !Array.isArray(value) &&
            value !== null) {
            return Object.entries(value);
        }
        return [[key, value]];
    })
        .flat());
}
function ObjectsToArray(params) {
    return Object.fromEntries(Object.entries(params).map(([key, value]) => {
        if (typeof value === "object" &&
            !Array.isArray(value) &&
            value !== null) {
            return [
                key,
                Object.entries(value)
                    .map(([innerKey, innerValue]) => `${innerKey},${innerValue}`)
                    .join(","),
            ];
        }
        return [key, value];
    }));
}
function toDeepObject(params, prevKeys = []) {
    return Object.fromEntries(Object.entries(params)
        .map(([key, value]) => {
        if (typeof value === "object" &&
            !Array.isArray(value) &&
            value !== null) {
            return Object.entries(toDeepObject(value, [...prevKeys, key]));
        }
        const [firstKey, ...restKeys] = [...prevKeys, key];
        const resKey = `${firstKey}${restKeys.map((k) => `[${k}]`).join("")}`;
        return [[resKey, value]];
    })
        .flat());
}
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