nativescript-http-formdata/TNSHttpFormData.android.js

A NativeScript plugin to post/upload file as multipart/form-data to server.

import { Common } from './TNSHttpFormData.common';
export class TNSHttpFormData extends Common {
    constructor() {
        super();
    }
    post(url, params, options) {
        return new Promise((resolve, reject) => {
            try {
                let client = new okhttp3.OkHttpClient();
                let builder = new okhttp3.MultipartBody.Builder();
                const FORM_MEDIA_TYPE = okhttp3.MediaType.parse("multipart/form-data");
                builder.setType(FORM_MEDIA_TYPE);
                for (let param of params) {
                    if (param.fileName && param.contentType) {
                        const MEDIA_TYPE = okhttp3.MediaType.parse(param.contentType);
                        builder.addFormDataPart(param.parameterName, param.fileName, okhttp3.RequestBody.create(MEDIA_TYPE, param.data));
                    }
                    else {
                        builder.addFormDataPart(param.parameterName, param.data);
                    }
                }
                let requestBody = builder.build();
                let reqWithURL = new okhttp3.Request.Builder()
                    .url(url);
                if (options && options.headers) {
                    for (let k in options.headers) {
                        reqWithURL.addHeader(k, options.headers[k]);
                    }
                }
                const request = reqWithURL
                    .post(requestBody)
                    .build();
                let callback = new okhttp3.Callback({
                    onResponse: (call, response) => {
                        let body;
                        try {
                            body = JSON.parse(response.body().string());
                        }
                        catch (e) {
                            body = response.body().string();
                        }
                        let customResponse = {
                            headers: response.headers().toString(),
                            statusCode: response.code(),
                            statusMessage: response.message(),
                            body: body
                        };
                        resolve(customResponse);
                    },
                    onFailure: (call, response) => {
                        reject(response);
                    }
                });
                client.newCall(request).enqueue(callback);
            }
            catch (e) {
                reject(e);
            }
        });
    }
}
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