smartrequest/ts/smartrequest.formdata.ts

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import * as plugins from './smartrequest.plugins';
import * as interfaces from './smartrequest.interfaces';
import { request } from './smartrequest.request';
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/**
* the interfae for FormFieldData
*/
export interface IFormField {
name: string;
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type: 'string' | 'filePath' | 'Buffer';
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payload: string | Buffer;
fileName?: string;
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contentType?: string;
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}
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const appendFormField = async (formDataArg: plugins.formData, formDataField: IFormField) => {
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switch (formDataField.type) {
case 'string':
formDataArg.append(formDataField.name, formDataField.payload);
break;
case 'filePath':
if (typeof formDataField.payload !== 'string') {
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throw new Error(
`Payload for key ${
formDataField.name
} must be of type string. Got ${typeof formDataField.payload} instead.`
);
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}
const fileData = plugins.fs.readFileSync(
plugins.path.join(process.cwd(), formDataField.payload)
);
formDataArg.append('file', fileData, {
filename: formDataField.fileName ? formDataField.fileName : 'upload.pdf',
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contentType: 'application/pdf',
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});
break;
case 'Buffer':
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formDataArg.append(formDataField.name, formDataField.payload, {
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filename: formDataField.fileName ? formDataField.fileName : 'upload.pdf',
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contentType: formDataField.contentType ? formDataField.contentType : 'application/pdf',
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});
break;
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}
};
export const postFormData = async (
urlArg: string,
optionsArg: interfaces.ISmartRequestOptions = {},
payloadArg: IFormField[]
) => {
const form = new plugins.formData();
for (const formField of payloadArg) {
await appendFormField(form, formField);
}
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const requestOptions = {
...optionsArg,
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method: 'POST',
headers: {
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...optionsArg.headers,
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...form.getHeaders(),
},
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requestBody: form,
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};
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// lets fire the actual request for sending the formdata
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const response = await request(urlArg, requestOptions);
return response;
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};