How to create an import content plugin (part 2/4)

This tutorial is part of the « How to create your own plugin »:

Please note: Since we initially published this blog post, we released new versions of Strapi and tutorials may be outdated. Sorry for the inconvenience if it's the case. Please help us by reporting it here.

Table of contents

• Upload From file (part 1)
• Upload from url and raw input (part 2) - current
• Services (part 3)
• History Page (part 4)

You can reach the code for this tutorial at this link

ExternalUrlForm Component

Alright! Until now we are providing three options to import data, but we only implemented one of them which is the file upload. Now we are about to implement the other approaches starting from “External Url”;

• Go to components directory and create a new directory named ExternalUrlForm with an index.js file inside:

  admin/src/components/ExternalUrlForm/index.js

This will show the users a form for providing their data source url.

• Open the index.js file and paste the following:

1import React, { Component } from "react";
2import PropTypes from "prop-types";
3import Row from "../Row";
4import { Label, InputText } from "@buffetjs/core";
5import { LoadingIndicator } from "strapi-helper-plugin";
6
7class ExternalUrlForm extends Component {
8  state = { url: "" };
9  preAnalyzeImportFile = async url => {
10    this.setState({ url }, () => {
11      this.props.onRequestAnalysis({ source: "url", options: { url } });
12    });
13  };
14}
15ExternalUrlForm.propTypes = {
16  onRequestAnalysis: PropTypes.func.isRequired,
17  loadingAnalysis: PropTypes.bool.isRequired
18};
19
20export default ExternalUrlForm;

Our approach here, is the same as UploadFileForm component; here we are keeping track of the provided url instead of a file; and when the user provides us with a url, we will call the onRequestAnalysis which is handed down to us from the HomePage.

• For the UI part, paste the below code as your render method after the preAnalyzeImportFile method:

1render() {
2    const { url } = this.state;
3    const { loadingAnalysis } = this.props;
4    return (
5      <Row>
6        <Label message={"Import URL"} htmlFor={"urlInput"} />
7        <InputText
8          name={"urlInput"}
9          placeholder={"https://www.nasa.gov/rss/dyn/educationnews.rss"}
10          type={"url"}
11          value={url}
12          onChange={({ target: { value } }) => {
13            this.preAnalyzeImportFile(value);
14          }}
15        />
16        <Row>{loadingAnalysis && <LoadingIndicator />} </Row>
17      </Row>
18    );
19  }

RawInputForm component

• Create another directory named RawInputForm inside components directory:

  admin/src/components/RawInputForm/index.js

• Create and open the index.js file inside our new RawInputForm directory and paste the following:

1import React, {Component} from 'react'
2import PropTypes from 'prop-types'
3import {Label, Select, Button, Textarea} from '@buffetjs/core'
4import Row from "../Row";
5
6class RawInputForm extends Component {
7  dataFormats = [{label: 'csv', value: 'text/csv'}];
8  state = {
9    rawText: '',
10    dataFormat: 'text/csv'
11  }
12  textChanged = async rawText => {
13    this.setState({rawText});
14  };
15  changeDataFormat = dataFormat => {
16    this.setState({dataFormat});
17  };
18  analyze = () => {
19    const { dataFormat, rawText } = this.state;
20    this.props.onRequestAnalysis({
21      source: "raw",
22      type: this.state.dataFormat,
23      options: { rawText }
24    });
25  };
26};
27
28RawInputForm.propTypes = {
29  onRequestAnalysis: PropTypes.func.isRequired,
30  loadingAnalysis: PropTypes.bool.isRequired
31}
32export default RawInputForm

• For the render method:

1  render() { return (
2    <div className={'col-12'}>
3      <Row className={'row'}>
4        <Label
5          message={'Data Format'}
6          htmlFor={'dataFormats'}
7        />
8        <Select
9          name={'dataFormats'}
10          options={this.dataFormats}
11          value={this.state.dataFormat}
12          onChange={({target: {value}}) => this.changeDataFormat(value)}
13        />
14      </Row>
15      <Row
16        className={'row'}>
17        <Textarea
18          name={'rawTextarea'}
19          className={'col-12'}
20          textStyle={{
21            fontFamily: 'monospace'
22          }}
23          value={this.state.rawText}
24          onChange={({target: {value}}) => {
25            this.textChanged(value)
26          }} />
27      </Row>
28      <Row className={'row'}>
29        <Button
30          label={'Analyze'}
31          onClick={() => this.analyze()}
32        />
33      </Row>
34    </div>
35  )}

Awesome! We have implemented the other 2 ways available for importing data and it is time to actually use them. Open index.js file at HomePage and add the following imports:

1import ExternalUrlForm from "../../components/ExternalUrlForm";
2import RawInputForm from "../../components/RawInputForm";

• Then replace the <UploadFileForm /> tag which is shown as below:

1<UploadFileForm
2onRequestAnalysis={this.onRequestAnalysis} loadingAnalysis={this.state.analyzing} />

with the following:

1			<Row>
2              {this.state.importSource === "upload" && (
3                <UploadFileForm
4                  onRequestAnalysis={this.onRequestAnalysis}
5                  loadingAnalysis={this.state.analyzing}
6                />
7              )}
8              {this.state.importSource === "url" && (
9                <ExternalUrlForm
10                  onRequestAnalysis={this.onRequestAnalysis}
11                  loadingAnalysis={this.state.analyzing}
12                />
13              )}
14              {this.state.importSource === "raw" && (
15                <RawInputForm
16                  onRequestAnalysis={this.onRequestAnalysis}
17                  loadingAnalysis={this.state.analyzing}
18                />
19              )}
20            </Row>

Here we go!

Great you finished the second part of this tutorial! Let's create the necessary services ! https://strapi.io/blog/how-to-create-an-import-content-plugin-part-3-4