A system for exporting references from Zotero and importing them to Tiddlywiki.

main.go

package main

import (
	"bufio"
	"bytes"
	"encoding/json"
	"fmt"
	"io/fs"
	"log"
	"net/http"
	"os"
)

type Fields struct {
	Caption     string `json:"caption"`
	Publication string `json:"publication"`
	Zlink       string `json:"zlink"`
	Year        string `json:"year"`
	Authors     string `json:"authors"`
	Medium      string `json:"medium"`
}

type Source struct {
	Type   string `json:"type"`
	Title  string `json:"title"`
	Tags   string `json:"tags"`
	Fields Fields `json:"fields"`
}

func parseTitleAndBody(s *Source) (title string, body []byte) {
	// re-encode the json body
	// return the body and title
	body, _ = json.Marshal(s)
	title = s.Title

	return title, body
}

func sendTwPut(title string, body []byte) {
	// TW Put (PUT http://127.0.0.1:8080/recipes/default/tiddlers/TIDDLER_TITLE)

	// json := []byte(myjson)
	newBody := bytes.NewBuffer(body)

	// Create client
	client := &http.Client{}

	// Create URI
	uri := "http://127.0.0.1:8080/recipes/default/tiddlers/" + title

	// Create request
	req, _ := http.NewRequest("PUT", uri, newBody)

	// Headers
	req.Header.Add("x-requested-with", "TiddlyWiki")
	req.Header.Add("Content-Type", "application/json; charset=utf-8")

	// Execute the Request
	resp, err := client.Do(req)

	if err != nil {
		log.Fatal(err)
	}

	if resp.StatusCode == 204 {
		fmt.Printf("Tiddler '%s' created successfully.\n", title)
	} else {
		fmt.Println("Something went wrong. Tiddler not created.")
	}

	resp.Body.Close()

}

func main() {

	// pipe
  // Use the compiled binary command like so:
  // pbpaste | twimport
	var buf []byte
	scanner := bufio.NewScanner(os.Stdin)

	for scanner.Scan() {
		buf = append(buf, scanner.Bytes()...)
	}

	if err := scanner.Err(); err != nil {
		log.Fatal(err)
	}

	var sources []Source
	json.Unmarshal([]byte(buf), &sources)

	// for each source in sources, save title and json
	for _, s := range sources {
		title, body := parseTitleAndBody(&s)
		// returns body and title, send on to sendTwPut()
		sendTwPut(title, body)
	}

}

zotero_to_tiddlywiki_translator.js

{
	"translatorID": "3c2ea00ee65f4f53913810dc83362eff",
	"label": "TiddlyWiki Source JSON",
	"creator": "bsag",
	"target": "json",
	"minVersion": "1.0",
	"maxVersion": "",
	"priority": 100,
	"displayOptions": {
		"exportCharset": "UTF-8xBOM",
		"exportNotes": false
	},
	"inRepository": false,
	"translatorType": 2,
	"lastUpdated": "2021-05-16 16:43:20"
}



function doExport() {
	const tiddlers = [];
	let item;
	while (item = Zotero.nextItem()) {

		let auths = [];
		for (i = 0; i < item.creators.length; i++) {
			auths.push((item.creators[i].firstName ? item.creators[i].firstName + ' ' : '') + item.creators[i].lastName);
		}
		
		var library_id = item.libraryID ? item.libraryID : 0;
		let zot_link = "zotero://select/items/"+library_id+"_"+item.key

		let tiddler = {
			type : "text/vnd.tiddlywiki",
			title: item.citekey,
			tags : "Source",
			fields : {
				caption : item.title,
				publication : item.publicationTitle,
				zlink : zot_link,
				year : ZU.strToDate(item.date).year,
				authors : auths.join(", "),
				medium : item.itemType
			}
		};
		tiddlers.push(tiddler)
	}
	Zotero.write(JSON.stringify(tiddlers));
}