Import Discord Messages to Slack

Import Discord Messages to Slack.md

How To

First you have to download your messages in json format, this bookmarklet works like a charm: https://dht.chylex.com/ You will end up with file like this:

{
  "meta": {
    "users": {}
    .....
  },
  "data": {
    "377219647788941312": {
      "416188803078815744": {
        "u": 0,
        "t": 1519297543068,
        "m": "a first message of 0"
      },
      .....

Then convert the json file to a csv recognized by slack. It should looks like this:

"1519297543068","channel", "marcin","a first message of 0"

You can use the script below. It converts only first conversation / channel though:

infile="discord.json" # Change me to your discord file
outfile="discord-slack.csv" 

import json
import os

with open(infile,"rt") as f;
   l = json.load(f)

mess = list(list(l["data"].values())[0].values())
data = [(m["t"], "discord-archive", m["u"], m["m"] + " "+str(m.get("a",""))) for m in mess ]
with open(outfile,'wt') as out:
    csv_out=csv.writer(out)
    csv_out.writerows(data)   

Then go to Slack https://< your org>.slack.com/services/import select CSV/Text File, upload the file and start importing. Btw The import takes ages. In my case 5k messages took over an hour.