I am trying to deploy a chess telegram bot for which the developer has a demo and it works well. However that code has a mistake in that black and white pieces are reversed and bishop and pawn are interchanged for both colours.
So I decided to fork it and corrected that error and figured I will host it myself to test and this is where I am stuck as I don't know much about the node - npm world. I have tried to get it to a point where heroku compiles it all without error:
but then this code uses knex module and if I try and run on my local machine the recommended npm run knex migrate:latestfrom original author it throws the error npm ERR! missing script: knex.
The fork that I have created is available here: https://github.com/pubmania/chessbot I have set the following environment variables on heroku:
This is again in line with guidance from original author.
Initially when I tried to create the dyno I was getting "no node engine" so I added the node engine with latest node version in package.json and then it gave the error "no start script" error so I added the start script in package.json which is essentially the same as "dev" but this took that error away. Now the log on heroku shows the below entries:
2020-05-05T10:31:34.714232+00:00 app[web.1]: at Object.<anonymous> (/app/src/index.js:23:23)
2020-05-05T10:31:34.714233+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:1133:30)
2020-05-05T10:31:34.714233+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
2020-05-05T10:31:34.714233+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:977:32)
2020-05-05T10:31:34.714234+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:877:14) {
2020-05-05T10:31:34.714234+00:00 app[web.1]: code: 'MODULE_NOT_FOUND',
2020-05-05T10:31:34.714234+00:00 app[web.1]: requireStack: [ '/app/src/index.js' ]
2020-05-05T10:31:34.714235+00:00 app[web.1]: }
2020-05-05T10:31:34.741594+00:00 app[web.1]: [31m[nodemon] app crashed - waiting for file changes before starting...[39m
2020-05-05T10:32:30.546060+00:00 heroku[web.1]: State changed from starting to crashed
I tried running the npm run knex migrate:latest command from heroku bash and I still got the same error as can be seen in screenshot below.
I was reading a bit more and added the following under scripts section of package.json
"knex": "node_modules/.bin/knex migrate:latest"
and then running the npm run knex on local gave
sqlite does not support inserting default values. Set the `useNullAsDefault` flag to hide this warning. (see docs http://knexjs.org/#Builder-insert).
which perhaps is explainable by the fact that on local i am using sqlite so i just ran heroku local web but that gave the error:
13:31:24 web.1 | > chessbot@1.0.0 start C:\a-chess-bot-git\chessbot
13:31:24 web.1 | > nodemon -w src src/index.js
13:31:25 web.1 | [nodemon] 1.19.4
13:31:25 web.1 | [nodemon] to restart at any time, enter `rs`
13:31:25 web.1 | [nodemon] watching dir(s): src\**\*
13:31:25 web.1 | [nodemon] watching extensions: js,mjs,json
13:31:25 web.1 | [nodemon] starting `node src/index.js`
13:31:25 web.1 | internal/modules/cjs/loader.js:960
13:31:25 web.1 | throw err;
13:31:25 web.1 | ^
13:31:25 web.1 | Error: Cannot find module 'C:\a-chess-bot-git\chessbot\src\scenes'
13:31:25 web.1 | Require stack:
13:31:25 web.1 | - C:\a-chess-bot-git\chessbot\src\index.js
13:31:25 web.1 | at Function.Module._resolveFilename (internal/modules/cjs/loader.js:957:15)
13:31:25 web.1 | at Function.Module._resolveFilename (C:\a-chess-bot-git\chessbot\node_modules\module-alias\index.js:49:29)
13:31:25 web.1 | at Function.Module._load (internal/modules/cjs/loader.js:840:27)
13:31:25 web.1 | at Module.require (internal/modules/cjs/loader.js:1019:19)
13:31:25 web.1 | at require (internal/modules/cjs/helpers.js:77:18)
13:31:25 web.1 | at Object.<anonymous> (C:\a-chess-bot-git\chessbot\src\index.js:23:23)
13:31:25 web.1 | at Module._compile (internal/modules/cjs/loader.js:1133:30)
13:31:25 web.1 | at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
13:31:25 web.1 | at Module.load (internal/modules/cjs/loader.js:977:32)
13:31:25 web.1 | at Function.Module._load (internal/modules/cjs/loader.js:877:14) {
13:31:25 web.1 | code: 'MODULE_NOT_FOUND',
13:31:25 web.1 | requireStack: [
13:31:25 web.1 | 'C:\\a-chess-bot-git\\chessbot\\src\\index.js'
13:31:25 web.1 | ]
13:31:25 web.1 | }
13:31:25 web.1 | [nodemon] app crashed - waiting for file changes before starting
Any help on getting this deployed on heroku will be hugely appreciated.
