Custom module not found on AWS Lambda

[omasson-perso]

Hi,

We are trying to use jsreport on AWS via Lambda functions but we are stuck with a module problem.
You can see below our project directories :

The custom modules are saved in the scripts folder.

When i try to require a custom module in one of my report content.js, I got the following error on AWS (everything is working well locally and the scripts folder is well uploaded to /var/tasks/scripts/... on my lambda).

{
  "errorType": "Error",
  "errorMessage": "Error while executing user script. Unable to find module ./scripts/database/afpdb\nThe require calls:\nrequire('./scripts/database/afpdb')\nrequire('/var/task/scripts/database/afpdb')\nrequire('/var/runtime/scripts/database/afpdb')\n. \n\n  1 | const _createHelperAfpdb = require('./scripts/database/afpdb');\n    |                            ^\n  2 | const _createHelperCommon = require('./scripts/common');\n  3 | const _createBeforeRenderHandler = require('./scripts/beforerender');\n  4 | const _createHelperIssuer = require('./scripts/database/issuer');\n\n",
  "trace": [
    "Error: Unable to find module ./scripts/database/afpdb",
    "The require calls:",
    "require('./scripts/database/afpdb')",
    "require('/var/task/scripts/database/afpdb')",
    "require('/var/runtime/scripts/database/afpdb')",
    "",
    "    at doRequire (/var/task/node_modules/jsreport-core/lib/render/safeSandbox.js:220:11)",
    "    at _require (/var/task/node_modules/jsreport-core/lib/render/safeSandbox.js:66:14)",
    "    at Object.base.apply (/var/task/node_modules/vm2/lib/contextify.js:469:32)",
    "    at evaluate-user-script.js:2:28",
    "    at Script.runInContext (vm.js:130:18)",
    "    at VM.run (/var/task/node_modules/vm2/lib/main.js:219:62)",
    "    at run (/var/task/node_modules/jsreport-core/lib/render/safeSandbox.js:171:19)",
    "    at scriptEvalChild (/var/task/node_modules/jsreport-scripts/lib/scriptEvalChild.js:210:5)",
    "    at scriptExecModuleWrapper (/var/task/node_modules/jsreport-core/lib/scriptExecModuleWrapper.js:34:26)",
    "    at process.<anonymous> (/var/task/node_modules/script-manager/lib/worker-processes.js:66:36)",
    "    at process.emit (events.js:314:20)",
    "    at emit (internal/child_process.js:877:12)",
    "    at processTicksAndRejections (internal/process/task_queues.js:85:21)"
  ]
}

Do you have any idea ?

Thanks a lot,

Regards,

[jan_blaha]

Please try it like this

const path = require('path')
const myModule = require(path.join(__appDirectory,  'scripts/database/afpdb'))

[omasson-perso]

Hi Jan,

Thanks for the quick reply.

After more digging, it appears that my modules are found but not formatted as you expect.

Actually, this is not working :

'use strict';

const _createAccess1 = require('module1');
const _createAccess2 = require("module2");
const _createAccess3 = require('module3');
const _config = require("config");
const _mongoose = require('mongoose');

module.exports = function () {
...
}

but this is working :

'use strict';

module.exports = function () {
    const _createAccess1 = require('module1');
    const _createAccess2 = require("module2");
    const _createAccess3 = require('module3');
    const _config = require("config");
    const _mongoose = require('mongoose');

....
}