The error code "invalid_code" occurred when attempting to send a request to the oauth.access URL via Slack

Question

The error code "invalid_code" occurred when attempting to send a request to the oauth.access URL via Slack

Recently, I've been facing an issue while trying to authenticate my app with Slack. Everything was running smoothly for a few days until it started showing me an error message

invalid_code

const requestBody = qs.stringify({
    code: code,
    redirect_uri: redirect_uri,
    client_id: client_id,
    client_secret: client_secret
  });

  await axios
    .post(url, requestBody, config).
then(server => console.log(server)).catch(err => console.log(err))

The server responded with:

{ ok: false, error: 'invalid_code' }

The code I received looks something like this:

code=303414024726.805164905556.526d546072e9b2408e0743f42ca3bb5843553a6c3b930b1de2c1e31847b25448

I believe this code is in JWT token format, but I'm unsure. Any assistance on this matter would be highly appreciated.

javascript authentication slack slack-api

Answer 1

Answer №1

It appears that this particular error message can be triggered by a variety of factors. Despite trying the solutions mentioned above without success, I was able to resolve the issue by creating a new client secret under "Settings" -> "Basic Information" -> "App Credentials". This action effectively invalidated all existing tokens, potentially playing a role in resolving the issue (even though attempting Li Xia's method of manually revoking all tokens did not yield results for me).

Answer 2

It appears that this particular error message can be triggered by a variety of factors. Despite trying the solutions mentioned above without success, I was able to resolve the issue by creating a new client secret under "Settings" -> "Basic Information" -> "App Credentials". This action effectively invalidated all existing tokens, potentially playing a role in resolving the issue (even though attempting Li Xia's method of manually revoking all tokens did not yield results for me).

Answer 3

Answer №2

To resolve the issue, it was determined that sending form-data instead of JSON in the request was the best solution. This insight was provided by Daniel Kent.

Answer 4

To resolve the issue, it was determined that sending form-data instead of JSON in the request was the best solution. This insight was provided by Daniel Kent.

Answer 5

Answer №3

This is the solution that worked for me

 const slackEndpoint = `https://slack.com/api/oauth.v2.access`;
const clientID = process.env.SLACK_CLIENT_ID;
const clientSecret = process.env.SLACK_CLIENT_SECRET;
const formData = {
    code,
    client_id: clientID,
    client_secret: clientSecret
}
var requestBody = [];
for (var prop in formData) {
    var encodedKey = encodeURIComponent(prop);
    var encodedVal = encodeURIComponent(formData[prop]);
    requestBody.push(encodedKey + "=" + encodedVal);
}
requestBody = requestBody.join("&");

const headers = {
    'Content-Type': 'application/x-www-form-urlencoded'
};

let options = {
    method: 'POST',
    url: slackEndpoint,
    data: requestBody,
    headers: headers
};

let result = await axios(options);

Answer 6

This is the solution that worked for me

 const slackEndpoint = `https://slack.com/api/oauth.v2.access`;
const clientID = process.env.SLACK_CLIENT_ID;
const clientSecret = process.env.SLACK_CLIENT_SECRET;
const formData = {
    code,
    client_id: clientID,
    client_secret: clientSecret
}
var requestBody = [];
for (var prop in formData) {
    var encodedKey = encodeURIComponent(prop);
    var encodedVal = encodeURIComponent(formData[prop]);
    requestBody.push(encodedKey + "=" + encodedVal);
}
requestBody = requestBody.join("&");

const headers = {
    'Content-Type': 'application/x-www-form-urlencoded'
};

let options = {
    method: 'POST',
    url: slackEndpoint,
    data: requestBody,
    headers: headers
};

let result = await axios(options);

Answer 7

Answer №4

Encountered a similar issue where the code was initially working but then started receiving an "invalid code" error in the response. As it turns out, this error occurs when there is an existing OAuth token for the app/workspace.

To resolve this issue, navigate to the "OAuth & Permissions" section in Slack's App management, and revoke all tokens (located at the bottom of the page). Upon your next request, a new token will be returned.

Answer 8

Encountered a similar issue where the code was initially working but then started receiving an "invalid code" error in the response. As it turns out, this error occurs when there is an existing OAuth token for the app/workspace.

To resolve this issue, navigate to the "OAuth & Permissions" section in Slack's App management, and revoke all tokens (located at the bottom of the page). Upon your next request, a new token will be returned.

Answer 9

Answer №5

As per the information provided in Slack's API documentation, it is mentioned that while most other endpoints do support JSON payloads, the oauth.v2.access does not. In this case, you are required to send data in the format of

application/x-www-form-urlencoded

.

Answer 10

As per the information provided in Slack's API documentation, it is mentioned that while most other endpoints do support JSON payloads, the oauth.v2.access does not. In this case, you are required to send data in the format of

application/x-www-form-urlencoded

.

The error code "invalid_code" occurred when attempting to send a request to the oauth.access URL via Slack

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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