Railway•15mo ago

How to change the number of replicas via API?

1) the API introspection in postman does not seem to know about the possibility of updating numReplicas (parsed from dashboard requests 2) I am new to gql so I tried a req that would work: mutation serviceInstanceUpdate { serviceInstanceUpdate( serviceId: "ID", input: { healthcheckTimeout: 300 } ) } but doing the same for numReplicas fails: mutation serviceInstanceUpdate { serviceInstanceUpdate( serviceId: "ID", input: { numReplicas: 5 } ) } with "message": "Problem processing request"

Solution:

Endpoint

https://backboard.railway.app/graphql/internal

https://backboard.railway.app/graphql/internal

Query...

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21 Replies

Brody•15mo ago

will get you this tomorrow

Solution

Brody•14mo ago

Endpoint

https://backboard.railway.app/graphql/internal

https://backboard.railway.app/graphql/internal

Query

mutation serviceInstanceUpdate($serviceId: String!, $environmentId: String, $input: ServiceInstanceUpdateInput!) {
  serviceInstanceUpdate(serviceId: $serviceId, environmentId: $environmentId, input: $input)
}

mutation serviceInstanceUpdate($serviceId: String!, $environmentId: String, $input: ServiceInstanceUpdateInput!) {
  serviceInstanceUpdate(serviceId: $serviceId, environmentId: $environmentId, input: $input)
}

Variables

{
  "serviceId": "",
  "environmentId": "",
  "input": {
    "numReplicas": 2
  }
}

{
  "serviceId": "",
  "environmentId": "",
  "input": {
    "numReplicas": 2
  }
}

Brody•14mo ago

let me know if you need help with anything else, and sorry this took so long

honzasterbaOP•14mo ago

ooh, so I have to go through the internal API, ok I was using the public API endpoint https://backboard.railway.app/graphql/v2

Brody•14mo ago

yeah you can't update the replica value with the public endpoint internal endpoint accepts the same token though

honzasterbaOP•14mo ago

that was my next question, if the auth is the same, thanks! I suspect the internal may change more frequently 🙂

Brody•14mo ago

yes it would

honzasterbaOP•14mo ago

I can see that just updating the numreplicas has no effect (other than changing the setting), so I have to trigger a deploy to make it actually stick, right?

Brody•14mo ago

~~doing that mutation should trigger a re-deploy~~ ~~I mean it did it my tests, well now I'm second guessing myself~~ I'm ~~probably~~ wrong, you'd want the serviceInstanceRedeploy mutation in that case then

honzasterbaOP•14mo ago

it does not for me, the dashboard changes showing new number of replicas, but redeploy does not happen just a side note, the internal endpoint does not seem to support introspection, not sure if that is intentional

Brody•14mo ago

yes that's definitely intentional

honzasterbaOP•14mo ago

thanks a lot, I think I have all I need now

Brody•14mo ago

no problem, if you need anything else don't be afraid to ask

Faraz•14mo ago

I think this not being in the public api is an oversight. The internal api is… well, internal. I’ll try to fix this soon.

macwilko•14mo ago

I should proably start using this When a store installs my app, initially there's a burst of activity, I need to sync a bunch of data for small stores this is handled with the worker I use for most tasks but for a large store, it's not enough I'de like to maybe play with this API if it's available?

Brody•14mo ago

theres no auto scaling, even with the api, the original poster intended to roll their own auto scaler

macwilko•14mo ago

yeah I could do that

if (new_store_is_large)
  add_worker_replica(2, for: 3.hours)

if (new_store_is_large)
  add_worker_replica(2, for: 3.hours)

Brody•14mo ago

new_store_is_large 🤣

macwilko•14mo ago

hehe i mean I just had to handle 35k records added to the DB >.< that was heavy when you're using an ORM like ActiveRecord and my web process getting pinged hard from all the webhook events for this store ... groans in developer

Linear•14mo ago

Issue PRO-1274 created.

PRO-1274 - Add numReplicas to public API

Status

Triage

Assignee

Faraz Patankar

Product

sam.oriental•5mo ago

any headwind on this? serviceInstance(environmentId: $environmentId, serviceId: $serviceId) {\n __typename\n buildCommand\n builder\n createdAt\n cronSchedule\n deletedAt\n # domains\n environmentId\n healthcheckPath\n healthcheckTimeout\n id\n isUpdatable\n # latestDeployment\n nextCronRunAt\n nixpacksPlan\n numReplicas\n railwayConfigFile\n region\n restartPolicyMaxRetries\n restartPolicyType\n rootDirectory\n serviceId\n sleepApplication\n # source\n startCommand\n updatedAt\n upstreamUrl\n watchPatterns\n }\n}", "variables": "{\n\t"environmentId": null,\n\t"serviceId": null\n}"}}, "url": {"raw": "https://backboard.railway.app/graphql/v2", "protocol": "https", "host": ["backboard", "railway", "app"], "path": ["graphql", "v2"]}, "description": "Get a service instance i can only see numreplicas in the service instance

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How to change the number of replicas via API?