---
title: "ChannelUpgradeInit defines a rpc handler method for MsgChannelUpgradeInit."
method: POST
path: "/ibc.core.channel.v1.Msg/ChannelUpgradeInit"
tags: ["Msg"]
---

# ChannelUpgradeInit defines a rpc handler method for MsgChannelUpgradeInit.

`POST /ibc.core.channel.v1.Msg/ChannelUpgradeInit`

## Request body

- object — MsgChannelUpgradeInit defines the request type for the ChannelUpgradeInit rpc WARNING: Initializing a channel upgrade in the same block as opening the channel may result in the counterparty being incapable of opening.
  - `port_id` string
  - `channel_id` string
  - `fields` object — UpgradeFields are the fields in a channel end which may be changed during a channel upgrade.
    - `ordering` 'ORDER_NONE_UNSPECIFIED' | 'ORDER_UNORDERED' | 'ORDER_ORDERED' — - ORDER_NONE_UNSPECIFIED: zero-value for channel ordering - ORDER_UNORDERED: packets can be delivered in any order, which may differ from the order in which they were sent. - ORDER_ORDERED: packets are delivered exactly in the order which they were sent
    - `connection_hops` string[]
    - `version` string
  - `signer` string

## Response `200`

A successful response.

## Other responses

- `default` — An unexpected error response.

## Changes

- **2024-07-11** `ca7e84576c8e` — 1 info
  - endpoint added
- **2024-05-15** `41fb8b09e244` — 1 breaking
  - api path removed without deprecation
- **2024-03-06** `0ded0c5649f1` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/pokt-network/apis/http-api-console/changes/ibc.core.channel.v1.Msg/ChannelUpgradeInit/post.md)

---

[API](https://skmtc.dev/pokt-network/apis/http-api-console.md) · [All operations](https://skmtc.dev/pokt-network/apis/http-api-console/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/pokt-network/http-api-console/revisions/ca7e84576c8e/schema)