[typescript-fetch] Invalid response signature #439
Description
I use typescript-fetch to generate me fetch code for this openapi operation
"/pet/{petId}": {
"get": {
"tags": [
"pet"
],
"summary": "Find pet by ID.",
"description": "Returns a single pet.",
"operationId": "getPetById",
"parameters": [
{
"name": "petId",
"in": "path",
"description": "ID of pet to return",
"required": true,
"schema": {
"type": "integer",
"format": "int64"
}
}
],
"responses": {
"200": {
"description": "successful operation",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Pet"
}
},
"application/xml": {
"schema": {
"$ref": "#/components/schemas/Pet"
}
}
}
},
"400": {
"description": "Invalid ID supplied"
},
"404": {
"description": "Pet not found"
},
"default": {
"description": "Unexpected error"
}
},
}
}
It generates me this code
async getPetById(
p: {
petId: number
},
timeout?: number,
opts: RequestInit = {},
): Promise<
Res<200, t_Pet> | Res<400, void> | Res<404, void> | Res<StatusCode, void>
> {
const url = this.basePath + `/pet/${p["petId"]}`
const headers = this._headers({ Accept: "application/json" }, opts.headers)
return this._fetch(url, { method: "GET", ...opts, headers }, timeout)
}
But this is not usable at runtime because
const client = new SwaggerPetstoreOpenApi30({
basePath: 'https://petstore.swagger.io/v2'
});
const response = await client.getPetById({
petId: 1
});
if (response.status === 200) {
Const data = await response.json(); => here data is t_Pet or void
}
What you must generate is
async getPetById(
p: {
petId: number
},
timeout?: number,
opts: RequestInit = {},
): Promise<
Res<200, t_Pet> | Res<400, void> | Res<404, void> | Res<Exclude<StatusCode, 200 | 400 | 404>, void>
> {
const url = this.basePath + `/pet/${p["petId"]}`
const headers = this._headers({ Accept: "application/json" }, opts.headers)
return this._fetch(url, { method: "GET", ...opts, headers }, timeout)
}
You need to add Exclude the processed StatusCodes from the list