Hello,
If in my application I run multiple promises together using Promise.all, how can I replicate that with k6?
I didn’t see anything mentioned about that in the docs/github.
Basically our homepage prepares 4 graphql requests as promises, then we use Promise.all to run them in parallel.
How can I replicate this with k6 to get more accurate results?
Hi Omar, welcome to the forum!
For parallel HTTP requests within a single VU, you would want to make use of http.batch.
Thank you Tom. That’s exactly what I needed.
On a different topic, does k6 support sending graphql queries with variables like apollo client?
Meaning when I send the request it has two parts:
1-the string query that has the selection set and the query types like [CustomerWhereUniqueInput].
2- the variables object that we set all data inside like say when I want to query, I add this variables object:
const variables = {
where: {
name: {
equals: "Omar"
}
}
};
The only example I found was this Load testing GraphQL with k6
and it hardcodes the variables in the query string.
So my question is, how can I pass variables?
Nevermind, managed to find out how. If the blog article enable users to submit changes from the website(like Prisma docs), then I would happily submit a PR explaining how I solved it so other people won’t fall into the same issue.
Thank you@
I don’t think our blogs allow edits, but the docs site itself does.
I could ask the blog writer to modify their post, but I do note that the basic example linked toward the bottom of the post does contain a parameterized “mutation” query:
Well both the query and mutation are doing basically the same thing; substituting values in the query string, which is nice in custom resolvers that only have flat fields.
Anyway, here’s how I got it to work:
const getQueryAndVariables = (where, orderBy, numberOfRecords) => {
const variables = {};
if (where) {
variables.where = where;
}
if (orderBy) {
variables.orderBy = orderBy;
}
if (numberOfRecords) {
variables.take = numberOfRecords;
}
return {
variables,
query: `
query ($orderBy: [CampaignOrderByInput!], $where: CampaignWhereInput,$take: Int) {
campaigns( where: $where, orderBy: $orderBy,take: $take) {
id
description
}
}`,
};
}
const campaignsQuery = getQueryAndVariables(argsValues);
let res = http.post(ENDPOINT, JSON.stringify({ query: campaignsQuery.query, variables: campaignsQuery.variables }), { headers: headers });`
That’s basically it. But there’s one thing that was weird, the spread operator doesn’t work at the http.post line, although this is a javascript file. It says unexpected token, like this example:
JSON.stringify({ ...campaignsQuery }); //Unexpected token ...